Extracting prog: 1m45.319065478s Minimizing prog: 21m39.428414104s Simplifying prog options: 4m24.806346258s Extracting C: 18.09877888s Simplifying C: 0s extracting reproducer from 29 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}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$vfat-mkdirat-unlinkat-write$rfkill-prlimit64 detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x1, 0x0, &(0x7f0000000000)) mkdirat(0xffffffffffffff9c, 0x0, 0x0) unlinkat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x200) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) prlimit64(0x0, 0xe, 0x0, &(0x7f0000000200)) program crashed: possible deadlock in rfkill_fop_write single: successfully extracted reproducer found reproducer with 13 syscalls minimizing guilty program testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$vfat-mkdirat-unlinkat-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x1, 0x0, &(0x7f0000000000)) mkdirat(0xffffffffffffff9c, 0x0, 0x0) unlinkat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x200) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {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$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$vfat-mkdirat-unlinkat detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x1, 0x0, &(0x7f0000000000)) mkdirat(0xffffffffffffff9c, 0x0, 0x0) unlinkat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x200) program did not crash testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$vfat-mkdirat-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x1, 0x0, &(0x7f0000000000)) mkdirat(0xffffffffffffff9c, 0x0, 0x0) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {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$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-syz_mount_image$vfat-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$eJzs3c9vHFcdAPDvjH82SesEeoAKSIBCQFHW8aaNql5aLiBUVUJUHBCH1Ngby2Q3G7LrUptIuH8DSCBxgj+BAxIHpJ44wIkjEgdAlANSgYgqRuph0MyO1669Jou93m12Px9pMj/ezHzf283Me367Oy+AiXUpIrYjYjYiXo+IhXJ7Uk7xcmfK93v44P7KzoP7K0lk2Wv/TIr0fFtxwHy5f0ScLc85HxFf/0rEt5PDcVubW7eX6/XavXJ9sd24u9ja3Lq63lheq63V7lSrN5ZuXHvh+vPVgZX1YuMX7355/ZVv/PpXn3zn99tf/H6erXNlWrccA9Yp+kw3Tm46Il45jWAjMFXOZ0ecD44njYiPRMRniut/IaaK/50AwDjLsoXIFvavAwDjLi36wJK0EhFpWjYCKp0+vKfjTFpvttpXbjU37qx2+srOx0x6a71eu3Zh7o/fLXaeSfL1pSKtSC/WqwfWr0fEhYj40dwTxXplpVlfHU2TBwAm3tn99X9EvDeXppVKX4f2+FQPAHhszI86AwDA0Kn/AWDyqP8BYPL0Uf+XH/Zvn3peAIDh6O/vf9/3A4Bxov8fACaP+h8AJsrXXn01n7Kd8vnXq29sbtxuvnF1tda6XWlsrFRWmvfuVtaazbXimT2NR52v3mzeXXouNt5cbNda7cXW5tbNRnPjTvtm8Vzvm7WZoZQKAPhfLlx8+w9JRGy/+EQxxb6xHNTVMN7SAe4FPF6mTnKwBgI81oz2BZOrryq8aCT89tTzAoxGzx/3zPdc/KCf/B9BfM8IPlQuf7z//n9jPMN4OdCz/342qowAQ3e8/v+XBp4PYPiO3f//58HmAxi+LEsOjvk/200CAMbSCb7Cl/1gUI0QYKQe9XDPgXz+DwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGPmXER8J5K0UowFnub/ppVKxJMRcT5mklvr9dq1iHgqLkbEzFy+vrR78HujzTsAcFzp35Ny/K/LC8+eO5g6m/xnrphHxPd++tqP31xut+8t5dv/1d0+tzt8WHXvuBOMKwgA9O+v/exU1N/Vcr60t/3hg/sru9Mp5vGQd7/UHXx0ZefB/WLqpExHlmVZxHzRljjz7ySmy2PmI+KZiJgaQPzttyLiY73KnxR9I+fLkU/3x48y9pNDjZ9+IH5apHXm+cv30QHkBSbN2/n95+Ve118al4p57+t/vrhDnVxx/5uP2L337eyLP11GmuoRP7/mL/Ub47nffPXQxmyhk/ZWxDPTveIn3fjJEfGf7TP+nz7xqR++dERa9rOIy9E7/v5Yi+3G3cXW5tbV9cbyWm2tdqdavbF049oL15+vLhZ91Iu7PdWH/ePFK08dlbe8/GeOiN95588eKP9s99jP9Vn+n7//+rc+vbc6dzD+Fz7b+/1/uojY+/XP68TP9xl/+cwvjxy+O4+/ekT5H/X+X+kz/jt/21rtc1cAYAham1u3l+v12r0TLeR/hQ7iPIcW8iz2t/Nuc/FkQf8SxcLey5JEEsc+4UzvpLwx1tfhp/WqnvrCdLetONgzfzM/45CLkw68FMdZiPPlwsNhBR3dPQkYjr2LPiJ+N+rcAAAAAAAAAAAAAAAAvQzjN0yjLiMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADj678BAAD//2PAxWs=") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x1, 0x0, &(0x7f0000000000)) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-syz_mount_image$vfat-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") syz_mount_image$vfat(&(0x7f00000002c0), &(0x7f0000000280)='./bus\x00', 0x810408, 0x0, 0xff, 0x0, &(0x7f00000007c0)) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {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$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-syz_mount_image$ext4-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./bus\x00', 0x2008002, &(0x7f0000000400)={[{@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1000}}, {@nodiscard}, {@quota}]}, 0x1, 0x56f, &(0x7f00000004c0)="$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") write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) r2 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r2, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000000c0)={&(0x7f0000000040)='contention_end\x00', r1}, 0x10) write$rfkill(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program did not crash testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r1, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-setsockopt$bt_BT_DEFER_SETUP-openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) setsockopt$bt_BT_DEFER_SETUP(r0, 0x112, 0x7, &(0x7f0000000000)=0x1, 0x4) r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r1, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-dup-openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) dup(r0) r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r1, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_l2cap-openat$rfkill-write$rfkill detailed listing: executing program 0: syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r0, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r0, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = openat$rfkill(0xffffffffffffff9c, 0x0, 0x801, 0x0) write$rfkill(r0, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program did not crash testing program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=45.466954716s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill program crashed: possible deadlock in hci_dev_do_close a never seen crash title: possible deadlock in hci_dev_do_close, ignore simplifying guilty program options testing program (duration=45.466954716s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r0, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write extracting C reproducer testing compiled C program (duration=45.466954716s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill program crashed: possible deadlock in hci_dev_do_close a never seen crash title: possible deadlock in hci_dev_do_close, ignore testing program (duration=45.466954716s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$rfkill-write$rfkill detailed listing: executing program 0: r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0) write$rfkill(r0, &(0x7f0000000080)={0x0, 0x0, 0x3, 0x1}, 0x8) program crashed: possible deadlock in rfkill_fop_write extracting C reproducer testing compiled C program (duration=45.466954716s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$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 29m44.228389944s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected 5.15.184-syzkaller #0 Not tainted ------------------------------------------------------ syz.0.16/4280 is trying to acquire lock: ffff0000d6bf4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc kernel/workqueue.c:3087 but task is already holding lock: ffff8000164f7788 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc 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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rfkill_register+0x44/0x77c net/rfkill/core.c:1045 hci_register_dev+0x3d8/0x854 net/bluetooth/hci_core.c:3960 __vhci_create_device drivers/bluetooth/hci_vhci.c:129 [inline] vhci_create_device+0x2bc/0x564 drivers/bluetooth/hci_vhci.c:153 vhci_get_user drivers/bluetooth/hci_vhci.c:210 [inline] vhci_write+0x30c/0x3ac drivers/bluetooth/hci_vhci.c:290 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x7c8/0xa2c fs/read_write.c:594 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 vhci_send_frame+0x88/0x118 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+0x7e4/0x1394 net/bluetooth/hci_core.c:4932 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 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+0xf4/0x1bc kernel/workqueue.c:3090 flush_work+0x24/0x38 kernel/workqueue.c:3115 hci_dev_do_close+0x164/0x105c net/bluetooth/hci_core.c:1756 hci_unregister_dev+0x23c/0x4c0 net/bluetooth/hci_core.c:4040 vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x67c/0x1f58 kernel/exit.c:874 do_group_exit+0x100/0x268 kernel/exit.c:996 get_signal+0x73c/0x1340 kernel/signal.c:2900 do_signal arch/arm64/kernel/signal.c:893 [inline] do_notify_resume+0x35c/0x3128 arch/arm64/kernel/signal.c:946 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+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 hci_req_sync net/bluetooth/hci_request.c:278 [inline] bg_scan_update+0x48/0x3d0 net/bluetooth/hci_request.c:2952 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 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+0x2928/0x651c kernel/locking/lockdep.c:5012 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623 __flush_work+0xf4/0x1bc kernel/workqueue.c:3090 __cancel_work_timer+0x2ec/0x448 kernel/workqueue.c:3181 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217 hci_request_cancel_all+0xbc/0x2d0 net/bluetooth/hci_request.c:3522 hci_dev_do_close+0x54/0x105c net/bluetooth/hci_core.c:1736 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:345 rfkill_fop_write+0x4a4/0x5cc net/rfkill/core.c:1274 vfs_write+0x280/0xa2c fs/read_write.c:592 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/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.0.16/4280: #0: ffff8000164f7788 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc net/rfkill/core.c:1266 stack backtrace: CPU: 0 PID: 4280 Comm: syz.0.16 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2011 check_noncircular+0x240/0x2d4 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+0x2928/0x651c kernel/locking/lockdep.c:5012 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623 __flush_work+0xf4/0x1bc kernel/workqueue.c:3090 __cancel_work_timer+0x2ec/0x448 kernel/workqueue.c:3181 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217 hci_request_cancel_all+0xbc/0x2d0 net/bluetooth/hci_request.c:3522 hci_dev_do_close+0x54/0x105c net/bluetooth/hci_core.c:1736 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:345 rfkill_fop_write+0x4a4/0x5cc net/rfkill/core.c:1274 vfs_write+0x280/0xa2c fs/read_write.c:592 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/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 5.15.184-syzkaller #0 Not tainted ------------------------------------------------------ syz.0.16/4280 is trying to acquire lock: ffff0000d6bf4c28 ((work_completion)(&hdev->bg_scan_update)){+.+.}-{0:0}, at: __flush_work+0xcc/0x1bc kernel/workqueue.c:3087 but task is already holding lock: ffff8000164f7788 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc 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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rfkill_register+0x44/0x77c net/rfkill/core.c:1045 hci_register_dev+0x3d8/0x854 net/bluetooth/hci_core.c:3960 __vhci_create_device drivers/bluetooth/hci_vhci.c:129 [inline] vhci_create_device+0x2bc/0x564 drivers/bluetooth/hci_vhci.c:153 vhci_get_user drivers/bluetooth/hci_vhci.c:210 [inline] vhci_write+0x30c/0x3ac drivers/bluetooth/hci_vhci.c:290 call_write_iter include/linux/fs.h:2172 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0x7c8/0xa2c fs/read_write.c:594 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 vhci_send_frame+0x88/0x118 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+0x7e4/0x1394 net/bluetooth/hci_core.c:4932 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 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+0xf4/0x1bc kernel/workqueue.c:3090 flush_work+0x24/0x38 kernel/workqueue.c:3115 hci_dev_do_close+0x164/0x105c net/bluetooth/hci_core.c:1756 hci_unregister_dev+0x23c/0x4c0 net/bluetooth/hci_core.c:4040 vhci_release+0x74/0xc4 drivers/bluetooth/hci_vhci.c:345 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x67c/0x1f58 kernel/exit.c:874 do_group_exit+0x100/0x268 kernel/exit.c:996 get_signal+0x73c/0x1340 kernel/signal.c:2900 do_signal arch/arm64/kernel/signal.c:893 [inline] do_notify_resume+0x35c/0x3128 arch/arm64/kernel/signal.c:946 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+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/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+0x194/0x1edc kernel/locking/mutex.c:596 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 hci_req_sync net/bluetooth/hci_request.c:278 [inline] bg_scan_update+0x48/0x3d0 net/bluetooth/hci_request.c:2952 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 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+0x2928/0x651c kernel/locking/lockdep.c:5012 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623 __flush_work+0xf4/0x1bc kernel/workqueue.c:3090 __cancel_work_timer+0x2ec/0x448 kernel/workqueue.c:3181 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217 hci_request_cancel_all+0xbc/0x2d0 net/bluetooth/hci_request.c:3522 hci_dev_do_close+0x54/0x105c net/bluetooth/hci_core.c:1736 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:345 rfkill_fop_write+0x4a4/0x5cc net/rfkill/core.c:1274 vfs_write+0x280/0xa2c fs/read_write.c:592 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/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.0.16/4280: #0: ffff8000164f7788 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x238/0x5cc net/rfkill/core.c:1266 stack backtrace: CPU: 0 PID: 4280 Comm: syz.0.16 Not tainted 5.15.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 dump_stack+0x1c/0x5c lib/dump_stack.c:113 print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2011 check_noncircular+0x240/0x2d4 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+0x2928/0x651c kernel/locking/lockdep.c:5012 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623 __flush_work+0xf4/0x1bc kernel/workqueue.c:3090 __cancel_work_timer+0x2ec/0x448 kernel/workqueue.c:3181 cancel_work_sync+0x24/0x38 kernel/workqueue.c:3217 hci_request_cancel_all+0xbc/0x2d0 net/bluetooth/hci_request.c:3522 hci_dev_do_close+0x54/0x105c net/bluetooth/hci_core.c:1736 hci_rfkill_set_block+0xdc/0x1d0 net/bluetooth/hci_core.c:2235 rfkill_set_block+0x18c/0x374 net/rfkill/core.c:345 rfkill_fop_write+0x4a4/0x5cc net/rfkill/core.c:1274 vfs_write+0x280/0xa2c fs/read_write.c:592 ksys_write+0x120/0x210 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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584