syz-executor169[8153]: segfault at 0 ip 0000000000000000 sp 00000000200000c8 error 14
Code: Bad RIP value.
WARNING: CPU: 1 PID: 8211 at fs/buffer.c:1087 mark_buffer_dirty+0x464/0x5c0 fs/buffer.c:1087
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8211 Comm: syz-executor169 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
panic+0x26a/0x50e kernel/panic.c:186
__warn.cold+0x20/0x5a kernel/panic.c:541
report_bug+0x262/0x2b0 lib/bug.c:183
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:mark_buffer_dirty+0x464/0x5c0 fs/buffer.c:1087
Code: c1 ea 03 80 3c 02 00 0f 85 6c 01 00 00 48 8b 3b be 04 00 00 00 e8 3c 7b fd ff 5b 5d 41 5c 41 5d e9 c1 34 b2 ff e8 bc 34 b2 ff <0f> 0b e9 d6 fb ff ff e8 b0 34 b2 ff 0f 0b e9 fa fb ff ff e8 a4 34
RSP: 0018:ffff888091db7880 EFLAGS: 00010293
RAX: ffff8880b13582c0 RBX: ffff888089b6fa80 RCX: ffffffff81b04c88
RDX: 0000000000000000 RSI: ffffffff81b050b4 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888091d78140
R13: ffffed10123af04d R14: ffff888089b6fa80 R15: 0000000000000015
bfs_move_block fs/bfs/file.c:43 [inline]
bfs_move_blocks fs/bfs/file.c:56 [inline]
bfs_get_block+0x3b6/0xd00 fs/bfs/file.c:125
__block_write_begin_int+0x46c/0x17b0 fs/buffer.c:1978
__block_write_begin fs/buffer.c:2028 [inline]
block_write_begin+0x58/0x2e0 fs/buffer.c:2087
bfs_write_begin+0x35/0xd0 fs/bfs/file.c:177
generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
__generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
call_write_iter include/linux/fs.h:1821 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x51b/0x770 fs/read_write.c:487
vfs_write+0x1f3/0x540 fs/read_write.c:549
ksys_write+0x12b/0x2a0 fs/read_write.c:599
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f8af71062b9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffcb05fca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8af71062b9
RDX: 000000000208e24b RSI: 0000000020000080 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fffcb05fcd0 R09: 00007fffcb05fcd0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffcb05fccc
R13: 00007fffcb05fd00 R14: 00007fffcb05fce0 R15: 0000000000000014
Kernel Offset: disabled
Rebooting in 86400 seconds..