Extracting prog: 5m25.31333208s Minimizing prog: 16m28.28388791s Simplifying prog options: 0s Extracting C: 2m6.687812792s Simplifying C: 16m43.953980876s 30 programs, timeouts [30s 1m40s 6m0s] extracting reproducer from 30 programs testing a last program of every proc single: executing 5 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_io_uring_setup-bpf$PROG_LOAD-openat$cgroup_ro-write$UHID_CREATE2-mmap-syz_io_uring_submit-io_uring_enter detailed listing: executing program 0: r0 = syz_io_uring_setup(0x24fa, &(0x7f0000000240)={0x0, 0x0, 0x10100}, &(0x7f0000000100)=0x0, &(0x7f0000000140)=0x0) bpf$PROG_LOAD(0x5, &(0x7f00000003c0)={0x11, 0xd, &(0x7f0000000180)=ANY=[@ANYBLOB="18000000000000000000000000000000850000005000000018110000", @ANYRES32, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b7040000000000008500000001"], 0x0, 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) write$UHID_CREATE2(r3, &(0x7f00000001c0)=ANY=[@ANYBLOB=' '], 0x118) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x5, 0x13, r3, 0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000000)=@IORING_OP_RECVMSG={0xa, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}) io_uring_enter(r0, 0x2d3e, 0x0, 0x0, 0x0, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$PROG_LOAD-socket$rds-syz_io_uring_setup-prlimit64-sched_setscheduler-getpid-sched_setaffinity-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-bpf$PROG_LOAD-sched_setaffinity-getpid-socket-connect$inet-sendmmsg$inet detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="1b00000000000000000000000080000000000000", @ANYRES32, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="00000000000200000000000000000000000000000800000000000000"], 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0x6, 0x13, &(0x7f0000000400)=@ringbuf={{}, {{0x18, 0x1, 0x1, 0x0, r0}}, {}, [@ringbuf_query={{0x18, 0x1, 0x1, 0x0, r0}}], {{}, {}, {0x85, 0x0, 0x0, 0x85}}}, &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffd, @void, @value}, 0x94) socket$rds(0x15, 0x5, 0x0) syz_io_uring_setup(0x7b71, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r1 = getpid() sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2) sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r2, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) bpf$PROG_LOAD(0x5, 0x0, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2) getpid() r4 = socket(0x840000000002, 0x3, 0x100) connect$inet(r4, &(0x7f00000005c0)={0x2, 0x0, @remote}, 0x10) sendmmsg$inet(r4, &(0x7f0000005240)=[{{0x0, 0xfffffdef, 0x0, 0x0, 0x0, 0x0, 0x10}, 0xfffffdef}], 0x4000095, 0x401eb94) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): io_uring_setup-openat$binderfs-dup3-sendmsg$key-recvmmsg-socket$inet6_sctp-bind$inet6-listen-accept-socket$inet6_sctp-sendto$inet6-ptrace-ptrace$getregset detailed listing: executing program 0: io_uring_setup(0x2e35, &(0x7f0000000180)) r0 = openat$binderfs(0xffffffffffffff9c, 0x0, 0x0, 0x0) dup3(r0, 0xffffffffffffffff, 0x0) sendmsg$key(0xffffffffffffffff, &(0x7f00000020c0)={0x0, 0x0, 0x0}, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f0000001e00), 0x0, 0x12001, 0x0) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) bind$inet6(r1, &(0x7f00000002c0)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) listen(r1, 0x4) accept(r1, &(0x7f0000000080)=@can, 0x0) r2 = socket$inet6_sctp(0xa, 0x5, 0x84) sendto$inet6(r2, &(0x7f0000847fff)='X', 0x34000, 0x0, &(0x7f000005ffe4)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) ptrace(0x10, 0x0) ptrace$getregset(0x4204, 0x0, 0x201, &(0x7f0000000000)={0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-sendmsg$IPSET_CMD_CREATE-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-recvmmsg-syz_emit_vhci detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x68}}, 0x0) r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) recvmmsg(r0, &(0x7f0000000a00)=[{{0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000540)=""/123, 0x7b}], 0x1}, 0x7}], 0x57, 0x2026, 0x0) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program crashed: WARNING: bad unlock balance in l2cap_recv_frame single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=52.308778048s, {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}}): mmap-sendmsg$IPSET_CMD_CREATE-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-recvmmsg detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x68}}, 0x0) r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) recvmmsg(r0, &(0x7f0000000a00)=[{{0x0, 0x0, &(0x7f0000000500)=[{&(0x7f0000000540)=""/123, 0x7b}], 0x1}, 0x7}], 0x57, 0x2026, 0x0) program did not crash testing program (duration=52.308778048s, {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}}): mmap-sendmsg$IPSET_CMD_CREATE-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x68}}, 0x0) r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing program (duration=52.308778048s, {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}}): mmap-sendmsg$IPSET_CMD_CREATE-syz_init_net_socket$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x68}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program did not crash testing program (duration=52.308778048s, {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}}): mmap-sendmsg$IPSET_CMD_CREATE-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000001080)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x68}}, 0x0) connect$bt_l2cap(0xffffffffffffffff, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program did not crash testing program (duration=52.308778048s, {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}}): mmap-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27fffff, 0x4002011, 0xffffffffffffffff, 0x0) r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing program (duration=52.308778048s, {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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing program (duration=52.308778048s, {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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB="02c8000c00080002"], 0x11) program did not crash testing program (duration=52.308778048s, {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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(0x0, 0x11) program did not crash testing program (duration=52.308778048s, {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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x0, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x10}}, 0xf) syz_emit_vhci(&(0x7f00000000c0)=ANY=[@ANYBLOB], 0x11) program did not crash extracting C reproducer testing compiled C program (duration=52.308778048s, {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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame simplifying C reproducer testing compiled C program (duration=52.308778048s, {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}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program did not crash testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false 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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false 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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection: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_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program did not crash testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame testing compiled C program (duration=52.308778048s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_emit_vhci program crashed: WARNING: bad unlock balance in l2cap_recv_frame reproducing took 40m44.239051147s repro crashed as (corrupted=false): ===================================== WARNING: bad unlock balance detected! 5.15.168-syzkaller #0 Not tainted ------------------------------------- kworker/u5:1/4029 is trying to release lock (&chan->lock) at: [] l2cap_chan_unlock include/net/bluetooth/l2cap.h:860 [inline] [] l2cap_conless_channel net/bluetooth/l2cap_core.c:7770 [inline] [] l2cap_recv_frame+0xf60/0x6c28 net/bluetooth/l2cap_core.c:7823 but there are no more locks to release! other info that might help us debug this: 2 locks held by kworker/u5:1/4029: #0: ffff0000d6c70138 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001f937c00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 stack backtrace: CPU: 0 PID: 4029 Comm: kworker/u5:1 Not tainted 5.15.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: hci0 hci_rx_work Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_unlock_imbalance_bug+0x250/0x2a4 kernel/locking/lockdep.c:5065 lock_release+0x4b8/0xa1c kernel/locking/lockdep.c:5643 __mutex_unlock_slowpath+0xe0/0x6d4 kernel/locking/mutex.c:851 mutex_unlock+0x8c/0xe0 kernel/locking/mutex.c:536 l2cap_chan_unlock include/net/bluetooth/l2cap.h:860 [inline] l2cap_conless_channel net/bluetooth/l2cap_core.c:7770 [inline] l2cap_recv_frame+0xf60/0x6c28 net/bluetooth/l2cap_core.c:7823 l2cap_recv_acldata+0x4f4/0x163c net/bluetooth/l2cap_core.c:8535 hci_acldata_packet net/bluetooth/hci_core.c:4969 [inline] hci_rx_work+0x3a0/0x7c4 net/bluetooth/hci_core.c:5160 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 final repro crashed as (corrupted=false): ===================================== WARNING: bad unlock balance detected! 5.15.168-syzkaller #0 Not tainted ------------------------------------- kworker/u5:1/4029 is trying to release lock (&chan->lock) at: [] l2cap_chan_unlock include/net/bluetooth/l2cap.h:860 [inline] [] l2cap_conless_channel net/bluetooth/l2cap_core.c:7770 [inline] [] l2cap_recv_frame+0xf60/0x6c28 net/bluetooth/l2cap_core.c:7823 but there are no more locks to release! other info that might help us debug this: 2 locks held by kworker/u5:1/4029: #0: ffff0000d6c70138 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283 #1: ffff80001f937c00 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285 stack backtrace: CPU: 0 PID: 4029 Comm: kworker/u5:1 Not tainted 5.15.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: hci0 hci_rx_work Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_unlock_imbalance_bug+0x250/0x2a4 kernel/locking/lockdep.c:5065 lock_release+0x4b8/0xa1c kernel/locking/lockdep.c:5643 __mutex_unlock_slowpath+0xe0/0x6d4 kernel/locking/mutex.c:851 mutex_unlock+0x8c/0xe0 kernel/locking/mutex.c:536 l2cap_chan_unlock include/net/bluetooth/l2cap.h:860 [inline] l2cap_conless_channel net/bluetooth/l2cap_core.c:7770 [inline] l2cap_recv_frame+0xf60/0x6c28 net/bluetooth/l2cap_core.c:7823 l2cap_recv_acldata+0x4f4/0x163c net/bluetooth/l2cap_core.c:8535 hci_acldata_packet net/bluetooth/hci_core.c:4969 [inline] hci_rx_work+0x3a0/0x7c4 net/bluetooth/hci_core.c:5160 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870