watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor5:7346]
Modules linked in:
CPU: 1 PID: 7346 Comm: syz-executor5 Not tainted 4.19.0-rc1+ #40
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x15/0x50 kernel/kcov.c:101
Code: 41 5d 41 5e 41 5f 5d c3 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 04 24 65 48 8b 0c 25 80 fc 02 00 65 8b 14 25 94 fc 02 00 <f7> c2 00 01 1f 00 75 2c 8b 91 c0 18 00 00 83 fa 02 75 21 48 8b 91
RSP: 0018:ffff8801bde9f2d8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13
RAX: ffffffff815412f5 RBX: 0000000000000001 RCX: ffff8801c0d53b00
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea000a737ba0
RBP: ffff8801bde9f3c0 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff81179950 R12: ffff8801bde9f358
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c0d54400
FS:  0000000000fe4940(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f858e6b23d0 CR3: 000000013d29a000 CR4: 00000000001406e0
Call Trace:
 smp_call_function_many+0x658/0xdb0 kernel/smp.c:434
 on_each_cpu_mask kernel/smp.c:634 [inline]
 on_each_cpu_cond+0x322/0x3f0 kernel/smp.c:686
 invalidate_bh_lrus+0x54/0x60 fs/buffer.c:1400
 kill_bdev fs/block_dev.c:85 [inline]
 __blkdev_put+0x460/0xc90 fs/block_dev.c:1790
 blkdev_put+0x431/0x560 fs/block_dev.c:1858
 blkdev_close+0xa6/0xf0 fs/block_dev.c:1865
 __fput+0x4cf/0xc20 fs/file_table.c:278
 ____fput+0x37/0x40 fs/file_table.c:309
 task_work_run+0x22e/0x2b0 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x10ee/0x3890 kernel/exit.c:869
 do_group_exit+0x1a0/0x350 kernel/exit.c:972
 get_signal+0x1425/0x1ef0 kernel/signal.c:2513
 do_signal+0x11d/0x2060 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x273/0x410 arch/x86/entry/common.c:197
 syscall_return_slowpath+0xdb/0x700 arch/x86/entry/common.c:268
 do_syscall_64+0xde/0x100 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457099
Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:0000000000a3fc18 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00000000000007ff RCX: 0000000000457099
RDX: 0000000000000000 RSI: 0000000000000081 RDI: 00000000009300a8
RBP: 00000000009300a0 R08: 0000000000000000 R09: ffffffffffffffff
R10: 00000000009300a0 R11: 0000000000000246 R12: 00000000009300ac
R13: 00000000009300ac R14: 0000000000000003 R15: 0000000000000000
Sending NMI from CPU 1 to CPUs 0:
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan_entry.c:81!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 7352 Comm: syz-executor2 Not tainted 4.19.0-rc1+ #40
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80
Code: 00 74 27 65 8b 04 25 40 92 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 40 92 03 00 65 c6 04 25 d5 6f 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e
RSP: 0018:fffffe000000eea8 EFLAGS: 00010046
RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101
RDX: 00000000ffff8802 RSI: ffffffff8900136c RDI: ffff880124279000
RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000001238b6000 R15: 0000000000000000
FS:  00007fb5e3a98700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffffd8e4a09 CR3: 00000001238b6000 CR4: 00000000001406f0
Call Trace:
 <NMI>
 </NMI>
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 3afef9ec937d137d ]---
RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80
Code: 00 74 27 65 8b 04 25 40 92 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 40 92 03 00 65 c6 04 25 d5 6f 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e
RSP: 0018:fffffe000000eea8 EFLAGS: 00010046
RAX: 0000000000000200 RBX: 0000000000000001 RCX: 00000000c0000101
RDX: 00000000ffff8802 RSI: ffffffff8900136c RDI: ffff880124279000
RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000001238b6000 R15: 0000000000000000
FS:  00007fb5e3a98700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffffd8e4a09 CR3: 00000001238b6000 CR4: 00000000001406f0