UDF-fs: error (device loop0): udf_read_inode: (ino 1440) failed !bh UDF-fs: error (device loop0): udf_read_inode: (ino 1440) failed !bh BUG: unable to handle page fault for address: ffffed101f010249 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffef067 P4D 23ffef067 PUD 13fff6067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4510 Comm: syz-executor.0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:udf_close_lvid+0x14e/0x990 fs/udf/super.c:2108 Code: 0f 84 f7 00 00 00 4c 89 6c 24 20 49 8d bd c0 00 00 00 48 89 7c 24 38 31 f6 e8 9e 5d ed 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 07 05 00 00 4c 89 74 24 40 41 c6 44 24 RSP: 0018:ffffc90002f2fb40 EFLAGS: 00010a02 RAX: 1ffff1101f010249 RBX: ffff88806e15004b RCX: 1ffff920005e5f48 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880f8081248 RBP: ffffc90002f2fc28 R08: dffffc0000000000 R09: fffff520005e5f21 R10: fffff520005e5f21 R11: 1ffff920005e5f20 R12: ffff8880f8081230 R13: ffff888076d1b800 R14: 1ffff920005e5f74 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101f010249 CR3: 000000000be8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_put_super+0xc8/0x160 fs/udf/super.c:2395 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 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x61e/0x20a0 kernel/exit.c:883 do_group_exit+0x12e/0x300 kernel/exit.c:997 __do_sys_exit_group kernel/exit.c:1008 [inline] __se_sys_exit_group kernel/exit.c:1006 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006 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: 0033:0x7facd69e9ea9 Code: Unable to access opcode bytes at RIP 0x7facd69e9e7f. RSP: 002b:00007ffe5957fc58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007facd6a353de RCX: 00007facd69e9ea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000005 R08: 00007ffe5957d9f7 R09: 00007ffe59580f10 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe59580f10 R13: 00007facd6a353b9 R14: 0000000000017125 R15: 0000000000000006 Modules linked in: CR2: ffffed101f010249 ---[ end trace 39930c1e07b8a7f1 ]--- RIP: 0010:udf_close_lvid+0x14e/0x990 fs/udf/super.c:2108 Code: 0f 84 f7 00 00 00 4c 89 6c 24 20 49 8d bd c0 00 00 00 48 89 7c 24 38 31 f6 e8 9e 5d ed 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 07 05 00 00 4c 89 74 24 40 41 c6 44 24 RSP: 0018:ffffc90002f2fb40 EFLAGS: 00010a02 RAX: 1ffff1101f010249 RBX: ffff88806e15004b RCX: 1ffff920005e5f48 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880f8081248 RBP: ffffc90002f2fc28 R08: dffffc0000000000 R09: fffff520005e5f21 R10: fffff520005e5f21 R11: 1ffff920005e5f20 R12: ffff8880f8081230 R13: ffff888076d1b800 R14: 1ffff920005e5f74 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101f010249 CR3: 000000000be8e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f 84 f7 00 00 00 je 0xfd 6: 4c 89 6c 24 20 mov %r13,0x20(%rsp) b: 49 8d bd c0 00 00 00 lea 0xc0(%r13),%rdi 12: 48 89 7c 24 38 mov %rdi,0x38(%rsp) 17: 31 f6 xor %esi,%esi 19: e8 9e 5d ed 06 call 0x6ed5dbc 1e: 49 8d 7c 24 18 lea 0x18(%r12),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 07 05 00 00 jne 0x53e 37: 4c 89 74 24 40 mov %r14,0x40(%rsp) 3c: 41 rex.B 3d: c6 .byte 0xc6 3e: 44 rex.R 3f: 24 .byte 0x24