------------[ cut here ]------------ WARNING: CPU: 0 PID: 6053 at fs/buffer.c:1188 mark_buffer_dirty+0x2bb/0x4d0 fs/buffer.c:1188 Modules linked in: CPU: 0 PID: 6053 Comm: syz.2.34 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:mark_buffer_dirty+0x2bb/0x4d0 fs/buffer.c:1188 Code: 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 bf ac fc ff e8 5a d8 89 ff 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 da 52 e8 ff e8 45 d8 89 ff <0f> 0b e9 84 fd ff ff e8 39 d8 89 ff 0f 0b e9 b0 fd ff ff e8 2d d8 RSP: 0018:ffffc900053c6d90 EFLAGS: 00010293 RAX: ffffffff81fbb87b RBX: ffff8880304a32b8 RCX: ffff888022c68000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffff8880781e7e01 R08: ffff8880304a32bf R09: 1ffff11006094657 R10: dffffc0000000000 R11: ffffed1006094658 R12: ffff8880257b0160 R13: 0000000000000200 R14: ffff88805b4bda00 R15: 0000000000000010 FS: 00007fc67ef526c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc67ef1d680 CR3: 000000002fbeb000 CR4: 00000000003506f0 Call Trace: bfs_move_block fs/bfs/file.c:43 [inline] bfs_move_blocks fs/bfs/file.c:56 [inline] bfs_get_block+0x593/0xa50 fs/bfs/file.c:125 __block_write_begin_int+0x566/0x1ad0 fs/buffer.c:2124 __block_write_begin fs/buffer.c:2173 [inline] block_write_begin+0x9a/0x1e0 fs/buffer.c:2234 bfs_write_begin+0x35/0xd0 fs/bfs/file.c:177 generic_perform_write+0x2fb/0x5b0 mm/filemap.c:4031 generic_file_write_iter+0xaf/0x2e0 mm/filemap.c:4152 __kernel_write_iter+0x274/0x670 fs/read_write.c:517 __kernel_write+0xf0/0x140 fs/read_write.c:537 __dump_emit+0x206/0x310 fs/coredump.c:882 writenote+0x1bf/0x2e0 fs/binfmt_elf.c:1529 write_note_info fs/binfmt_elf.c:2019 [inline] elf_core_dump+0x2d72/0x36e0 fs/binfmt_elf.c:2171 do_coredump+0x1755/0x2480 fs/coredump.c:833 get_signal+0x1133/0x1400 kernel/signal.c:2888 arch_do_signal_or_restart+0x9c/0x7b0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:315 exc_page_fault+0x8f/0x110 arch/x86/mm/fault.c:1524 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0x7fc67e18f751 Code: 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 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:00000000fffffeb0 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fc67e3e6180 RCX: 00007fc67e18f749 RDX: 0000000000000000 RSI: 00000000fffffeb0 RDI: 0000000002000400 RBP: 00007fc67e213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007fc67e3e6218 R14: 00007fc67e3e6180 R15: 00007fff16549c48