WARNING in mark_buffer

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in mark_buffer_dirty bfs	-1	syz, C		error	10	1342d	1687d	0/1	upstream: reported C repro on 2022/01/20 22:23
upstream	WARNING in mark_buffer_dirty (6) fs	-1	syz, C	error		11669	486d	1053d	28/29	fixed on 2025/05/06 15:33
upstream	WARNING in mark_buffer_dirty (4) bfs nilfs	-1	syz, C	inconclusive		1152	1184d	1523d	22/29	fixed on 2023/06/08 14:41
android-44	WARNING in mark_buffer_dirty	-1				2	2802d	2700d	0/2	auto-closed as invalid on 2019/07/01 11:44
upstream	WARNING in mark_buffer_dirty fs	-1	syz, C			21	2831d	3214d	0/29	closed as invalid on 2019/07/24 04:22
linux-4.14	WARNING in mark_buffer_dirty (2) nilfs2	-1	syz, C		error	8	1284d	1667d	0/1	upstream: reported C repro on 2022/02/10 08:17
upstream	WARNING in mark_buffer_dirty (2) ext4	-1				665	2333d	2466d	0/29	auto-closed as invalid on 2020/07/14 01:44
linux-6.6	WARNING in mark_buffer_dirty origin:lts-only	-1	syz, C		inconclusive	383	167d	419d	0/2	upstream: reported C repro on 2025/07/12 17:25
upstream	WARNING in mark_buffer_dirty (5) nilfs	-1	syz, C	done		172	1060d	1180d	23/29	fixed on 2023/10/12 12:48
upstream	WARNING in mark_buffer_dirty (7) prio:low bfs	-1	syz, C	error	error	1012	163d	482d	0/29	upstream: reported C repro on 2025/05/10 17:11
upstream	WARNING in mark_buffer_dirty (3) ext4	-1				2	2015d	2028d	0/29	auto-closed as invalid on 2021/06/27 09:01
android-49	WARNING in mark_buffer_dirty	-1				7	2647d	2700d	0/3	auto-closed as invalid on 2019/10/25 08:47
linux-5.15	WARNING in mark_buffer_dirty origin:upstream	-1	syz, C		error	301	165d	1268d	0/3	upstream: reported C repro on 2023/03/15 22:22
linux-6.1	WARNING in mark_buffer_dirty origin:lts-only	-1	syz, C		inconclusive	376	170d	1271d	0/3	upstream: reported C repro on 2023/03/13 14:09

------------[ cut here ]------------ WARNING: CPU: 1 PID: 7550 at fs/buffer.c:1149 mark_buffer_dirty+0x369/0x4a0 fs/buffer.c:1149 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7550 Comm: syz-executor.1 Not tainted 4.14.163-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x2f/0x2f kernel/panic.c:547 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:mark_buffer_dirty+0x369/0x4a0 fs/buffer.c:1149 RSP: 0018:ffff88804d5ef878 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff88808fd95c78 RCX: ffffc90007035000 RDX: 00000000000035de RSI: ffffffff819b7029 RDI: ffff88808fd95c78 RBP: ffff88804d5ef898 R08: ffffed1009f96500 R09: 0000000000000000 R10: ffffed1009f964ff R11: ffff88804fcb27ff R12: ffff888094385d20 R13: ffff888077644780 R14: ffffed100eec8915 R15: ffff88808fd95c78 bfs_move_block fs/bfs/file.c:43 [inline] bfs_move_blocks fs/bfs/file.c:56 [inline] bfs_get_block+0x356/0xb50 fs/bfs/file.c:125 __block_write_begin_int+0x396/0x1100 fs/buffer.c:2027 __block_write_begin fs/buffer.c:2077 [inline] block_write_begin+0x5f/0x280 fs/buffer.c:2136 bfs_write_begin+0x3a/0xc0 fs/bfs/file.c:177 generic_perform_write+0x1f8/0x480 mm/filemap.c:3047 __generic_file_write_iter+0x239/0x5b0 mm/filemap.c:3172 generic_file_write_iter+0x303/0x660 mm/filemap.c:3200 call_write_iter include/linux/fs.h:1777 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x4a7/0x6b0 fs/read_write.c:482 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45af49 RSP: 002b:00007fcf0c9bac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49 RDX: 0000000008800000 RSI: 0000000020000240 RDI: 0000000000000006 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf0c9bb6d4 R13: 00000000004cccb2 R14: 00000000004e8000 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..