------------[ cut here ]------------
kernel BUG at fs/buffer.c:3027!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 649 Comm: syz-executor.0 Not tainted 5.4.197-syzkaller-00015-gf0306959ab7c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:submit_bh_wbc+0x76e/0x790 fs/buffer.c:3027
Code: 08 80 e1 07 80 c1 03 38 c1 0f 8c be fe ff ff 48 8b 7c 24 08 e8 13 98 ee ff e9 af fe ff ff e8 d9 2e c2 ff 0f 0b e8 d2 2e c2 ff <0f> 0b e8 cb 2e c2 ff 0f 0b e8 c4 2e c2 ff 0f 0b e8 bd 2e c2 ff 0f
RSP: 0018:ffff8881ea2cfa80 EFLAGS: 00010293
RAX: ffffffff819e259e RBX: 0000000000000000 RCX: ffff8881e9b28000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1103b3a86bd R08: ffffffff819e1ec9 R09: ffffed103b3a86be
R10: ffffed103b3a86be R11: 1ffff1103b3a86bd R12: 0000000000000000
R13: ffff8881d9d435e8 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fdc5bcae700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f01cf96b718 CR3: 00000001ef6f7000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 submit_bh fs/buffer.c:3076 [inline]
 __bread_slow fs/buffer.c:1178 [inline]
 __bread_gfp+0x181/0x310 fs/buffer.c:1371
 sb_bread_unmovable include/linux/buffer_head.h:315 [inline]
 ext4_fill_super+0x795/0x88c0 fs/ext4/super.c:3763
 mount_bdev+0x22d/0x340 fs/super.c:1417
 legacy_get_tree+0xde/0x170 fs/fs_context.c:647
 vfs_get_tree+0x85/0x260 fs/super.c:1547
 do_new_mount+0x23a/0x500 fs/namespace.c:2843
 do_mount+0x5e2/0xcd0 fs/namespace.c:3163
 ksys_mount+0xc2/0xf0 fs/namespace.c:3372
 __do_sys_mount fs/namespace.c:3386 [inline]
 __se_sys_mount fs/namespace.c:3383 [inline]
 __x64_sys_mount+0xb1/0xc0 fs/namespace.c:3383
 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fdc5bd5a7aa
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc5bcadf88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fdc5bd5a7aa
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fdc5bcadfe0
RBP: 00007fdc5bcae020 R08: 00007fdc5bcae020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fdc5bcadfe0 R15: 0000000020013c00
Modules linked in:
---[ end trace 5fbb857c866b3181 ]---
RIP: 0010:submit_bh_wbc+0x76e/0x790 fs/buffer.c:3027
Code: 08 80 e1 07 80 c1 03 38 c1 0f 8c be fe ff ff 48 8b 7c 24 08 e8 13 98 ee ff e9 af fe ff ff e8 d9 2e c2 ff 0f 0b e8 d2 2e c2 ff <0f> 0b e8 cb 2e c2 ff 0f 0b e8 c4 2e c2 ff 0f 0b e8 bd 2e c2 ff 0f
RSP: 0018:ffff8881ea2cfa80 EFLAGS: 00010293
RAX: ffffffff819e259e RBX: 0000000000000000 RCX: ffff8881e9b28000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff1103b3a86bd R08: ffffffff819e1ec9 R09: ffffed103b3a86be
R10: ffffed103b3a86be R11: 1ffff1103b3a86bd R12: 0000000000000000
R13: ffff8881d9d435e8 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007fdc5bcae700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f01cf96b718 CR3: 00000001ef6f7000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400