------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1161! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 14229 Comm: syz.8.700 Not tainted syzkaller #0 PREEMPT[ 522.282372][T14229] CPU: 1 UID: 0 PID: 14229 Comm: syz.8.700 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1161 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221 Code: 48 c7 c6 01 c9 67 8d ba 6c 04 00 00 48 c7 c1 a0 58 92 8b e8 fb 3e 1d 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 aa a5 0c fe 90 <0f> 0b e8 a2 a5 0c fe 90 0f 0b e8 9a a5 0c fe 90 0f 0b e8 92 a5 0c RSP: 0018:ffffc90004dae800 EFLAGS: 00010283 RAX: ffffffff83b84536 RBX: ffff88805e334d30 RCX: 0000000000080000 RDX: ffffc90005581000 RSI: 000000000007b357 RDI: 000000000007b358 RBP: ffffc90004daeb50 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f12ebf R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888026a80014 R15: 0000000000000000 FS: 00007f7a7fd9e6c0(0000) GS:ffff88812624d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc94cb55f40 CR3: 0000000089ab0000 CR4: 00000000003526f0 Call Trace: ocfs2_write_begin_nolock+0x3346/0x41f0 fs/ocfs2/aops.c:1797 ocfs2_dio_wr_get_block+0xbab/0x17c0 fs/ocfs2/aops.c:2215 get_more_blocks fs/direct-io.c:644 [inline] do_direct_IO fs/direct-io.c:932 [inline] __blockdev_direct_IO+0x1965/0x33d0 fs/direct-io.c:1236 ocfs2_direct_IO+0x24b/0x2c0 fs/ocfs2/aops.c:2455 generic_file_direct_write+0x1d1/0x3f0 mm/filemap.c:4270 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4439 ocfs2_file_write_iter+0x1709/0x1f20 fs/ocfs2/file.c:2476 do_iter_readv_writev+0x624/0x8d0 fs/read_write.c:-1 vfs_writev+0x34c/0x990 fs/read_write.c:1058 do_pwritev fs/read_write.c:1154 [inline] __do_sys_pwritev2 fs/read_write.c:1212 [inline] __se_sys_pwritev2+0x17a/0x2a0 fs/read_write.c:1203 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7a81b4ce59 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:00007f7a7fd9e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f7a81dc5fa0 RCX: 00007f7a81b4ce59 RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000005 RBP: 00007f7a81be2e6f R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000009c00 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7a81dc6038 R14: 00007f7a81dc5fa0 R15: 00007ffef3e627c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1161 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221 Code: 48 c7 c6 01 c9 67 8d ba 6c 04 00 00 48 c7 c1 a0 58 92 8b e8 fb 3e 1d 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 aa a5 0c fe 90 <0f> 0b e8 a2 a5 0c fe 90 0f 0b e8 9a a5 0c fe 90 0f 0b e8 92 a5 0c RSP: 0018:ffffc90004dae800 EFLAGS: 00010283 RAX: ffffffff83b84536 RBX: ffff88805e334d30 RCX: 0000000000080000 RDX: ffffc90005581000 RSI: 000000000007b357 RDI: 000000000007b358 RBP: ffffc90004daeb50 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f12ebf R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888026a80014 R15: 0000000000000000 FS: 00007f7a7fd9e6c0(0000) GS:ffff88812624d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1fc3821000 CR3: 0000000089ab0000 CR4: 00000000003526f0