wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.3:26497 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28592 26497 8117 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_acct kernel/acct.c:285 [inline] __se_sys_acct+0x8c/0x930 kernel/acct.c:273 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f095000e8d9 Code: Bad RIP value. RSP: 002b:00007f094d585188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 RAX: ffffffffffffffda RBX: 00007f0950112f60 RCX: 00007f095000e8d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f0950068cb4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6722e57f R14: 00007f094d585300 R15: 0000000000022000 INFO: task syz-executor.3:26503 blocked for more than 140 seconds. Not tainted 4.19.208-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D26896 26503 8117 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 __do_sys_acct kernel/acct.c:285 [inline] __se_sys_acct+0x8c/0x930 kernel/acct.c:273 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f095000e8d9 Code: Bad RIP value. RSP: 002b:00007f094d564188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 RAX: ffffffffffffffda RBX: 00007f0950113020 RCX: 00007f095000e8d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100 RBP: 00007f0950068cb4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6722e57f R14: 00007f094d564300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1571: #0: 00000000395d98bc (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7798: #0: 0000000070e7dbba (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 1 lock held by syz-executor.4/23383: #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline] #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 kernel/acct.c:273 1 lock held by syz-executor.3/26497: #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline] #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 kernel/acct.c:273 1 lock held by syz-executor.3/26503: #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline] #0: 0000000034bd6a66 (acct_on_mutex){+.+.}, at: __se_sys_acct+0x8c/0x930 kernel/acct.c:273 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.208-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: rcu_preempt Not tainted 4.19.208-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x1f6/0x3c0 kernel/locking/lockdep.c:3912 Code: 03 80 3c 10 00 0f 85 b7 01 00 00 48 83 3d f9 2e a6 08 00 0f 84 2a 01 00 00 48 8b 7c 24 08 57 9d 0f 1f 44 00 00 48 83 c4 18 5b <5d> 41 5c 41 5d 41 5e 41 5f c3 65 8b 05 79 2d b6 7e 83 f8 07 0f 87 RSP: 0018:ffff8880b5a67b00 EFLAGS: 00000082 RAX: 1ffffffff13e3051 RBX: 000000000bc00000 RCX: 00000000000037ae RDX: dffffc0000000000 RSI: 00000000f433c532 RDI: 0000000000000086 RBP: ffff8880ba022b58 R08: ffffffff8cd332b0 R09: 0000000000000000 R10: ffff8880b5a4eb08 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbf0a340000 CR3: 00000000a1180000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152 lock_timer_base+0x55/0x1b0 kernel/time/timer.c:950 try_to_del_timer_sync+0x7a/0x110 kernel/time/timer.c:1237 del_timer_sync+0x1a4/0x270 kernel/time/timer.c:1305 schedule_timeout+0x4d7/0xfe0 kernel/time/timer.c:1819 rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 ---------------- Code disassembly (best guess): 0: 03 80 3c 10 00 0f add 0xf00103c(%rax),%eax 6: 85 b7 01 00 00 48 test %esi,0x48000001(%rdi) c: 83 3d f9 2e a6 08 00 cmpl $0x0,0x8a62ef9(%rip) # 0x8a62f0c 13: 0f 84 2a 01 00 00 je 0x143 19: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi 1e: 57 push %rdi 1f: 9d popfq 20: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 25: 48 83 c4 18 add $0x18,%rsp 29: 5b pop %rbx * 2a: 5d pop %rbp <-- trapping instruction 2b: 41 5c pop %r12 2d: 41 5d pop %r13 2f: 41 5e pop %r14 31: 41 5f pop %r15 33: c3 retq 34: 65 8b 05 79 2d b6 7e mov %gs:0x7eb62d79(%rip),%eax # 0x7eb62db4 3b: 83 f8 07 cmp $0x7,%eax 3e: 0f .byte 0xf 3f: 87 .byte 0x87