dccp_v6_rcv: dropped packet with invalid checksum watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [blkid:8478] Modules linked in: CPU: 1 PID: 8478 Comm: blkid Not tainted 4.18.0-rc8+ #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr_nodebug arch/x86/include/asm/page_64.h:23 [inline] RIP: 0010:msan_get_shadow_origin_ptr+0x281/0x2e0 mm/kmsan/kmsan_instr.c:287 Code: 89 da 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b9 ff ff ff 7f ff ff ff ff 49 39 cf 76 0a 48 8b 0c 25 10 60 83 89 eb 0a <48> b9 00 00 00 80 ff 77 00 00 48 01 c1 48 c1 e9 0c 48 8d 04 49 48 RSP: 0018:ffff880126bdf750 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: ffff8801a6bdf838 RBX: ffffffff8a1af000 RCX: ffffffff7fffffff RDX: 0000000000000480 RSI: 0000000000000000 RDI: ffff880126bdf838 RBP: ffff880126bdf7a0 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81174df0 R12: 0000000000000004 R13: ffff880136cdbb00 R14: ffffffff8a1ae000 R15: ffff880126bdf838 FS: 00007f5dd11dd740(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000022bc008 CR3: 00000001af8a8000 CR4: 00000000001406e0 Call Trace: __msan_metadata_ptr_for_load_4+0x10/0x20 mm/kmsan/kmsan_instr.c:349 csd_lock_wait kernel/smp.c:108 [inline] smp_call_function_single+0x373/0x4e0 kernel/smp.c:302 smp_call_function_many+0x658/0xdb0 kernel/smp.c:434 on_each_cpu_mask kernel/smp.c:632 [inline] on_each_cpu_cond+0x322/0x3f0 kernel/smp.c:684 invalidate_bh_lrus+0x54/0x60 fs/buffer.c:1392 kill_bdev fs/block_dev.c:85 [inline] __blkdev_put+0x3bf/0xcb0 fs/block_dev.c:1788 blkdev_put+0x431/0x560 fs/block_dev.c:1856 blkdev_close+0xa6/0xf0 fs/block_dev.c:1863 __fput+0x458/0xa30 fs/file_table.c:209 ____fput+0x37/0x40 fs/file_table.c:243 task_work_run+0x22e/0x2b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:192 [inline] exit_to_usermode_loop arch/x86/entry/common.c:166 [inline] prepare_exit_to_usermode+0x339/0x410 arch/x86/entry/common.c:197 syscall_return_slowpath+0xdb/0x700 arch/x86/entry/common.c:268 do_syscall_64+0x1ab/0x220 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x7f5dd0ae52b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007ffeab5919d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5dd0ae52b0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000028 R09: 0000000001680000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000022b3030 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000005 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: 8486 Comm: syz-executor7 Not tainted 4.18.0-rc8+ #34 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 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 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: ffffffff88c0136c RDI: ffff880127b8a000 RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000126272000 R15: 0000000000000000 FS: 00007fdacff4c700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdc0b8eb00 CR3: 0000000126272000 CR4: 00000000001406f0 Call Trace: Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 7c60a5325652b9b0 ]--- RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80 Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 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: ffffffff88c0136c RDI: ffff880127b8a000 RBP: fffffe000000eef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000126272000 R15: 0000000000000000 FS: 00007fdacff4c700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdc0b8eb00 CR3: 0000000126272000 CR4: 00000000001406f0