BUG: unable to handle page fault for address: ffffed10182fbc0d #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffee067 P4D 23ffee067 PUD 13fff5067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5066 Comm: syz-executor149 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:udf_close_lvid+0x13b/0x5c0 fs/udf/super.c:2035 Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 6a f3 8f 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 b2 03 00 00 RSP: 0018:ffffc9000337fcf8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8880c17de050 RCX: 0000000000000000 RDX: 1ffff110182fbc0d RSI: ffffffff8b2ee420 RDI: ffff8880c17de068 RBP: ffff8880724a0698 R08: 0000000000000000 R09: fffffbfff1e30df2 R10: ffffc9000337fcf8 R11: 0000000000000001 R12: ffff8880192c5400 R13: ffff8880209de000 R14: ffff888074dd9000 R15: ffff888079a12c80 FS: 0000555555cd9380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10182fbc0d CR3: 0000000020736000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_put_super+0x19c/0x200 fs/udf/super.c:2322 generic_shutdown_super+0x161/0x3d0 fs/super.c:696 kill_block_super+0x3b/0x90 fs/super.c:1667 deactivate_locked_super+0xbc/0x1a0 fs/super.c:484 deactivate_super+0xde/0x100 fs/super.c:517 cleanup_mnt+0x222/0x450 fs/namespace.c:1256 task_work_run+0x14d/0x240 kernel/task_work.c:180 ptrace_notify+0x10d/0x130 kernel/signal.c:2399 ptrace_report_syscall include/linux/ptrace.h:411 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:473 [inline] syscall_exit_work kernel/entry/common.c:251 [inline] syscall_exit_to_user_mode_prepare+0x126/0x230 kernel/entry/common.c:278 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0xe/0x60 kernel/entry/common.c:296 do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:88 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f17d454d687 Code: 08 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff809e8d18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f17d454d687 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff809e8dd0 RBP: 00007fff809e8dd0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff809e9e40 R13: 0000555555cda6c0 R14: 431bde82d7b634db R15: 00007fff809e9e60 Modules linked in: CR2: ffffed10182fbc0d ---[ end trace 0000000000000000 ]--- RIP: 0010:udf_close_lvid+0x13b/0x5c0 fs/udf/super.c:2035 Code: 84 24 c0 00 00 00 31 f6 48 89 c7 48 89 44 24 08 e8 6a f3 8f 07 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 b2 03 00 00 RSP: 0018:ffffc9000337fcf8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8880c17de050 RCX: 0000000000000000 RDX: 1ffff110182fbc0d RSI: ffffffff8b2ee420 RDI: ffff8880c17de068 RBP: ffff8880724a0698 R08: 0000000000000000 R09: fffffbfff1e30df2 R10: ffffc9000337fcf8 R11: 0000000000000001 R12: ffff8880192c5400 R13: ffff8880209de000 R14: ffff888074dd9000 R15: ffff888079a12c80 FS: 0000555555cd9380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10182fbc0d CR3: 0000000020736000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 84 24 c0 test %ah,(%rax,%rax,8) 3: 00 00 add %al,(%rax) 5: 00 31 add %dh,(%rcx) 7: f6 48 89 c7 testb $0xc7,-0x77(%rax) b: 48 89 44 24 08 mov %rax,0x8(%rsp) 10: e8 6a f3 8f 07 call 0x78ff37f 15: 48 8d 7b 18 lea 0x18(%rbx),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 48 89 fa mov %rdi,%rdx 31: 83 e2 07 and $0x7,%edx 34: 38 d0 cmp %dl,%al 36: 7f 08 jg 0x40 38: 84 c0 test %al,%al 3a: 0f 85 b2 03 00 00 jne 0x3f2