Extracting prog: 7m2.052497673s Minimizing prog: 34m10.023086639s Simplifying prog options: 22m15.607298939s Extracting C: 5m13.039156202s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program crashed: WARNING in hci_conn_timeout single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(0x0, 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=6m41.838426075s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash validation run: crashed=false testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash validation run: crashed=false testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash validation run: crashed=false testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program crashed: WARNING in hci_conn_timeout validation run: crashed=true testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program crashed: WARNING in hci_conn_timeout validation run: crashed=true testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program did not crash validation run: crashed=false testing program (duration=6m41.838426075s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_emit_vhci-syz_emit_vhci detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853"], 0x22) syz_emit_vhci(&(0x7f0000000280)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x9, 0x0, 0x2016}}}, 0x7) program crashed: WARNING in hci_conn_timeout validation run: crashed=true reproducing took 1h48m6.030100447s repro crashed as (corrupted=false): Bluetooth: hci13: Ignoring HCI_Connection_Complete for existing connection ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6001 at net/bluetooth/hci_conn.c:568 hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568 Modules linked in: CPU: 1 UID: 0 PID: 6001 Comm: kworker/u9:6 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: hci13 hci_conn_timeout RIP: 0010:hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568 Code: 48 89 df e8 53 fb 08 00 eb 07 e8 8c 9c 51 f7 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 67 cb fe ff e8 72 9c 51 f7 90 <0f> 0b 90 eb 8c 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 31 ff ff ff RSP: 0018:ffffc90003597a50 EFLAGS: 00010293 RAX: ffffffff8a6e96fe RBX: ffff88805b34c000 RCX: ffff888025cc0000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffff88805b34c013 R09: 1ffff1100b669802 R10: dffffc0000000000 R11: ffffed100b669803 R12: dffffc0000000000 R13: ffff8880341b3d18 R14: ffff88805b34c948 R15: ffff88805b34c010 FS: 0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f37818b0f98 CR3: 00000000776d4000 CR4: 00000000003526f0 Call Trace: process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 final repro crashed as (corrupted=false): Bluetooth: hci13: Ignoring HCI_Connection_Complete for existing connection ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6001 at net/bluetooth/hci_conn.c:568 hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568 Modules linked in: CPU: 1 UID: 0 PID: 6001 Comm: kworker/u9:6 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: hci13 hci_conn_timeout RIP: 0010:hci_conn_timeout+0xff/0x290 net/bluetooth/hci_conn.c:568 Code: 48 89 df e8 53 fb 08 00 eb 07 e8 8c 9c 51 f7 b0 13 0f b6 f0 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 67 cb fe ff e8 72 9c 51 f7 90 <0f> 0b 90 eb 8c 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 31 ff ff ff RSP: 0018:ffffc90003597a50 EFLAGS: 00010293 RAX: ffffffff8a6e96fe RBX: ffff88805b34c000 RCX: ffff888025cc0000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffff88805b34c013 R09: 1ffff1100b669802 R10: dffffc0000000000 R11: ffffed100b669803 R12: dffffc0000000000 R13: ffff8880341b3d18 R14: ffff88805b34c948 R15: ffff88805b34c010 FS: 0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f37818b0f98 CR3: 00000000776d4000 CR4: 00000000003526f0 Call Trace: process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245