BUG: unable to handle page fault for address: ffffed101cc57049 #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: 6264 Comm: syz-executor.2 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:udf_close_lvid+0x148/0x9a0 fs/udf/super.c:2076 Code: dc 49 83 c4 50 0f 84 f3 00 00 00 49 8d bf c0 00 00 00 48 89 7c 24 40 31 f6 e8 74 76 4a 07 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 3d 05 00 00 4c 89 7c 24 18 4c 89 74 24 RSP: 0018:ffffc90002d77b00 EFLAGS: 00010a02 RAX: 1ffff1101cc57049 RBX: ffff88805c387000 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880e62b8248 RBP: ffffc90002d77c00 R08: dffffc0000000000 R09: fffff520005aef1d R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880e62b8230 R13: dffffc0000000000 R14: 1ffff920005aef6c R15: ffff88805fb1d000 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101cc57049 CR3: 000000001ec1a000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_put_super+0xc9/0x160 fs/udf/super.c:2363 generic_shutdown_super+0x136/0x2c0 fs/super.c:475 kill_block_super+0x7a/0xe0 fs/super.c:1414 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:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x6a3/0x2480 kernel/exit.c:872 do_group_exit+0x144/0x310 kernel/exit.c:994 __do_sys_exit_group kernel/exit.c:1005 [inline] __se_sys_exit_group kernel/exit.c:1003 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003 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: 0033:0x7f8e71308ea9 Code: Unable to access opcode bytes at RIP 0x7f8e71308e7f. RSP: 002b:00007fff22d8b6c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f8e713543de RCX: 00007f8e71308ea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000005 R08: 00007fff22d89467 R09: 00007fff22d8c980 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff22d8c980 R13: 00007f8e713543b9 R14: 0000000000050114 R15: 000000000000001e Modules linked in: CR2: ffffed101cc57049 ---[ end trace ed2ad460ebd75dad ]--- RIP: 0010:udf_close_lvid+0x148/0x9a0 fs/udf/super.c:2076 Code: dc 49 83 c4 50 0f 84 f3 00 00 00 49 8d bf c0 00 00 00 48 89 7c 24 40 31 f6 e8 74 76 4a 07 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 3d 05 00 00 4c 89 7c 24 18 4c 89 74 24 RSP: 0018:ffffc90002d77b00 EFLAGS: 00010a02 RAX: 1ffff1101cc57049 RBX: ffff88805c387000 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880e62b8248 RBP: ffffc90002d77c00 R08: dffffc0000000000 R09: fffff520005aef1d R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880e62b8230 R13: dffffc0000000000 R14: 1ffff920005aef6c R15: ffff88805fb1d000 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101cc57049 CR3: 000000001ec1a000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 49 83 c4 50 add $0x50,%r12 4: 0f 84 f3 00 00 00 je 0xfd a: 49 8d bf c0 00 00 00 lea 0xc0(%r15),%rdi 11: 48 89 7c 24 40 mov %rdi,0x40(%rsp) 16: 31 f6 xor %esi,%esi 18: e8 74 76 4a 07 call 0x74a7691 1d: 49 8d 7c 24 18 lea 0x18(%r12),%rdi 22: 48 89 f8 mov %rdi,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 3d 05 00 00 jne 0x573 36: 4c 89 7c 24 18 mov %r15,0x18(%rsp) 3b: 4c rex.WR 3c: 89 .byte 0x89 3d: 74 24 je 0x63