------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:6010! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4315 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:ffffc9000333f9c0 EFLAGS: 00010293 RAX: ffffffff83122f27 RBX: ffff88805cdafa00 RCX: ffff88807bbc1dc0 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc9000333fbd0 R08: dffffc0000000000 R09: fffff52000667f21 R10: fffff52000667f21 R11: 1ffff92000667f20 R12: 00000000ffffffff R13: ffff88805f7e4fb8 R14: ffff888074f74000 R15: ffff88806061a000 FS: 00005555663e3500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdaaf2a4b84 CR3: 000000005d3dd000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_flush_truncate_log fs/ocfs2/alloc.c:6075 [inline] ocfs2_truncate_log_shutdown+0x13e/0x2e0 fs/ocfs2/alloc.c:6319 ocfs2_dismount_volume+0x1e6/0x880 fs/ocfs2/super.c:1887 generic_shutdown_super+0x130/0x300 fs/super.c:475 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 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fed3e699c57 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd468e3528 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fed3e71a925 RCX: 00007fed3e699c57 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd468e35e0 RBP: 00007ffd468e35e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd468e4670 R13: 00007fed3e71a925 R14: 000000000001a964 R15: 00007ffd468e46b0 Modules linked in: ---[ end trace edc4bee014d8a9e7 ]--- 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:ffffc9000333f9c0 EFLAGS: 00010293 RAX: ffffffff83122f27 RBX: ffff88805cdafa00 RCX: ffff88807bbc1dc0 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc9000333fbd0 R08: dffffc0000000000 R09: fffff52000667f21 R10: fffff52000667f21 R11: 1ffff92000667f20 R12: 00000000ffffffff R13: ffff88805f7e4fb8 R14: ffff888074f74000 R15: ffff88806061a000 FS: 00005555663e3500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559aa80e6000 CR3: 000000005d3dd000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400