------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:6010! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4559 Comm: syz-executor Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__ocfs2_flush_truncate_log+0xf37/0x1060 fs/ocfs2/alloc.c:6010 Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fc ff ff 4c 89 f7 e8 7a 0b ab fe e9 16 fc ff ff e8 00 93 65 fe 0f 0b e8 f9 92 65 fe <0f> 0b 65 8b 1d 28 e6 ef 7c bf 07 00 00 00 89 de e8 44 96 65 fe 83 RSP: 0018:ffffc9000130f920 EFLAGS: 00010293 RAX: ffffffff83122f27 RBX: ffff888072e71a00 RCX: ffff8880289ebb80 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc9000130fb38 R08: dffffc0000000000 R09: fffff52000261f0d R10: fffff52000261f0d R11: 1ffff92000261f0c R12: 00000000ffffffff R13: ffff88806213b338 R14: ffff88807cd9c000 R15: ffff8880631df000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53e0500000 CR3: 0000000022913000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_flush_truncate_log+0x4b/0x60 fs/ocfs2/alloc.c:6075 ocfs2_sync_fs+0x113/0x310 fs/ocfs2/super.c:403 sync_filesystem+0x1be/0x220 fs/sync.c:66 generic_shutdown_super+0x6b/0x300 fs/super.c:448 kill_block_super+0x7c/0xe0 fs/super.c:1427 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139 task_work_run+0x125/0x1a0 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x616/0x20a0 kernel/exit.c:874 do_group_exit+0x12e/0x300 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fd1a3b3e929 Code: Unable to access opcode bytes at RIP 0x7fd1a3b3e8ff. RSP: 002b:00007ffc26037838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fd1a3bc0997 RCX: 00007fd1a3b3e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000010 R08: 00007ffc260355d6 R09: 00007ffc26038af0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc26038af0 R13: 00007fd1a3bc0925 R14: 00005555572114a8 R15: 00007ffc26039bc0 Modules linked in: ---[ end trace 421bbc05b69215b0 ]--- RIP: 0010:__ocfs2_flush_truncate_log+0xf37/0x1060 fs/ocfs2/alloc.c:6010 Code: 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fc ff ff 4c 89 f7 e8 7a 0b ab fe e9 16 fc ff ff e8 00 93 65 fe 0f 0b e8 f9 92 65 fe <0f> 0b 65 8b 1d 28 e6 ef 7c bf 07 00 00 00 89 de e8 44 96 65 fe 83 RSP: 0018:ffffc9000130f920 EFLAGS: 00010293 RAX: ffffffff83122f27 RBX: ffff888072e71a00 RCX: ffff8880289ebb80 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc9000130fb38 R08: dffffc0000000000 R09: fffff52000261f0d R10: fffff52000261f0d R11: 1ffff92000261f0c R12: 00000000ffffffff R13: ffff88806213b338 R14: ffff88807cd9c000 R15: ffff8880631df000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53e04ed000 CR3: 000000006a394000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400