Extracting prog: 28.974050067s
Minimizing prog: 33m27.708994524s
Simplifying prog options: 0s
Extracting C: 29.502569443s
Simplifying C: 11m39.592783429s


extracting reproducer from 81 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-shutdown-socket$igmp-setsockopt$MRT_DEL_VIF-bpf$PROG_LOAD-syz_clone
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', <r2=>r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r3 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r3, 0x0) (async)
listen(r3, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r4=>0x0)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}]) (async)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r5 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r5}, 0x10)
shutdown(r3, 0x0)
r6 = socket$igmp(0x2, 0x3, 0x2)
setsockopt$MRT_DEL_VIF(r6, 0x0, 0xcb, &(0x7f0000000140)={0xffffffffffffffff, 0x8, 0x0, 0x8, @vifc_lcl_ifindex=r2, @private=0xa010101}, 0x10)
bpf$PROG_LOAD(0x5, 0x0, 0x56)
syz_clone(0x60100100, 0x0, 0x0, &(0x7f00000001c0), 0x0, 0x0)

program crashed: KASAN: use-after-free Read in fast_dput
single: successfully extracted reproducer
found reproducer with 33 syscalls
minimizing guilty program
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-shutdown-socket$igmp-setsockopt$MRT_DEL_VIF-bpf$PROG_LOAD
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', <r2=>r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r3 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r3, 0x0) (async)
listen(r3, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r4=>0x0)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}]) (async)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r5 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r5}, 0x10)
shutdown(r3, 0x0)
r6 = socket$igmp(0x2, 0x3, 0x2)
setsockopt$MRT_DEL_VIF(r6, 0x0, 0xcb, &(0x7f0000000140)={0xffffffffffffffff, 0x8, 0x0, 0x8, @vifc_lcl_ifindex=r2, @private=0xa010101}, 0x10)
bpf$PROG_LOAD(0x5, 0x0, 0x56)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-shutdown-socket$igmp-setsockopt$MRT_DEL_VIF
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', <r2=>r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r3 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r3, 0x0) (async)
listen(r3, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r4=>0x0)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}]) (async)
io_submit(r4, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r3, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r3, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r5 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r5}, 0x10)
shutdown(r3, 0x0)
r6 = socket$igmp(0x2, 0x3, 0x2)
setsockopt$MRT_DEL_VIF(r6, 0x0, 0xcb, &(0x7f0000000140)={0xffffffffffffffff, 0x8, 0x0, 0x8, @vifc_lcl_ifindex=r2, @private=0xa010101}, 0x10)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-shutdown-socket$igmp
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r4}, 0x10)
shutdown(r2, 0x0)
socket$igmp(0x2, 0x3, 0x2)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-shutdown
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r4}, 0x10)
shutdown(r2, 0x0)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000100)={&(0x7f0000000040)='kmem_cache_free\x00', r4}, 0x10)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="18000000000000000000000000000000850000000f000000850000000500000095"], &(0x7f0000000480)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x80) (async)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit-io_submit
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}])

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup-io_submit
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140)=<r3=>0x0)
io_submit(r3, 0x2, &(0x7f0000000600)=[&(0x7f0000000000)={0x1802, 0x0, 0x0, 0x5, 0xfffd, r2, 0x0}, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x5, 0x0, r2, 0x0}]) (async)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup-io_setup
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)
io_setup(0x6, &(0x7f0000000140))

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen-io_setup
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)
io_setup(0x6, &(0x7f0000000140)) (async)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen-listen
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)
listen(r2, 0x0)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp-listen
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
listen(r2, 0x0) (async)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp-socket$inet6_tcp
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)
socket$inet6_tcp(0xa, 0x1, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE-socket$inet6_tcp
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)
socket$inet6_tcp(0xa, 0x1, 0x0) (async)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE-bpf$MAP_CREATE
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)
bpf$MAP_CREATE(0x0, 0x0, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix-bpf$MAP_CREATE
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)
bpf$MAP_CREATE(0x0, 0x0, 0x0) (async)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL-sendmmsg$unix
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})
sendmmsg$unix(0xffffffffffffffff, 0x0, 0x0, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet-ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, <r1=>0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)
ioctl$sock_ipv6_tunnel_SIOCCHGTUNNEL(0xffffffffffffffff, 0x89f3, &(0x7f0000000100)={'ip6gre0\x00', &(0x7f0000000080)={'syztnl1\x00', r1, 0x2d, 0x1, 0x2, 0x10000, 0x1, @dev={0xfe, 0x80, '\x00', 0xc}, @empty, 0x1, 0x7800, 0x2, 0xfffffffc}})

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap-getpeername$packet
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
getpeername$packet(0xffffffffffffffff, &(0x7f0000000000)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @local}, &(0x7f0000000040)=0x14)

program crashed: BUG: unable to handle kernel NULL pointer dereference in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64-mmap
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay-prlimit64
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})
prlimit64(0x0, 0xe, 0x0, 0x0)

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch-mount$overlay
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000140)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: KASAN: use-after-free Read in fast_dput
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1-inotify_add_watch
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
r0 = inotify_init1(0x800)
inotify_add_watch(r0, &(0x7f0000000040)='./bus\x00', 0x38)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat-inotify_init1
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)
inotify_init1(0x800)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat-mkdirat
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat-mkdirat
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./file1\x00', 0x0) (async)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir-mkdirat
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1c1)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs-chdir
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f00000001c0)='./bus\x00')

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)

program did not crash
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$incfs
detailed listing:
executing program 0:
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0) (async)

program did not crash
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(0x0, 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program did not crash
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program did not crash
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', 0x0, &(0x7f0000000840), 0x1004002, 0x0)

program did not crash
testing program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0x1004002, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=39.361589952s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
simplifying C reproducer
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
testing program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
testing program (duration=39.361589952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)

program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
reproducing took 48m34.453265532s
repro crashed as (corrupted=false):
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
---[ end trace 78a72b9f722df3b0 ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:454
Write of size 4 at addr 0000000000000170 by task syz-executor/363

CPU: 0 PID: 363 Comm: syz-executor Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 __kasan_report mm/kasan/report.c:431 [inline]
 kasan_report+0xe7/0x140 mm/kasan/report.c:444
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
 ihold+0x20/0x60 fs/inode.c:454
 d_delete_notify include/linux/fsnotify.h:275 [inline]
 vfs_rmdir+0x1f0/0x460 fs/namei.c:4170
 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1148
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1cdeb12a77
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000170
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12d197067 P4D 12d197067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 363 Comm: syz-executor Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 a8 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 d0 2c f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
RSP: 0018:ffffc90000aa7ce8 EFLAGS: 00010246
RAX: ffff88810ed06200 RBX: 0000000000000000 RCX: ffff88810ed062c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7cf8 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 1ffff11021a2b88e
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  000055556e488500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010acc1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 d_delete_notify include/linux/fsnotify.h:275 [inline]
 vfs_rmdir+0x1f0/0x460 fs/namei.c:4170
 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1148
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1cdeb12a77
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
Modules linked in:
CR2: 0000000000000170
---[ end trace 78a72b9f722df3b1 ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 a8 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 d0 2c f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
RSP: 0018:ffffc90000aa7ce8 EFLAGS: 00010246
RAX: ffff88810ed06200 RBX: 0000000000000000 RCX: ffff88810ed062c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7cf8 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 1ffff11021a2b88e
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  000055556e488500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010acc1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	55                   	push   %rbp
   5:	48 89 e5             	mov    %rsp,%rbp
   8:	41 56                	push   %r14
   a:	53                   	push   %rbx
   b:	48 89 fb             	mov    %rdi,%rbx
   e:	e8 31 a8 b3 ff       	call   0xffb3a844
  13:	48 8d bb 70 01 00 00 	lea    0x170(%rbx),%rdi
  1a:	be 04 00 00 00       	mov    $0x4,%esi
  1f:	e8 d0 2c f2 ff       	call   0xfff22cf4
  24:	41 be 01 00 00 00    	mov    $0x1,%r14d
* 2a:	f0 44 0f c1 b3 70 01 	lock xadd %r14d,0x170(%rbx) <-- trapping instruction
  31:	00 00
  33:	41 ff c6             	inc    %r14d
  36:	bf 02 00 00 00       	mov    $0x2,%edi
  3b:	44 89 f6             	mov    %r14d,%esi
  3e:	e8                   	.byte 0xe8
  3f:	b1                   	.byte 0xb1

final repro crashed as (corrupted=false):
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
---[ end trace 78a72b9f722df3b0 ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:454
Write of size 4 at addr 0000000000000170 by task syz-executor/363

CPU: 0 PID: 363 Comm: syz-executor Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 __kasan_report mm/kasan/report.c:431 [inline]
 kasan_report+0xe7/0x140 mm/kasan/report.c:444
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
 ihold+0x20/0x60 fs/inode.c:454
 d_delete_notify include/linux/fsnotify.h:275 [inline]
 vfs_rmdir+0x1f0/0x460 fs/namei.c:4170
 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1148
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1cdeb12a77
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000170
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12d197067 P4D 12d197067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 363 Comm: syz-executor Tainted: G    B   W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 a8 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 d0 2c f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
RSP: 0018:ffffc90000aa7ce8 EFLAGS: 00010246
RAX: ffff88810ed06200 RBX: 0000000000000000 RCX: ffff88810ed062c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7cf8 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 1ffff11021a2b88e
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  000055556e488500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010acc1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 d_delete_notify include/linux/fsnotify.h:275 [inline]
 vfs_rmdir+0x1f0/0x460 fs/namei.c:4170
 incfs_kill_sb+0x105/0x220 fs/incfs/vfs.c:1989
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1148
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1155
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1cdeb12a77
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda8918498 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1cdeb12a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda8918550
RBP: 00007ffda8918550 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda89195e0
R13: 00007f1cdeb95d7d R14: 0000000000006625 R15: 00007ffda8919620
 </TASK>
Modules linked in:
CR2: 0000000000000170
---[ end trace 78a72b9f722df3b1 ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 31 a8 b3 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 d0 2c f2 ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 b1
RSP: 0018:ffffc90000aa7ce8 EFLAGS: 00010246
RAX: ffff88810ed06200 RBX: 0000000000000000 RCX: ffff88810ed062c0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7cf8 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 1ffff11021a2b88e
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  000055556e488500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010acc1000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	55                   	push   %rbp
   5:	48 89 e5             	mov    %rsp,%rbp
   8:	41 56                	push   %r14
   a:	53                   	push   %rbx
   b:	48 89 fb             	mov    %rdi,%rbx
   e:	e8 31 a8 b3 ff       	call   0xffb3a844
  13:	48 8d bb 70 01 00 00 	lea    0x170(%rbx),%rdi
  1a:	be 04 00 00 00       	mov    $0x4,%esi
  1f:	e8 d0 2c f2 ff       	call   0xfff22cf4
  24:	41 be 01 00 00 00    	mov    $0x1,%r14d
* 2a:	f0 44 0f c1 b3 70 01 	lock xadd %r14d,0x170(%rbx) <-- trapping instruction
  31:	00 00
  33:	41 ff c6             	inc    %r14d
  36:	bf 02 00 00 00       	mov    $0x2,%edi
  3b:	44 89 f6             	mov    %r14d,%esi
  3e:	e8                   	.byte 0xe8
  3f:	b1                   	.byte 0xb1