kernel BUG at fs/ocfs2/alloc.c:6002! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3568 Comm: syz-executor Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__ocfs2_flush_truncate_log+0x1077/0x11c0 fs/ocfs2/alloc.c:6002 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 8a fb ff ff 48 89 df e8 4a 31 9a fe e9 7d fb ff ff e8 c0 66 50 fe 0f 0b e8 b9 66 50 fe <0f> 0b 65 44 8b 2d 97 21 d2 7c bf 07 00 00 00 44 89 ee e8 02 6a 50 RSP: 0018:ffffc90002cc78e0 EFLAGS: 00010293 RAX: ffffffff832ff3b7 RBX: 00000000ffffffff RCX: ffff88802611bb80 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90002cc7af0 R08: ffffffff832fe50e R09: fffff52000598f05 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002cc7a00 R13: ffff888060243338 R14: ffff8880661c7a00 R15: ffff888063d4f800 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce600eac0 CR3: 0000000028a1e000 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:6067 ocfs2_sync_fs+0x121/0x380 fs/ocfs2/super.c:403 sync_filesystem+0x1bc/0x220 fs/sync.c:66 generic_shutdown_super+0x6e/0x2c0 fs/super.c:448 kill_block_super+0x7a/0xe0 fs/super.c:1425 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 task_work_run+0x129/0x1a0 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x6a3/0x2480 kernel/exit.c:874 do_group_exit+0x144/0x310 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+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f0c238f1ff9 Code: Unable to access opcode bytes at RIP 0x7f0c238f1fcf. RSP: 002b:00007ffce6010bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0c239641a6 RCX: 00007f0c238f1ff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000010 R08: 00007ffce600e956 R09: 00007ffce6011e70 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce6011e70 R13: 00007f0c23964134 R14: 00005555597a64a8 R15: 00007ffce6012f30 Modules linked in: ---[ end trace 71a2ce9d99d16e5e ]--- RIP: 0010:__ocfs2_flush_truncate_log+0x1077/0x11c0 fs/ocfs2/alloc.c:6002 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 8a fb ff ff 48 89 df e8 4a 31 9a fe e9 7d fb ff ff e8 c0 66 50 fe 0f 0b e8 b9 66 50 fe <0f> 0b 65 44 8b 2d 97 21 d2 7c bf 07 00 00 00 44 89 ee e8 02 6a 50 RSP: 0018:ffffc90002cc78e0 EFLAGS: 00010293 RAX: ffffffff832ff3b7 RBX: 00000000ffffffff RCX: ffff88802611bb80 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90002cc7af0 R08: ffffffff832fe50e R09: fffff52000598f05 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90002cc7a00 R13: ffff888060243338 R14: ffff8880661c7a00 R15: ffff888063d4f800 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fa52e7b220 CR3: 0000000028a1e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400