Extracting prog: 22m30.99311352s
Minimizing prog: 1h11m18.200555172s
Simplifying prog options: 14m40.913395739s
Extracting C: 5m14.39890115s
Simplifying C: 0s


extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 programs separately with timeout 6m0s
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-close-socket$inet_tcp-socket$nl_generic-socket$nl_route-syz_genetlink_get_family_id$nl80211-ioctl$sock_ipv6_tunnel_SIOCGET6RD-pipe-socket-socket$inet6_sctp-socket$nl_route-socket$nl_route-sendmsg$nl_route
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
close(0xffffffffffffffff)
socket$inet_tcp(0x2, 0x1, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
socket$nl_route(0x10, 0x3, 0x0)
syz_genetlink_get_family_id$nl80211(0x0, 0xffffffffffffffff)
ioctl$sock_ipv6_tunnel_SIOCGET6RD(0xffffffffffffffff, 0x89f8, 0x0)
pipe(&(0x7f0000000740))
socket(0x2a, 0x2, 0x0)
socket$inet6_sctp(0xa, 0x1, 0x84)
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)=ANY=[@ANYBLOB="9000000010000305000000000000000000000700", @ANYRES32=0x0, @ANYBLOB="996e06004d4c0700540012800800010068737200480002800500030008000000050003000500000005000300fd00000008000200", @ANYRES32=r0, @ANYBLOB="08000100", @ANYRES32=r1], 0x90}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-openat-unlink-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket-sched_setscheduler-prctl$PR_SCHED_CORE-syz_open_dev$vim2m-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-socket$nl_netfilter-sendmsg$NFT_BATCH
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000780)='ext4\x00', &(0x7f0000000480)='./file1\x00', 0x0, &(0x7f0000000280), 0x1, 0x787, &(0x7f0000001000)="$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")
openat(0xffffffffffffff9c, &(0x7f0000000040)='./file2\x00', 0x143042, 0x8d)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='./file1\x00', 0x8042, 0x0)
unlink(&(0x7f0000000140)='./file1\x00')
r0 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000200)={0x18, 0x4, &(0x7f0000000300)=ANY=[@ANYBLOB="18010000000000000000000000000000850000006d00000095"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x94)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000080)={&(0x7f0000000000)='sched_switch\x00', r0}, 0x18)
socket(0x1, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
syz_open_dev$vim2m(&(0x7f0000000000), 0x47b, 0x2)
r1 = getpid()
sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r2=>0xffffffffffffffff, <r3=>0xffffffffffffffff})
connect$unix(r2, &(0x7f000057eff8)=@abs, 0x6e)
sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6)
r4 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000003a80)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a01010000000000000000050000000900010073797a30000000005c000000030a01030000000000000000050000000900010073797a30000000000900030073797a320000000008000a4000000003280004800800024000000012080001400000000014000300776c616e31000000000000000000000014000000110001"], 0xa4}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-pipe-write$P9_RGETLOCK-fcntl$setpipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8e}, 0x0)
sched_setscheduler(0x0, 0x1, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f07ebbeeb, 0x8031, 0xffffffffffffffff, 0x2000)
pipe(&(0x7f00000000c0)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
write$P9_RGETLOCK(r0, &(0x7f00000002c0)=ANY=[], 0x200002e6)
fcntl$setpipe(r0, 0x407, 0x7000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-sched_setaffinity-timer_create-timer_settime-membarrier
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
sched_setaffinity(0x0, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
membarrier(0x4, 0x0)

program crashed: INFO: rcu detected stall in brk
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-sched_setaffinity-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
sched_setaffinity(0x0, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-sched_setaffinity-timer_create
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
sched_setaffinity(0x0, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-sched_setaffinity-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
sched_setaffinity(0x0, 0x0, 0x0)
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-mmap-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, 0x0, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, 0x0)
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
extracting C reproducer
testing compiled C program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h3m14.364842168s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=8857, q=251 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294964877-4294954377), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g8857 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28096 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 schedule+0xb9/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2f2/0x1310 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0x95/0x380 kernel/rcu/tree.c:1905
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 4526 Comm: syz.4.20 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: f5 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ce 81 41 f7 48 89 df e8 26 47 42 f7 e8 41 49 65 f7 fb bf 01 00 00 00 <e8> 36 c4 35 f7 65 8b 05 07 85 e0 75 85 c0 74 02 5b c3 e8 54 96 de
RSP: 0018:ffffc900038a7bb8 EFLAGS: 00000286
RAX: 1a5526896202e400 RBX: ffff88802f14e5c0 RCX: 1a5526896202e400
RDX: dffffc0000000000 RSI: ffffffff8a8c0460 RDI: 0000000000000001
RBP: ffff88802f14e858 R08: dffffc0000000000 R09: ffffed1005e29cb9
R10: ffffed1005e29cb9 R11: 1ffff11005e29cb8 R12: 1ffff11005e29d0b
R13: 0000000000000011 R14: dffffc0000000000 R15: 0000000000000000
FS:  0000555594cf6500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e65ffff CR3: 00000000569cd000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x1163/0x1350 kernel/signal.c:2874
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f445318e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe4947c138 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 000000000002a13a RCX: 00007f445318e929
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 000000044947c42f
R10: 00007f4452e00000 R11: 0000000000000246 R12: 00007f44533b5fac
R13: 00007f44533b5fa0 R14: ffffffffffffffff R15: 0000000000000004
 </TASK>

report is corrupted, running repro again
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x11, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000000))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10499 ticks this GP) idle=800c/1/0x4000000000000000 softirq=9825/9825 fqs=28
	(t=10500 jiffies g=9893 q=741 ncpus=2)
rcu: rcu_preempt kthread starved for 10434 jiffies! g9893 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27840 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x10e9/0x40d0 kernel/sched/core.c:6561
 schedule+0xb9/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2f2/0x1310 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0x95/0x380 kernel/rcu/tree.c:1905
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4499 Comm: syz.3.19 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_acquire+0x15e/0x490 kernel/locking/lockdep.c:5658
Code: 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 19 02 00 00 41 83 3e 00 0f 85 02 01 00 00 48 c7 84 24 a0 00 00 00 00 00 00 00 9c <8f> 84 24 a0 00 00 00 4c 8b b4 24 a0 00 00 00 fa 48 c7 c7 40 11 8c
RSP: 0018:ffffc900037e7998 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 7ac32d21cb572400
RDX: 0000000000000000 RSI: ffffffff8adf1c00 RDI: ffffffff8adf1bc0
RBP: ffffc900037e7aa8 R08: dffffc0000000000 R09: fffffbfff1c3ecc6
R10: fffffbfff1c3ecc6 R11: 1ffffffff1c3ecc5 R12: 0000000000000000
R13: 1ffff920006fcf40 R14: ffff88807c9de41c R15: dffffc0000000000
FS:  00005555581f0500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc5ffff CR3: 0000000077859000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 __lock_timer+0x55/0x3f0 kernel/time/posix-timers.c:631
 posixtimer_rearm+0x5c/0x340 kernel/time/posix-timers.c:324
 dequeue_signal+0x1b6/0x4b0 kernel/signal.c:704
 get_signal+0x547/0x1350 kernel/signal.c:2751
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb852984097
Code: 24 08 64 48 2b 14 25 28 00 00 00 75 05 48 83 c4 18 c3 e8 0c db 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8b 05 71 a6 1f 00 <48> 85 c0 74 14 48 83 ec 08 ff d0 85 c0 75 1a 31 c0 48 83 c4 08 c3
RSP: 002b:00007ffe403094c8 EFLAGS: 00000206
RAX: 00007ffe403a9910 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00007fb852a99960 RSI: 00007ffe40309520 RDI: 0000000000000001
RBP: 00007fb852a299a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb852bb5fa0 R14: 00007fb852bb5fa0 R15: 0000000000000004
 </TASK>
CPU: 1 PID: 4495 Comm: syz.0.24 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: f5 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 ce 81 41 f7 48 89 df e8 26 47 42 f7 e8 41 49 65 f7 fb bf 01 00 00 00 <e8> 36 c4 35 f7 65 8b 05 07 85 e0 75 85 c0 74 02 5b c3 e8 54 96 de
RSP: 0018:ffffc900035d7bb8 EFLAGS: 00000286
RAX: 78a9e87de44dc900 RBX: ffff88807a69c0c0 RCX: 78a9e87de44dc900
RDX: dffffc0000000000 RSI: ffffffff8a8c0460 RDI: 0000000000000001
RBP: ffff88807a69c358 R08: dffffc0000000000 R09: ffffed100f4d3819
R10: ffffed100f4d3819 R11: 1ffff1100f4d3818 R12: 1ffff1100f4d386b
R13: 0000000000000011 R14: dffffc0000000000 R15: 0000000000000000
FS:  000055555ab6e500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d65ffff CR3: 000000007edf0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x1163/0x1350 kernel/signal.c:2874
 arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f4b9d860c65
Code: 80 00 00 00 00 48 83 c4 28 48 c7 c0 ff ff ff ff 5b 5d c3 66 90 41 57 41 56 41 55 41 54 55 53 48 83 ec 38 80 3d 9b 13 35 00 00 <89> 7c 24 0c 88 54 24 10 48 89 74 24 28 0f 85 c8 09 00 00 80 3d 65
RSP: 002b:00007ffc6b596010 EFLAGS: 00000246
RAX: 00007f4b9dbb5fa0 RBX: 00007f4b9dbb5fa8 RCX: 0000000000000000
RDX: 00000000fffffc03 RSI: 00007f4b9dbb6038 RDI: 0000000000000003
RBP: 00007f4b9dbb5fb0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00007f4b9dbb5fa0
R13: 0000200000000000 R14: 00007ffc6b596088 R15: 0000000000000004
 </TASK>