Extracting prog: 2m7.449530114s Minimizing prog: 27m4.344932543s Simplifying prog options: 0s Extracting C: 33.558541452s Simplifying C: 20m12.987518798s extracting reproducer from 69 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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000500)=ANY=[@ANYBLOB="02c820080004004000033f011c"], 0xd) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000500)=ANY=[@ANYBLOB="02c820080004004000033f011c"], 0xd) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="02c82010000c0001000b0108000200000000000000"], 0x15) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: bind$bt_rfcomm(0xffffffffffffffff, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(0xffffffffffffffff, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, 0x0, 0x0) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(0x0, 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(0x0, 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(0x0, 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(0x0, 0x17) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB], 0x17) program did not crash extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close simplifying C reproducer testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci program crashed: possible deadlock in rfcomm_dlc_close testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_rfcomm-bind$bt_rfcomm-listen-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) bind$bt_rfcomm(r0, &(0x7f0000000000)={0x1f, @any, 0x1}, 0xa) listen(r0, 0x5) syz_emit_vhci(&(0x7f0000000200)=ANY=[@ANYBLOB="02c8200c00080001000202040003004000"], 0x11) syz_emit_vhci(&(0x7f0000000300)=ANY=[@ANYBLOB="02c8200c00080001000403040040000000"], 0x11) syz_emit_vhci(&(0x7f0000000400)=ANY=[@ANYBLOB="02c8200e000a00010005010600400000000000"], 0x13) syz_emit_vhci(&(0x7f0000000600)=ANY=[@ANYBLOB="02c82012000e00400003ef158311020007007f00000770"], 0x17) program crashed: possible deadlock in rfcomm_dlc_close validation run: crashed=true reproducing took 53m5.926842853s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.20/5939 is trying to acquire lock: ffffffff8e562248 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 but task is already holding lock: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1780 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_close net/bluetooth/rfcomm/sock.c:246 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: __rfcomm_sock_close+0xe8/0x2d0 net/bluetooth/rfcomm/sock.c:225 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}: lock_sock_nested+0x48/0x100 net/core/sock.c:3543 lock_sock include/net/sock.h:1780 [inline] rfcomm_connect_ind+0x4f0/0xd90 net/bluetooth/rfcomm/sock.c:966 rfcomm_recv_pn net/bluetooth/rfcomm/core.c:1512 [inline] rfcomm_recv_mcc net/bluetooth/rfcomm/core.c:1730 [inline] rfcomm_recv_frame net/bluetooth/rfcomm/core.c:1863 [inline] rfcomm_process_rx net/bluetooth/rfcomm/core.c:2015 [inline] rfcomm_process_sessions net/bluetooth/rfcomm/core.c:2108 [inline] rfcomm_run+0x2ba9/0x5e50 net/bluetooth/rfcomm/core.c:2196 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 -> #0 (rfcomm_mutex){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x37ef/0x7d80 kernel/locking/lockdep.c:5137 lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5756 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x135/0xc80 kernel/locking/mutex.c:747 rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 __rfcomm_sock_close+0x1a4/0x2d0 net/bluetooth/rfcomm/sock.c:232 rfcomm_sock_close net/bluetooth/rfcomm/sock.c:247 [inline] rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] __rfcomm_sock_close+0xf0/0x2d0 net/bluetooth/rfcomm/sock.c:225 rfcomm_sock_shutdown+0xb9/0x240 net/bluetooth/rfcomm/sock.c:918 rfcomm_sock_release+0x59/0x120 net/bluetooth/rfcomm/sock.c:939 __sock_release net/socket.c:659 [inline] sock_close+0xa7/0x210 net/socket.c:1421 __fput+0x221/0x940 fs/file_table.c:418 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); lock(rfcomm_mutex); lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); lock(rfcomm_mutex); *** DEADLOCK *** 2 locks held by syz.0.20/5939: #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline] #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x82/0x210 net/socket.c:1421 #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1780 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_close net/bluetooth/rfcomm/sock.c:246 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: __rfcomm_sock_close+0xe8/0x2d0 net/bluetooth/rfcomm/sock.c:225 stack backtrace: CPU: 1 PID: 5939 Comm: syz.0.20 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 check_noncircular+0x2fc/0x400 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x37ef/0x7d80 kernel/locking/lockdep.c:5137 lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5756 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x135/0xc80 kernel/locking/mutex.c:747 rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 __rfcomm_sock_close+0x1a4/0x2d0 net/bluetooth/rfcomm/sock.c:232 rfcomm_sock_close net/bluetooth/rfcomm/sock.c:247 [inline] rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] __rfcomm_sock_close+0xf0/0x2d0 net/bluetooth/rfcomm/sock.c:225 rfcomm_sock_shutdown+0xb9/0x240 net/bluetooth/rfcomm/sock.c:918 rfcomm_sock_release+0x59/0x120 net/bluetooth/rfcomm/sock.c:939 __sock_release net/socket.c:659 [inline] sock_close+0xa7/0x210 net/socket.c:1421 __fput+0x221/0x940 fs/file_table.c:418 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fd754f9e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffccb183f68 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffccb184050 RCX: 00007fd754f9e159 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000018846 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2c520000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd755225fac R14: 00007fd755225fa8 R15: 00007fd755225fa0 final repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.20/5939 is trying to acquire lock: ffffffff8e562248 (rfcomm_mutex){+.+.}-{3:3}, at: rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 but task is already holding lock: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1780 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_close net/bluetooth/rfcomm/sock.c:246 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: __rfcomm_sock_close+0xe8/0x2d0 net/bluetooth/rfcomm/sock.c:225 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}: lock_sock_nested+0x48/0x100 net/core/sock.c:3543 lock_sock include/net/sock.h:1780 [inline] rfcomm_connect_ind+0x4f0/0xd90 net/bluetooth/rfcomm/sock.c:966 rfcomm_recv_pn net/bluetooth/rfcomm/core.c:1512 [inline] rfcomm_recv_mcc net/bluetooth/rfcomm/core.c:1730 [inline] rfcomm_recv_frame net/bluetooth/rfcomm/core.c:1863 [inline] rfcomm_process_rx net/bluetooth/rfcomm/core.c:2015 [inline] rfcomm_process_sessions net/bluetooth/rfcomm/core.c:2108 [inline] rfcomm_run+0x2ba9/0x5e50 net/bluetooth/rfcomm/core.c:2196 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 -> #0 (rfcomm_mutex){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x37ef/0x7d80 kernel/locking/lockdep.c:5137 lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5756 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x135/0xc80 kernel/locking/mutex.c:747 rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 __rfcomm_sock_close+0x1a4/0x2d0 net/bluetooth/rfcomm/sock.c:232 rfcomm_sock_close net/bluetooth/rfcomm/sock.c:247 [inline] rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] __rfcomm_sock_close+0xf0/0x2d0 net/bluetooth/rfcomm/sock.c:225 rfcomm_sock_shutdown+0xb9/0x240 net/bluetooth/rfcomm/sock.c:918 rfcomm_sock_release+0x59/0x120 net/bluetooth/rfcomm/sock.c:939 __sock_release net/socket.c:659 [inline] sock_close+0xa7/0x210 net/socket.c:1421 __fput+0x221/0x940 fs/file_table.c:418 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); lock(rfcomm_mutex); lock(sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM); lock(rfcomm_mutex); *** DEADLOCK *** 2 locks held by syz.0.20/5939: #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline] #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] #0: ffff88805fc7ca20 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x82/0x210 net/socket.c:1421 #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1780 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_close net/bluetooth/rfcomm/sock.c:246 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] #1: ffff88802d91d130 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: __rfcomm_sock_close+0xe8/0x2d0 net/bluetooth/rfcomm/sock.c:225 stack backtrace: CPU: 1 PID: 5939 Comm: syz.0.20 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 check_noncircular+0x2fc/0x400 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x37ef/0x7d80 kernel/locking/lockdep.c:5137 lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5756 __mutex_lock_common kernel/locking/mutex.c:603 [inline] __mutex_lock+0x135/0xc80 kernel/locking/mutex.c:747 rfcomm_dlc_close+0x39/0x180 net/bluetooth/rfcomm/core.c:511 __rfcomm_sock_close+0x1a4/0x2d0 net/bluetooth/rfcomm/sock.c:232 rfcomm_sock_close net/bluetooth/rfcomm/sock.c:247 [inline] rfcomm_sock_cleanup_listen net/bluetooth/rfcomm/sock.c:191 [inline] __rfcomm_sock_close+0xf0/0x2d0 net/bluetooth/rfcomm/sock.c:225 rfcomm_sock_shutdown+0xb9/0x240 net/bluetooth/rfcomm/sock.c:918 rfcomm_sock_release+0x59/0x120 net/bluetooth/rfcomm/sock.c:939 __sock_release net/socket.c:659 [inline] sock_close+0xa7/0x210 net/socket.c:1421 __fput+0x221/0x940 fs/file_table.c:418 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fd754f9e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffccb183f68 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffccb184050 RCX: 00007fd754f9e159 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000018846 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2c520000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd755225fac R14: 00007fd755225fa8 R15: 00007fd755225fa0