Extracting prog: 4m12.155421067s
Minimizing prog: 36m34.908561048s
Simplifying prog options: 6m3.119749072s
Extracting C: 2m23.469974701s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-connect$bt_l2cap-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x0, @any, 0x5}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-connect$bt_l2cap-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x0, @any, 0x5}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
single: successfully extracted reproducer
found reproducer with 11 syscalls
minimizing guilty program
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-connect$bt_l2cap-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x0, @any, 0x5}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-connect$bt_l2cap-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x0, @any, 0x5}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-connect$bt_l2cap-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x0, @any, 0x5}, 0xe)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-mount$bind-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
bind$bt_l2cap(0xffffffffffffffff, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(0xffffffffffffffff, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mmap$IORING_OFF_SQES-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(0x0, &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', 0x0, 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, 0x0, 0x0)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(0x0, &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', 0x0, 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m47.475821422s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
program did not crash
simplifying guilty program options
testing program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
extracting C reproducer
testing compiled C program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
program did not crash
testing program (duration=1m47.475821422s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
validation run: crashed=true
testing program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
validation run: crashed=true
testing program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=1m47.475821422s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$dri-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind
detailed listing:
executing program 0:
syz_open_dev$dri(0x0, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r0, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r0, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
validation run: crashed=true
reproducing took 55m59.540522525s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004c: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000260-0x0000000000000267]
CPU: 0 UID: 0 PID: 6104 Comm: kworker/0:7 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events l2cap_info_timeout
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 bb 90 ea fe cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002ee7788 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: ffffffff891f1e18 RCX: 0c54aef94a727800
RDX: 0000000000000000 RSI: ffffffff891f1e18 RDI: 000000000000004c
RBP: ffffffff8a500a55 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a500a10 R12: 0000000000000000
R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f46b81fed00 CR3: 0000000076ad3000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:579
 kasan_check_byte include/linux/kasan.h:401 [inline]
 lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5842
 lock_sock_nested+0x48/0x100 net/core/sock.c:3720
 lock_sock include/net/sock.h:1679 [inline]
 l2cap_sock_ready_cb+0x45/0x140 net/bluetooth/l2cap_sock.c:1677
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1264 [inline]
 l2cap_conn_start+0x76d/0xe50 net/bluetooth/l2cap_core.c:1513
 l2cap_info_timeout+0x68/0xa0 net/bluetooth/l2cap_core.c:1670
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 bb 90 ea fe cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002ee7788 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: ffffffff891f1e18 RCX: 0c54aef94a727800
RDX: 0000000000000000 RSI: ffffffff891f1e18 RDI: 000000000000004c
RBP: ffffffff8a500a55 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a500a10 R12: 0000000000000000
R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc83f457e8 CR3: 000000002fedb000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
   7:	00
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  1c:	48 c1 ef 03          	shr    $0x3,%rdi
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2e:	3c 08                	cmp    $0x8,%al
  30:	0f 92 c0             	setb   %al
  33:	e9 bb 90 ea fe       	jmp    0xfeea90f3
  38:	cc                   	int3
  39:	66                   	data16
  3a:	66                   	data16
  3b:	66                   	data16
  3c:	66                   	data16
  3d:	66                   	data16
  3e:	66                   	data16
  3f:	2e                   	cs

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004c: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000260-0x0000000000000267]
CPU: 0 UID: 0 PID: 6104 Comm: kworker/0:7 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events l2cap_info_timeout
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 bb 90 ea fe cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002ee7788 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: ffffffff891f1e18 RCX: 0c54aef94a727800
RDX: 0000000000000000 RSI: ffffffff891f1e18 RDI: 000000000000004c
RBP: ffffffff8a500a55 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a500a10 R12: 0000000000000000
R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f46b81fed00 CR3: 0000000076ad3000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:579
 kasan_check_byte include/linux/kasan.h:401 [inline]
 lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5842
 lock_sock_nested+0x48/0x100 net/core/sock.c:3720
 lock_sock include/net/sock.h:1679 [inline]
 l2cap_sock_ready_cb+0x45/0x140 net/bluetooth/l2cap_sock.c:1677
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1264 [inline]
 l2cap_conn_start+0x76d/0xe50 net/bluetooth/l2cap_core.c:1513
 l2cap_info_timeout+0x68/0xa0 net/bluetooth/l2cap_core.c:1670
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 bb 90 ea fe cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90002ee7788 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: ffffffff891f1e18 RCX: 0c54aef94a727800
RDX: 0000000000000000 RSI: ffffffff891f1e18 RDI: 000000000000004c
RBP: ffffffff8a500a55 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a500a10 R12: 0000000000000000
R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc83f457e8 CR3: 000000002fedb000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
   7:	00
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  1c:	48 c1 ef 03          	shr    $0x3,%rdi
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2e:	3c 08                	cmp    $0x8,%al
  30:	0f 92 c0             	setb   %al
  33:	e9 bb 90 ea fe       	jmp    0xfeea90f3
  38:	cc                   	int3
  39:	66                   	data16
  3a:	66                   	data16
  3b:	66                   	data16
  3c:	66                   	data16
  3d:	66                   	data16
  3e:	66                   	data16
  3f:	2e                   	cs