------------[ cut here ]------------ WARNING: CPU: 1 PID: 26246 at kernel/time/posix-timers.c:849 timer_wait_running+0x218/0x250 kernel/time/posix-timers.c:849 Modules linked in: CPU: 1 PID: 26246 Comm: syz-executor.5 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:timer_wait_running+0x218/0x250 kernel/time/posix-timers.c:849 Code: 00 48 c7 c2 e0 a9 4d 88 be 82 02 00 00 48 c7 c7 40 aa 4d 88 c6 05 9c e0 50 09 01 e8 17 50 f4 ff e9 b1 fe ff ff e8 c8 0c 0e 00 <0f> 0b e9 08 ff ff ff e8 0c 88 4e 00 e9 3b fe ff ff 4c 89 e7 e8 0f RSP: 0018:ffffc900099b7d58 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88808ecce000 RSI: ffffffff81666fc8 RDI: ffffffff884db698 RBP: ffff8880a1fd9040 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900099b7db8 R13: 0000000000000000 R14: ffffffff884db620 R15: ffffc900099b7db8 FS: 00007fbfcee5c700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000744138 CR3: 00000000a191e000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_timer_settime.part.0+0x119/0x1d0 kernel/time/posix-timers.c:929 do_timer_settime kernel/time/posix-timers.c:938 [inline] __do_sys_timer_settime kernel/time/posix-timers.c:952 [inline] __se_sys_timer_settime kernel/time/posix-timers.c:938 [inline] __x64_sys_timer_settime+0x219/0x310 kernel/time/posix-timers.c:938 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fbfcee5bc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000df RAX: ffffffffffffffda RBX: 00000000000361c0 RCX: 000000000045d5b9 RDX: 0000000020000300 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffcac4348ef R14: 00007fbfcee5c9c0 R15: 000000000118cf4c