Extracting prog: 24.913488945s
Minimizing prog: 10m4.329262562s
Simplifying prog options: 0s
Extracting C: 21.098292448s
Simplifying C: 3m36.603372587s
extracting reproducer from 45 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6-connect$inet6-connect$inet6-ioctl$LOOP_SET_STATUS-ioctl$LOOP_CLR_FD-syz_emit_ethernet
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
r2 = socket$inet6(0xa, 0x80002, 0x0)
connect$inet6(r2, &(0x7f0000000100)={0xa, 0x4e23, 0x2, @local, 0x8001}, 0x1c)
connect$inet6(r2, &(0x7f0000000000)={0xa, 0xfffc, 0xfffffffd, @local, 0x2}, 0x1c)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000200)={0x0, {}, 0x0, {}, 0x0, 0x0, 0x1, 0x9, "eeddb7c25540993ad642248c7b0157ce0dc9b4e500476312cd6cb416f686ce0058265f66cdddf2e9ce8bb87ae03e87a61fb648d5c6a3e9977956be87176a30a9", "a863a5170a11d26a730cb3d1e9fb18cb0e58986d58e881bbe5e4230de84eea7a", [0x3, 0x800]})
ioctl$LOOP_CLR_FD(r0, 0x4c01)
syz_emit_ethernet(0x7e, &(0x7f0000000000)={@random="0f539af21094", @empty, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "1200b0", 0x48, 0x3a, 0x0, @empty, @mcast2, {[], @dest_unreach={0x4, 0x0, 0x0, 0x1, '\x00', {0x0, 0x6, '\x00', 0x0, 0x2c, 0x0, @private1, @rand_addr=' \x01\x00', [@hopopts={0x2f, 0x1, '\x00', [@calipso={0x7, 0x8, {0x22ebffff, 0x0, 0xfc}}]}]}}}}}}}, 0x0)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6-connect$inet6-connect$inet6-ioctl$LOOP_SET_STATUS-ioctl$LOOP_CLR_FD
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
r2 = socket$inet6(0xa, 0x80002, 0x0)
connect$inet6(r2, &(0x7f0000000100)={0xa, 0x4e23, 0x2, @local, 0x8001}, 0x1c)
connect$inet6(r2, &(0x7f0000000000)={0xa, 0xfffc, 0xfffffffd, @local, 0x2}, 0x1c)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000200)={0x0, {}, 0x0, {}, 0x0, 0x0, 0x1, 0x9, "eeddb7c25540993ad642248c7b0157ce0dc9b4e500476312cd6cb416f686ce0058265f66cdddf2e9ce8bb87ae03e87a61fb648d5c6a3e9977956be87176a30a9", "a863a5170a11d26a730cb3d1e9fb18cb0e58986d58e881bbe5e4230de84eea7a", [0x3, 0x800]})
ioctl$LOOP_CLR_FD(r0, 0x4c01)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6-connect$inet6-connect$inet6-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
r2 = socket$inet6(0xa, 0x80002, 0x0)
connect$inet6(r2, &(0x7f0000000100)={0xa, 0x4e23, 0x2, @local, 0x8001}, 0x1c)
connect$inet6(r2, &(0x7f0000000000)={0xa, 0xfffc, 0xfffffffd, @local, 0x2}, 0x1c)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000200)={0x0, {}, 0x0, {}, 0x0, 0x0, 0x1, 0x9, "eeddb7c25540993ad642248c7b0157ce0dc9b4e500476312cd6cb416f686ce0058265f66cdddf2e9ce8bb87ae03e87a61fb648d5c6a3e9977956be87176a30a9", "a863a5170a11d26a730cb3d1e9fb18cb0e58986d58e881bbe5e4230de84eea7a", [0x3, 0x800]})
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6-connect$inet6-connect$inet6
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
r2 = socket$inet6(0xa, 0x80002, 0x0)
connect$inet6(r2, &(0x7f0000000100)={0xa, 0x4e23, 0x2, @local, 0x8001}, 0x1c)
connect$inet6(r2, &(0x7f0000000000)={0xa, 0xfffc, 0xfffffffd, @local, 0x2}, 0x1c)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6-connect$inet6
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
r2 = socket$inet6(0xa, 0x80002, 0x0)
connect$inet6(r2, &(0x7f0000000100)={0xa, 0x4e23, 0x2, @local, 0x8001}, 0x1c)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile-socket$inet6
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
socket$inet6(0xa, 0x80002, 0x0)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS-sendfile
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
sendfile(r0, r0, 0x0, 0x24002de8)
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_CHANGE_FD
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-pwritev-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
pwritev(r1, &(0x7f0000000600)=[{&(0x7f0000000180)="10", 0x1}], 0x1, 0x800000, 0x0)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, 0xffffffffffffffff)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
ioctl$LOOP_CHANGE_FD(0xffffffffffffffff, 0x4c00, r0)
ioctl$LOOP_SET_STATUS(0xffffffffffffffff, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(0x0, 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(0x0, 0x1)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, &(0x7f0000000080)={0x0, {}, 0x0, {}, 0x1, 0x2, 0x1c, 0x15, "db6410a1e6fb928c177ec56c0c3f1d704fcadf25078e4c7bf46fdbb722b186be31d4f35362399f4e7ebeffdf0628a81fbb3bb6177f84d683dd9cb5df817b12da", "5c2d6459a15769d59add6a214439b64a741f2609e640f6c48d21e8ace9398934", [0x1, 0x1]})
program did not crash
testing program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x75f, 0x2a382)
r1 = memfd_create(&(0x7f0000000880)='C\x13\xfc2\x95WD\xaa\xba^\x90\xfd\x8d\xc2\xb1[\x81\xda\xda\xd6\x8c\xc99\xec\x0e*||\xe4\xb3\xc4\xb6\v\xaa\x15\x86,\xac\x8d\x89cu\x10\xdc\x93\x9b\xb4\x93\xafE*:\xe4\xdd\xa5\xa75\xb8\x1e;7\xb7.V\xdcrw[\r\x98\x93j\x9c\xf6\xf8\x99\xefF_\xcd\xdf!b\xc5\xec\ntb\xff\b\xaaF?!\x9f\a\x1a\x03\f\xe94\x1deU\x06zS\xc90\xb9voI\xa5/\xb4\xa7@\xa1\\B\xc2@\r_b\x9a\xeb\b\x81\x00V\xd6/N\xc5\xc6f\xb1\x95Z\xe5w^\xd8\xe7J\x80\xf7\xae\xafuv\x84\x9eG\xd1\xe7\x9b\xf0_9\xc2\x9b\xfd\xc3\xf3\xe4\x95P\xf1m\xcf\xc2\xe1\xe6\xa6\x8c\x11\xfb\xb8S\x8b\x92\\\asW-Ee\x02\x00\x00\x00\xd0;Q\xc1~\x89\xec\xc8\x9b\x88\a\xf2\x93\x82(\x8b\x00\xd8\xb4T\x80\x95\x93\x9c5\xcf\t\x04\x00\x00\x00\x00\x00\x00v\xef\xee+\xab\x9c\x00^R\xb2n?i=\xbe\x16\x8a\xbf\xe3\xcdB\xed\xe14\xe8\xd0\xb7\xff\xfeQ\x1c\x85n8\x1b\xc1\b\x00\x00\x00\x00\x00\x00\x00\x17\x94\xdfW<GE\xf1\xe9\xf1q\x8c\xf0\xae\x98\x8c\xe0\xc1g}\xaeW\xaa\xa1\x90\x8c\n$\xa6\xbb\x10\xaf\xc7~\x11\x03<v\xe9\xc7K\xf6]\x11)u\xd3\x15\x01}\xe25$\xb0\x86v\x80\r\x9c\xb8\xe6\xd3(\xa0G2s\xa9&\xb3QU~u\x13\x05kKp\xa6&\x8eu\x1d\xb2\xa9!\xc9\xfa\xd0dG5\xcbf<}r\xab\x9c\xd9f6iN\xaa>\x92z\xbe\xb2R)\xf1K\xd7\xaf\x99\xf6d\xe8\xec\xb7\xbd+T3\xa6\xa9\xfaY-1qs\x82\xefn*\x96\xc9\x1e\xf4\xd1\x02Dt\xc0\x19\xf7\x89\x96.D [F\xeeYW\x95\x13\xc7;\x94\x13^\x13\xaf\xf0C\x9c\xabf\x1daCS2\x02\xb0\xef\xc7\x8c\x9e\xed\a\n<V\xaa\xbfZ1\xa82\x85\x99\x0e$U\xb4X\xc7\xfa\f\b\x8f\xc4\xbeIt\xe4\xc51\xba\xb9H\xe8\x96\x94\xd7\xdc\x81\x111\t\xafl\x97\xd8T\xd40\x90ON\xaaFY\xb4\xb3\xf4\xf8JT\xc5:\xc5\aGc\xb5\x12\x90\x7f\x00\x91\xce@\xe5\xd3A\xcc\xd5|\x9f\x8e5\x042\x9a\xc1\xa1\a\xb7\xf5\xbc,\xd1\xd3k8\xc5', 0x1)
ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1)
ioctl$LOOP_SET_STATUS(r0, 0x4c02, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=30.572680296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
simplifying C reproducer
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
testing compiled C program (duration=30.572680296s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-memfd_create-ioctl$LOOP_CHANGE_FD-ioctl$LOOP_SET_STATUS
program crashed: possible deadlock in blk_mq_freeze_queue_nomemsave
reproducing took 14m26.944435961s
repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 Not tainted
------------------------------------------------------
syz-executor170/5939 is trying to acquire lock:
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
but task is already holding lock:
ffff888025aa6228 (&q->q_usage_counter(io)#24){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&q->q_usage_counter(io)#24){++++}-{0:0}:
blk_alloc_queue+0x619/0x760 block/blk-core.c:461
blk_mq_alloc_queue+0x179/0x290 block/blk-mq.c:4349
__blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4396
loop_add+0x496/0xb70 drivers/block/loop.c:2067
loop_init+0x164/0x270 drivers/block/loop.c:2302
do_one_initcall+0x120/0x6e0 init/main.c:1257
do_initcall_level init/main.c:1319 [inline]
do_initcalls init/main.c:1335 [inline]
do_basic_setup init/main.c:1354 [inline]
kernel_init_freeable+0x5c2/0x900 init/main.c:1567
kernel_init+0x1c/0x2b0 init/main.c:1457
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
-> #1 (fs_reclaim){+.+.}-{0:0}:
__fs_reclaim_acquire mm/page_alloc.c:4028 [inline]
fs_reclaim_acquire+0x102/0x150 mm/page_alloc.c:4042
might_alloc include/linux/sched/mm.h:318 [inline]
slab_pre_alloc_hook mm/slub.c:4102 [inline]
slab_alloc_node mm/slub.c:4180 [inline]
kmem_cache_alloc_node_noprof+0x57/0x3b0 mm/slub.c:4252
__alloc_skb+0x2b2/0x380 net/core/skbuff.c:658
alloc_skb include/linux/skbuff.h:1340 [inline]
alloc_uevent_skb+0x7d/0x210 lib/kobject_uevent.c:289
uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xca4/0x1870 lib/kobject_uevent.c:608
kobject_synth_uevent+0x7d4/0x8a0 lib/kobject_uevent.c:207
bus_uevent_store+0x3d/0x90 drivers/base/bus.c:832
bus_attr_store+0x71/0xb0 drivers/base/bus.c:172
sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145
kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x5ba/0x1180 fs/read_write.c:684
ksys_write+0x12a/0x240 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (uevent_sock_mutex){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain kernel/locking/lockdep.c:3909 [inline]
__lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
__mutex_lock_common kernel/locking/mutex.c:601 [inline]
__mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
loop_set_size drivers/block/loop.c:211 [inline]
loop_set_size drivers/block/loop.c:208 [inline]
loop_set_status+0x9c7/0xb90 drivers/block/loop.c:1306
loop_set_status_old+0x162/0x1d0 drivers/block/loop.c:1405
lo_ioctl+0x695/0x26d0 drivers/block/loop.c:1575
blkdev_ioctl+0x274/0x6d0 block/ioctl.c:698
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
uevent_sock_mutex --> fs_reclaim --> &q->q_usage_counter(io)#24
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&q->q_usage_counter(io)#24);
lock(fs_reclaim);
lock(&q->q_usage_counter(io)#24);
lock(uevent_sock_mutex);
*** DEADLOCK ***
3 locks held by syz-executor170/5939:
#0: ffff888025c4fb68 (&lo->lo_mutex){+.+.}-{4:4}, at: loop_set_status+0x2a/0xb90 drivers/block/loop.c:1275
#1: ffff888025aa6228 (&q->q_usage_counter(io)#24){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
#2: ffff888025aa6260 (&q->q_usage_counter(queue)#20){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
stack backtrace:
CPU: 0 UID: 0 PID: 5939 Comm: syz-executor170 Not tainted 6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079
check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain kernel/locking/lockdep.c:3909 [inline]
__lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
__mutex_lock_common kernel/locking/mutex.c:601 [inline]
__mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
loop_set_size drivers/block/loop.c:211 [inline]
loop_set_size drivers/block/loop.c:208 [inline]
loop_set_status+0x9c7/0xb90 drivers/block/loop.c:1306
loop_set_status_old+0x162/0x1d0 drivers/block/loop.c:1405
lo_ioctl+0x695/0x26d0 drivers/block/loop.c:1575
blkdev_ioctl+0x274/0x6d0 block/ioctl.c:698
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5b0284a229
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeda6302f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffeda6304c8 RCX: 00007f5b0284a229
RDX: 0000200000000080 RSI: 0000000000004c02 RDI: 0000000000000003
RBP: 00007f5b028bd610 R08: 00007ffeda6304c8 R09: 00007ffeda6304c8
R10: 00007ffeda6304c8 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeda6304b8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
final repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 Not tainted
------------------------------------------------------
syz-executor170/5939 is trying to acquire lock:
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
ffffffff906953a8 (uevent_sock_mutex){+.+.}-{4:4}, at: kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
but task is already holding lock:
ffff888025aa6228 (&q->q_usage_counter(io)#24){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&q->q_usage_counter(io)#24){++++}-{0:0}:
blk_alloc_queue+0x619/0x760 block/blk-core.c:461
blk_mq_alloc_queue+0x179/0x290 block/blk-mq.c:4349
__blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4396
loop_add+0x496/0xb70 drivers/block/loop.c:2067
loop_init+0x164/0x270 drivers/block/loop.c:2302
do_one_initcall+0x120/0x6e0 init/main.c:1257
do_initcall_level init/main.c:1319 [inline]
do_initcalls init/main.c:1335 [inline]
do_basic_setup init/main.c:1354 [inline]
kernel_init_freeable+0x5c2/0x900 init/main.c:1567
kernel_init+0x1c/0x2b0 init/main.c:1457
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
-> #1 (fs_reclaim){+.+.}-{0:0}:
__fs_reclaim_acquire mm/page_alloc.c:4028 [inline]
fs_reclaim_acquire+0x102/0x150 mm/page_alloc.c:4042
might_alloc include/linux/sched/mm.h:318 [inline]
slab_pre_alloc_hook mm/slub.c:4102 [inline]
slab_alloc_node mm/slub.c:4180 [inline]
kmem_cache_alloc_node_noprof+0x57/0x3b0 mm/slub.c:4252
__alloc_skb+0x2b2/0x380 net/core/skbuff.c:658
alloc_skb include/linux/skbuff.h:1340 [inline]
alloc_uevent_skb+0x7d/0x210 lib/kobject_uevent.c:289
uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xca4/0x1870 lib/kobject_uevent.c:608
kobject_synth_uevent+0x7d4/0x8a0 lib/kobject_uevent.c:207
bus_uevent_store+0x3d/0x90 drivers/base/bus.c:832
bus_attr_store+0x71/0xb0 drivers/base/bus.c:172
sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145
kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334
new_sync_write fs/read_write.c:591 [inline]
vfs_write+0x5ba/0x1180 fs/read_write.c:684
ksys_write+0x12a/0x240 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (uevent_sock_mutex){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain kernel/locking/lockdep.c:3909 [inline]
__lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
__mutex_lock_common kernel/locking/mutex.c:601 [inline]
__mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
loop_set_size drivers/block/loop.c:211 [inline]
loop_set_size drivers/block/loop.c:208 [inline]
loop_set_status+0x9c7/0xb90 drivers/block/loop.c:1306
loop_set_status_old+0x162/0x1d0 drivers/block/loop.c:1405
lo_ioctl+0x695/0x26d0 drivers/block/loop.c:1575
blkdev_ioctl+0x274/0x6d0 block/ioctl.c:698
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
uevent_sock_mutex --> fs_reclaim --> &q->q_usage_counter(io)#24
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&q->q_usage_counter(io)#24);
lock(fs_reclaim);
lock(&q->q_usage_counter(io)#24);
lock(uevent_sock_mutex);
*** DEADLOCK ***
3 locks held by syz-executor170/5939:
#0: ffff888025c4fb68 (&lo->lo_mutex){+.+.}-{4:4}, at: loop_set_status+0x2a/0xb90 drivers/block/loop.c:1275
#1: ffff888025aa6228 (&q->q_usage_counter(io)#24){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
#2: ffff888025aa6260 (&q->q_usage_counter(queue)#20){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215
stack backtrace:
CPU: 0 UID: 0 PID: 5939 Comm: syz-executor170 Not tainted 6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079
check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211
check_prev_add kernel/locking/lockdep.c:3166 [inline]
check_prevs_add kernel/locking/lockdep.c:3285 [inline]
validate_chain kernel/locking/lockdep.c:3909 [inline]
__lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235
lock_acquire kernel/locking/lockdep.c:5866 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823
__mutex_lock_common kernel/locking/mutex.c:601 [inline]
__mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746
uevent_net_broadcast_untagged lib/kobject_uevent.c:317 [inline]
kobject_uevent_net_broadcast lib/kobject_uevent.c:410 [inline]
kobject_uevent_env+0xb36/0x1870 lib/kobject_uevent.c:608
loop_set_size drivers/block/loop.c:211 [inline]
loop_set_size drivers/block/loop.c:208 [inline]
loop_set_status+0x9c7/0xb90 drivers/block/loop.c:1306
loop_set_status_old+0x162/0x1d0 drivers/block/loop.c:1405
lo_ioctl+0x695/0x26d0 drivers/block/loop.c:1575
blkdev_ioctl+0x274/0x6d0 block/ioctl.c:698
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl fs/ioctl.c:892 [inline]
__x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5b0284a229
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeda6302f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffeda6304c8 RCX: 00007f5b0284a229
RDX: 0000200000000080 RSI: 0000000000004c02 RDI: 0000000000000003
RBP: 00007f5b028bd610 R08: 00007ffeda6304c8 R09: 00007ffeda6304c8
R10: 00007ffeda6304c8 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffeda6304b8 R14: 0000000000000001 R15: 0000000000000001
</TASK>