------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=2001 set at [] do_nanosleep+0x7e/0x6a0 kernel/time/hrtimer.c:-1 WARNING: kernel/sched/core.c:9191 at __might_sleep+0x92/0xf0 kernel/sched/core.c:9187, CPU#0: syz-executor/16429 Modules linked in: CPU: 0 UID: 0 PID: 16429 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:__might_sleep+0xac/0xf0 kernel/sched/core.c:9187 Code: 00 00 48 89 3c 24 41 89 f5 4c 8d 35 ee cc e6 0e 43 80 3c 3c 00 74 08 48 89 df e8 3f 4f a1 00 48 8b 0b 4c 89 f7 89 ee 48 89 ca <67> 48 0f b9 3a 44 89 ee 48 8b 3c 24 eb b5 44 89 f1 80 e1 07 80 c1 RSP: 0018:ffffc90000007c08 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807b66d728 RCX: ffffffff8be8fb5e RDX: ffffffff8be8fb5e RSI: 0000000000002001 RDI: ffffffff907d5e00 RBP: 0000000000002001 R08: 0000000000000100 R09: 1ffffffff20f4bef R10: dffffc0000000000 R11: fffffbfff20f4bf0 R12: 1ffff1100f6cdae5 R13: 00000000000011d1 R14: ffffffff907d5e00 R15: dffffc0000000000 FS: 000055558ff22500(0000) GS:ffff888124cca000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001a00 CR3: 0000000055f9c000 CR4: 00000000003526f0 Call Trace: __cancel_work_sync+0x6d/0x110 kernel/workqueue.c:4561 mmc_free_host+0x19/0x40 drivers/mmc/core/host.c:700 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:sched_submit_work kernel/sched/core.c:7342 [inline] RIP: 0010:schedule+0x116/0x2b0 kernel/sched/core.c:7375 Code: b6 44 2d 00 84 c0 0f 85 8e 01 00 00 41 f6 47 01 10 0f 85 dc 00 00 00 4c 8d bb 48 13 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 ff e8 40 49 50 f6 49 8b 3f 48 85 ff 74 0a be 01 00 00 RSP: 0018:ffffc90005377be8 EFLAGS: 00000246 RAX: 1ffff1100f6cda39 RBX: ffff88807b66be80 RCX: 0000000000000046 RDX: 000000000033bdbd RSI: ffffffff8e69f015 RDI: ffffffff8c6dac80 RBP: 1ffff1100f6cd7d3 R08: ffffffff8be79690 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff20f4bf0 R12: ffff88807b66beac R13: dffffc0000000000 R14: ffffffff8be79690 R15: ffff88807b66d1c8 do_nanosleep+0x21e/0x6a0 kernel/time/hrtimer.c:2436 hrtimer_nanosleep+0x18f/0x3a0 kernel/time/hrtimer.c:2482 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1406 [inline] __se_sys_clock_nanosleep+0x35b/0x3b0 kernel/time/posix-timers.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3e6995e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f3e69d4fd28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 000055558ff22500 RCX: 00007f3e6995e98e RDX: 00007f3e69d4fd80 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f3e69d4fdec R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001388 R13: 00000000000927c0 R14: 00000000000f6fe9 R15: 00007f3e69d4fe40 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 89 3c 24 mov %rdi,(%rsp) 6: 41 89 f5 mov %esi,%r13d 9: 4c 8d 35 ee cc e6 0e lea 0xee6ccee(%rip),%r14 # 0xee6ccfe 10: 43 80 3c 3c 00 cmpb $0x0,(%r12,%r15,1) 15: 74 08 je 0x1f 17: 48 89 df mov %rbx,%rdi 1a: e8 3f 4f a1 00 call 0xa14f5e 1f: 48 8b 0b mov (%rbx),%rcx 22: 4c 89 f7 mov %r14,%rdi 25: 89 ee mov %ebp,%esi 27: 48 89 ca mov %rcx,%rdx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 44 89 ee mov %r13d,%esi 32: 48 8b 3c 24 mov (%rsp),%rdi 36: eb b5 jmp 0xffffffed 38: 44 89 f1 mov %r14d,%ecx 3b: 80 e1 07 and $0x7,%cl 3e: 80 .byte 0x80 3f: c1 .byte 0xc1