Extracting prog: 1m26.883461202s
Minimizing prog: 26m52.026450814s
Simplifying prog options: 3m19.993212913s
Extracting C: 1m7.724745606s
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:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-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:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-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:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 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
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-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:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
mount$bind(&(0x7f00000002c0)='.\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x101091, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-mount$bind-syz_init_net_socket$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-mount$bind-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
socket$nl_netfilter(0x10, 0x3, 0xc)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000340)={0x0}}, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
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$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, 0x0, 0x0)
listen(r1, 0x0)
mount$bind(&(0x7f0000000300)='./file0/../file0\x00', &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, &(0x7f0000000340)='./file0/file0\x00', 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x89101a, 0x0)
mount$bind(&(0x7f0000000100)='./file0\x00', &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program crashed: general protection fault in lock_sock_nested
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, 0x0, 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
testing program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x89101a, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m1.712215689s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
program did not crash
simplifying guilty program options
testing program (duration=1m1.712215689s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, 0x0, 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
extracting C reproducer
testing compiled C program (duration=1m1.712215689s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
program did not crash
testing program (duration=1m1.712215689s, {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}}): socket$nl_netfilter-sendmsg$NFT_BATCH-mlock-mmap$IORING_OFF_SQES-mkdirat-syz_init_net_socket$bt_l2cap-bind$bt_l2cap-listen-mount$bind-mount$bind-mount$bind
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x0)
mlock(&(0x7f0000ffa000/0x4000)=nil, 0x4000)
mmap$IORING_OFF_SQES(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x1, 0x4000010, 0xffffffffffffffff, 0x10000000)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0)
r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
bind$bt_l2cap(r1, &(0x7f0000001180)={0x1f, 0x0, @any, 0x3}, 0xe)
listen(r1, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x89101a, 0x0)
mount$bind(0x0, &(0x7f0000000480)='./file0/../file0\x00', 0x0, 0x0, 0x0)
mount$bind(0x0, 0x0, 0x0, 0x0, 0x0)

program did not crash
reproducing took 32m47.76606922s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 1 UID: 0 PID: 30 Comm: kworker/1:0 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events l2cap_info_timeout
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d ca ee e8 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 07 7c 93 0f 84
RSP: 0000:ffffc900006978e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000004b RSI: 1ffff920000d2f2f RDI: 0000000000000258
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff905f33d7 R11: 0000000000000009 R12: 0000000000000258
R13: ffff88801d6ca440 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefe6e274b8 CR3: 000000004c82a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 lock_sock_nested+0x3a/0xf0 net/core/sock.c:3622
 lock_sock include/net/sock.h:1617 [inline]
 l2cap_sock_ready_cb+0x41/0x170 net/bluetooth/l2cap_sock.c:1662
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1239 [inline]
 l2cap_conn_start+0x15c/0xb00 net/bluetooth/l2cap_core.c:1506
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d ca ee e8 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 07 7c 93 0f 84
RSP: 0000:ffffc900006978e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000004b RSI: 1ffff920000d2f2f RDI: 0000000000000258
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff905f33d7 R11: 0000000000000009 R12: 0000000000000258
R13: ffff88801d6ca440 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefe6e274b8 CR3: 000000004c82a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	08 84 d2 0f 85 15 14 	or     %al,0x1415850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	44 8b 0d ca ee e8 0e 	mov    0xee8eeca(%rip),%r9d        # 0xee8eeda
  10:	45 85 c9             	test   %r9d,%r9d
  13:	0f 84 b4 0e 00 00    	je     0xecd
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 e2             	mov    %r12,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 96 2c 00 00    	jne    0x2cca
  34:	49 8b 04 24          	mov    (%r12),%rax
  38:	48 3d a0 07 7c 93    	cmp    $0xffffffff937c07a0,%rax
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 1 UID: 0 PID: 30 Comm: kworker/1:0 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events l2cap_info_timeout
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d ca ee e8 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 07 7c 93 0f 84
RSP: 0000:ffffc900006978e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000004b RSI: 1ffff920000d2f2f RDI: 0000000000000258
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff905f33d7 R11: 0000000000000009 R12: 0000000000000258
R13: ffff88801d6ca440 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefe6e274b8 CR3: 000000004c82a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 lock_sock_nested+0x3a/0xf0 net/core/sock.c:3622
 lock_sock include/net/sock.h:1617 [inline]
 l2cap_sock_ready_cb+0x41/0x170 net/bluetooth/l2cap_sock.c:1662
 l2cap_chan_ready net/bluetooth/l2cap_core.c:1239 [inline]
 l2cap_conn_start+0x15c/0xb00 net/bluetooth/l2cap_core.c:1506
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d ca ee e8 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 07 7c 93 0f 84
RSP: 0000:ffffc900006978e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000004b RSI: 1ffff920000d2f2f RDI: 0000000000000258
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff905f33d7 R11: 0000000000000009 R12: 0000000000000258
R13: ffff88801d6ca440 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefe6e274b8 CR3: 000000004c82a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	08 84 d2 0f 85 15 14 	or     %al,0x1415850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	44 8b 0d ca ee e8 0e 	mov    0xee8eeca(%rip),%r9d        # 0xee8eeda
  10:	45 85 c9             	test   %r9d,%r9d
  13:	0f 84 b4 0e 00 00    	je     0xecd
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 e2             	mov    %r12,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 96 2c 00 00    	jne    0x2cca
  34:	49 8b 04 24          	mov    (%r12),%rax
  38:	48 3d a0 07 7c 93    	cmp    $0xffffffff937c07a0,%rax
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84