------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1180! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7841 Comm: syz.2.504 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1d5f/0x1d80 fs/ocfs2/aops.c:1241 Code: 00 00 48 c7 c6 24 da 85 8c ba 7f 04 00 00 48 c7 c1 80 9b 09 8b e8 a1 0e 1b 00 48 8b 44 24 08 c6 40 1e f8 0f 0b e8 f1 f3 33 fe <0f> 0b e8 ea f3 33 fe 0f 0b e8 e3 f3 33 fe 0f 0b e8 dc f3 33 fe 0f RSP: 0018:ffffc9000bf16460 EFLAGS: 00010246 RAX: ffffffff83531f2f RBX: ffff88805bed4014 RCX: 0000000000080000 RDX: ffffc9000d43b000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000bf16790 R08: ffff888077ae8723 R09: 1ffff1100ef5d0e4 R10: dffffc0000000000 R11: ffffed100ef5d0e5 R12: ffff88806b6b8000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88805bed4014 FS: 00007f61ceade6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d211ff8 CR3: 000000007a2f3000 CR4: 00000000003506f0 Call Trace: ocfs2_write_begin_nolock+0x308d/0x43f0 fs/ocfs2/aops.c:1817 ocfs2_dio_wr_get_block+0xbba/0x1820 fs/ocfs2/aops.c:2239 get_more_blocks fs/direct-io.c:647 [inline] do_direct_IO fs/direct-io.c:935 [inline] __blockdev_direct_IO+0x1775/0x3500 fs/direct-io.c:1248 ocfs2_direct_IO+0x235/0x2a0 fs/ocfs2/aops.c:2468 generic_file_direct_write+0x1d4/0x3e0 mm/filemap.c:3956 __generic_file_write_iter+0x11b/0x230 mm/filemap.c:4112 ocfs2_file_write_iter+0x167a/0x1e80 fs/ocfs2/file.c:2468 do_iter_readv_writev fs/read_write.c:-1 [inline] do_iter_write+0x738/0xc30 fs/read_write.c:860 iter_file_splice_write+0x6a3/0xcb0 fs/splice.c:736 do_splice_from fs/splice.c:933 [inline] direct_splice_actor+0xe8/0x130 fs/splice.c:1142 splice_direct_to_actor+0x304/0x8c0 fs/splice.c:1088 do_splice_direct+0x1d5/0x2f0 fs/splice.c:1194 do_sendfile+0x5f2/0xef0 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x145/0x1a0 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f61cdb9aeb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f61ceade028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f61cde15fa0 RCX: 00007f61cdb9aeb9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00007f61cdc08c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f61cde16038 R14: 00007f61cde15fa0 R15: 00007ffe46920e08 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1d5f/0x1d80 fs/ocfs2/aops.c:1241 Code: 00 00 48 c7 c6 24 da 85 8c ba 7f 04 00 00 48 c7 c1 80 9b 09 8b e8 a1 0e 1b 00 48 8b 44 24 08 c6 40 1e f8 0f 0b e8 f1 f3 33 fe <0f> 0b e8 ea f3 33 fe 0f 0b e8 e3 f3 33 fe 0f 0b e8 dc f3 33 fe 0f RSP: 0018:ffffc9000bf16460 EFLAGS: 00010246 RAX: ffffffff83531f2f RBX: ffff88805bed4014 RCX: 0000000000080000 RDX: ffffc9000d43b000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000bf16790 R08: ffff888077ae8723 R09: 1ffff1100ef5d0e4 R10: dffffc0000000000 R11: ffffed100ef5d0e5 R12: ffff88806b6b8000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88805bed4014 FS: 00007f61ceade6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d1fbff8 CR3: 000000007a2f3000 CR4: 00000000003506e0