Extracting prog: 1m42.11734495s
Minimizing prog: 34m30.811743515s
Simplifying prog options: 4m21.458076581s
Extracting C: 26.605509576s
Simplifying C: 0s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket$key-sendmsg$key-socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r4}, 0x10)
r5 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r5, &(0x7f0000000040)={0x3, 0x0, &(0x7f0000000340)={&(0x7f0000000180)={0x2, 0x3, 0x0, 0x3, 0xc, 0x0, 0x0, 0x0, [@sadb_key={0x2, 0x9, 0x8, 0x0, "e9"}, @sadb_address={0x3, 0x6, 0x0, 0x0, 0x0, @in={0x2, 0x0, @multicast1}}, @sadb_sa={0x2, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3}, @sadb_address={0x3, 0x5, 0x0, 0x0, 0x0, @in={0x2, 0x0, @local}}]}, 0x60}, 0x1, 0x7}, 0x0)
r6 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r6, &(0x7f0000000940)={0x0, 0x1a, &(0x7f0000000180)=[{&(0x7f0000000000)="1c000000190081084e81f782db44b904021d080006067c09e8fe55a1", 0x1c}], 0x1, 0x0, 0x0, 0x6000}, 0x0)

program crashed: possible deadlock in rfkill_fop_write
single: successfully extracted reproducer
found reproducer with 21 syscalls
minimizing guilty program
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket$key-sendmsg$key-socket$kcm
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r4}, 0x10)
r5 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r5, &(0x7f0000000040)={0x3, 0x0, &(0x7f0000000340)={&(0x7f0000000180)={0x2, 0x3, 0x0, 0x3, 0xc, 0x0, 0x0, 0x0, [@sadb_key={0x2, 0x9, 0x8, 0x0, "e9"}, @sadb_address={0x3, 0x6, 0x0, 0x0, 0x0, @in={0x2, 0x0, @multicast1}}, @sadb_sa={0x2, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3}, @sadb_address={0x3, 0x5, 0x0, 0x0, 0x0, @in={0x2, 0x0, @local}}]}, 0x60}, 0x1, 0x7}, 0x0)
socket$kcm(0x10, 0x2, 0x0)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket$key-sendmsg$key
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r4}, 0x10)
r5 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r5, &(0x7f0000000040)={0x3, 0x0, &(0x7f0000000340)={&(0x7f0000000180)={0x2, 0x3, 0x0, 0x3, 0xc, 0x0, 0x0, 0x0, [@sadb_key={0x2, 0x9, 0x8, 0x0, "e9"}, @sadb_address={0x3, 0x6, 0x0, 0x0, 0x0, @in={0x2, 0x0, @multicast1}}, @sadb_sa={0x2, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3}, @sadb_address={0x3, 0x5, 0x0, 0x0, 0x0, @in={0x2, 0x0, @local}}]}, 0x60}, 0x1, 0x7}, 0x0)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-socket$key
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r4}, 0x10)
socket$key(0xf, 0x3, 0x2)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)
bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r4}, 0x10)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000100)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime-sendmsg$kcm
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000000000)="d8000000180081064e81f782db44b904021d080006067c09e8fe55a10a0015400400142603600e120800060000001001a8001600a400014003000000036004fab94dcf5c0461c1d67f6f94007134cf6ee08000a0e408e8d8ef52a98516277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe7c9f8775730d16a4683f5aeb4edbb57a5025ccca9e00360db70100000040fad95667e006dcdf63951f215ce3bb9ad809d5e1cace81ed0bffece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92954b43370e9701", 0xd8}], 0x1}, 0x0)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create-timer_settime
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x989680}, {0x0, 0x989680}}, 0x0)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill-timer_create
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = gettid()
r3 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r3, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r3, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)
timer_create(0x0, &(0x7f0000000040)={0x0, 0x21, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
gettid()
r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r2, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)
write$rfkill(r2, &(0x7f0000000340)={0x53, 0x8, 0x0, 0x1, 0xcc}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
gettid()
r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r2, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-openat$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
gettid()
openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)

program did not crash
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-gettid-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
gettid()
write$rfkill(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program did not crash
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-getsockopt$inet_sctp_SCTP_MAX_BURST-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = socket$inet(0x2, 0x800, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8)
r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r2, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-socket$inet-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
socket$inet(0x2, 0x800, 0x84)
r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r1, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-sendmsg$802154_dgram-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
sendmsg$802154_dgram(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x24, @long={0x3, 0x2, {0xaaaaaaaaaaaa0302}}}, 0x14, &(0x7f00000002c0)={&(0x7f0000000240)}, 0x1, 0x0, 0x0, 0x4040014}, 0x4040048)
r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r1, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-syz_init_net_socket$802154_dgram-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-sendmmsg$inet6-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
sendmmsg$inet6(0xffffffffffffffff, &(0x7f0000000f00)=[{{&(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c, &(0x7f0000000500)=[{&(0x7f0000000140)="03", 0x1}], 0x1}}], 0x1, 0x4000001)
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-syz_init_net_socket$nl_generic-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-syz_open_procfs-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='status\x00')
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): prctl$PR_SET_SYSCALL_USER_DISPATCH_ON-openat$rfkill-write$rfkill
detailed listing:
executing program 0:
prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x35, 0x1, 0x8, 0x0, 0x0)
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
testing program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, 0x0, 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program did not crash
testing program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
program crashed: possible deadlock in hci_dev_do_close
a never seen crash title: possible deadlock in hci_dev_do_close, ignore
simplifying guilty program options
testing program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
extracting C reproducer
testing compiled C program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
program crashed: possible deadlock in hci_dev_do_close
a never seen crash title: possible deadlock in hci_dev_do_close, ignore
testing program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0), 0x602, 0x0)
write$rfkill(r0, &(0x7f0000000300)={0x0, 0x2, 0x3, 0x1}, 0x8)

program crashed: possible deadlock in rfkill_fop_write
extracting C reproducer
testing compiled C program (duration=1m3.589937782s, {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}}): openat$rfkill-write$rfkill
program crashed: possible deadlock in hci_dev_do_close
a never seen crash title: possible deadlock in hci_dev_do_close, ignore
reproducing took 41m32.138779507s
repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
5.15.173-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.16/4162 is trying to acquire lock:
ffff0000d5598c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 kernel/workqueue.c:3090

but task is already holding lock:
ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 net/rfkill/core.c:1266

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (rfkill_global_mutex){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       rfkill_register+0x44/0x7a4 net/rfkill/core.c:1045
       hci_register_dev+0x3e0/0x880 net/bluetooth/hci_core.c:3960
       __vhci_create_device drivers/bluetooth/hci_vhci.c:129 [inline]
       vhci_create_device+0x2c4/0x568 drivers/bluetooth/hci_vhci.c:153
       vhci_get_user drivers/bluetooth/hci_vhci.c:210 [inline]
       vhci_write+0x318/0x3b8 drivers/bluetooth/hci_vhci.c:290
       call_write_iter include/linux/fs.h:2174 [inline]
       new_sync_write fs/read_write.c:507 [inline]
       vfs_write+0x884/0xb44 fs/read_write.c:594
       ksys_write+0x15c/0x26c fs/read_write.c:647
       __do_sys_write fs/read_write.c:659 [inline]
       __se_sys_write fs/read_write.c:656 [inline]
       __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #3 (&data->open_mutex){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       vhci_send_frame+0x8c/0x10c drivers/bluetooth/hci_vhci.c:71
       hci_send_frame+0x194/0x2f0 net/bluetooth/hci_core.c:4256
       hci_sched_acl_pkt net/bluetooth/hci_core.c:4781 [inline]
       hci_sched_acl net/bluetooth/hci_core.c:4866 [inline]
       hci_tx_work+0x9ac/0x16cc net/bluetooth/hci_core.c:4932
       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

-> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}:
       __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
       flush_work+0x24/0x38 kernel/workqueue.c:3115
       hci_dev_do_close+0x16c/0x1060 net/bluetooth/hci_core.c:1756
       hci_unregister_dev+0x248/0x4d4 net/bluetooth/hci_core.c:4040
       vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345
       __fput+0x1c4/0x800 fs/file_table.c:280
       ____fput+0x20/0x30 fs/file_table.c:308
       task_work_run+0x130/0x1e4 kernel/task_work.c:188
       exit_task_work include/linux/task_work.h:33 [inline]
       do_exit+0x670/0x20bc kernel/exit.c:874
       do_group_exit+0x110/0x268 kernel/exit.c:996
       get_signal+0x634/0x1550 kernel/signal.c:2900
       do_signal arch/arm64/kernel/signal.c:890 [inline]
       do_notify_resume+0x3d0/0x32b8 arch/arm64/kernel/signal.c:943
       prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
       exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
       el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #1 (&hdev->req_lock){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       hci_req_sync net/bluetooth/hci_request.c:278 [inline]
       bg_scan_update+0x9c/0x470 net/bluetooth/hci_request.c:2952
       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

-> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3788 [inline]
       __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
       lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
       __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
       __cancel_work_timer+0x3ec/0x548 kernel/workqueue.c:3181
       cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217
       hci_request_cancel_all+0xcc/0x2d0 net/bluetooth/hci_request.c:3522
       hci_dev_do_close+0x54/0x1060 net/bluetooth/hci_core.c:1736
       hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235
       rfkill_set_block+0x18c/0x37c net/rfkill/core.c:345
       rfkill_fop_write+0x594/0x750 net/rfkill/core.c:1274
       vfs_write+0x280/0xb44 fs/read_write.c:592
       ksys_write+0x15c/0x26c fs/read_write.c:647
       __do_sys_write fs/read_write.c:659 [inline]
       __se_sys_write fs/read_write.c:656 [inline]
       __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

other info that might help us debug this:

Chain exists of:
  (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(rfkill_global_mutex);
                               lock(&data->open_mutex);
                               lock(rfkill_global_mutex);
  lock((work_completion)(&hdev->bg_scan_update));

 *** DEADLOCK ***

1 lock held by syz.0.16/4162:
 #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 net/rfkill/core.c:1266

stack backtrace:
CPU: 0 PID: 4162 Comm: syz.0.16 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011
 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
 __cancel_work_timer+0x3ec/0x548 kernel/workqueue.c:3181
 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217
 hci_request_cancel_all+0xcc/0x2d0 net/bluetooth/hci_request.c:3522
 hci_dev_do_close+0x54/0x1060 net/bluetooth/hci_core.c:1736
 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235
 rfkill_set_block+0x18c/0x37c net/rfkill/core.c:345
 rfkill_fop_write+0x594/0x750 net/rfkill/core.c:1274
 vfs_write+0x280/0xb44 fs/read_write.c:592
 ksys_write+0x15c/0x26c fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

final repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
5.15.173-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.16/4162 is trying to acquire lock:
ffff0000d5598c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xd0/0x1c0 kernel/workqueue.c:3090

but task is already holding lock:
ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 net/rfkill/core.c:1266

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (rfkill_global_mutex){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       rfkill_register+0x44/0x7a4 net/rfkill/core.c:1045
       hci_register_dev+0x3e0/0x880 net/bluetooth/hci_core.c:3960
       __vhci_create_device drivers/bluetooth/hci_vhci.c:129 [inline]
       vhci_create_device+0x2c4/0x568 drivers/bluetooth/hci_vhci.c:153
       vhci_get_user drivers/bluetooth/hci_vhci.c:210 [inline]
       vhci_write+0x318/0x3b8 drivers/bluetooth/hci_vhci.c:290
       call_write_iter include/linux/fs.h:2174 [inline]
       new_sync_write fs/read_write.c:507 [inline]
       vfs_write+0x884/0xb44 fs/read_write.c:594
       ksys_write+0x15c/0x26c fs/read_write.c:647
       __do_sys_write fs/read_write.c:659 [inline]
       __se_sys_write fs/read_write.c:656 [inline]
       __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #3 (&data->open_mutex){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       vhci_send_frame+0x8c/0x10c drivers/bluetooth/hci_vhci.c:71
       hci_send_frame+0x194/0x2f0 net/bluetooth/hci_core.c:4256
       hci_sched_acl_pkt net/bluetooth/hci_core.c:4781 [inline]
       hci_sched_acl net/bluetooth/hci_core.c:4866 [inline]
       hci_tx_work+0x9ac/0x16cc net/bluetooth/hci_core.c:4932
       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

-> #2 ((work_completion)(&hdev->tx_work)){+.+.}-{0:0}:
       __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
       flush_work+0x24/0x38 kernel/workqueue.c:3115
       hci_dev_do_close+0x16c/0x1060 net/bluetooth/hci_core.c:1756
       hci_unregister_dev+0x248/0x4d4 net/bluetooth/hci_core.c:4040
       vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345
       __fput+0x1c4/0x800 fs/file_table.c:280
       ____fput+0x20/0x30 fs/file_table.c:308
       task_work_run+0x130/0x1e4 kernel/task_work.c:188
       exit_task_work include/linux/task_work.h:33 [inline]
       do_exit+0x670/0x20bc kernel/exit.c:874
       do_group_exit+0x110/0x268 kernel/exit.c:996
       get_signal+0x634/0x1550 kernel/signal.c:2900
       do_signal arch/arm64/kernel/signal.c:890 [inline]
       do_notify_resume+0x3d0/0x32b8 arch/arm64/kernel/signal.c:943
       prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
       exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
       el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #1 (&hdev->req_lock){+.+.}-{3:3}:
       __mutex_lock_common+0x194/0x2154 kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xa4/0xf8 kernel/locking/mutex.c:743
       hci_req_sync net/bluetooth/hci_request.c:278 [inline]
       bg_scan_update+0x9c/0x470 net/bluetooth/hci_request.c:2952
       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

-> #0 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3788 [inline]
       __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
       lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
       __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
       __cancel_work_timer+0x3ec/0x548 kernel/workqueue.c:3181
       cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217
       hci_request_cancel_all+0xcc/0x2d0 net/bluetooth/hci_request.c:3522
       hci_dev_do_close+0x54/0x1060 net/bluetooth/hci_core.c:1736
       hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235
       rfkill_set_block+0x18c/0x37c net/rfkill/core.c:345
       rfkill_fop_write+0x594/0x750 net/rfkill/core.c:1274
       vfs_write+0x280/0xb44 fs/read_write.c:592
       ksys_write+0x15c/0x26c fs/read_write.c:647
       __do_sys_write fs/read_write.c:659 [inline]
       __se_sys_write fs/read_write.c:656 [inline]
       __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

other info that might help us debug this:

Chain exists of:
  (work_completion)(&hdev->bg_scan_update) --> &data->open_mutex --> rfkill_global_mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(rfkill_global_mutex);
                               lock(&data->open_mutex);
                               lock(rfkill_global_mutex);
  lock((work_completion)(&hdev->bg_scan_update));

 *** DEADLOCK ***

1 lock held by syz.0.16/4162:
 #0: ffff800016f25fe8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x250/0x750 net/rfkill/core.c:1266

stack backtrace:
CPU: 0 PID: 4162 Comm: syz.0.16 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011
 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x32d4/0x7638 kernel/locking/lockdep.c:5012
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 __flush_work+0xf8/0x1c0 kernel/workqueue.c:3090
 __cancel_work_timer+0x3ec/0x548 kernel/workqueue.c:3181
 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217
 hci_request_cancel_all+0xcc/0x2d0 net/bluetooth/hci_request.c:3522
 hci_dev_do_close+0x54/0x1060 net/bluetooth/hci_core.c:1736
 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235
 rfkill_set_block+0x18c/0x37c net/rfkill/core.c:345
 rfkill_fop_write+0x594/0x750 net/rfkill/core.c:1274
 vfs_write+0x280/0xb44 fs/read_write.c:592
 ksys_write+0x15c/0x26c fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584