BUG: unable to handle page fault for address: ffffed101c2322d9 #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: 5029 Comm: syz-executor332 Not tainted 6.4.0-next-20230630-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2035 Code: f2 70 9c fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 51 e3 3a 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 88 03 00 00 RSP: 0018:ffffc90003adfc38 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8880e11916b0 RCX: 0000000000000000 RDX: 1ffff1101c2322d9 RSI: 0000000000000002 RDI: ffff8880e11916c8 RBP: ffff888029f74400 R08: 0000000000000000 R09: fffffbfff1d54d52 R10: ffffffff8eaa6a97 R11: 0000000000000001 R12: ffff88807562ee80 R13: ffff888075e84000 R14: ffff888029f744c0 R15: ffff8880795c2940 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101c2322d9 CR3: 000000000c775000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_put_super+0x1bb/0x230 fs/udf/super.c:2322 generic_shutdown_super+0x158/0x480 fs/super.c:499 kill_block_super+0x64/0xb0 fs/super.c:1417 deactivate_locked_super+0x98/0x160 fs/super.c:330 deactivate_super+0xb1/0xd0 fs/super.c:361 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1254 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa9a/0x29a0 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f618f3f6ea9 Code: Unable to access opcode bytes at 0x7f618f3f6e7f. RSP: 002b:00007fffce5ebf78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f618f48b3f0 RCX: 00007f618f3f6ea9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f618f485e40 R10: 0000000020000380 R11: 0000000000000246 R12: 00007f618f48b3f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Modules linked in: CR2: ffffed101c2322d9 ---[ end trace 0000000000000000 ]--- RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2035 Code: f2 70 9c fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 51 e3 3a 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 88 03 00 00 RSP: 0018:ffffc90003adfc38 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8880e11916b0 RCX: 0000000000000000 RDX: 1ffff1101c2322d9 RSI: 0000000000000002 RDI: ffff8880e11916c8 RBP: ffff888029f74400 R08: 0000000000000000 R09: fffffbfff1d54d52 R10: ffffffff8eaa6a97 R11: 0000000000000001 R12: ffff88807562ee80 R13: ffff888075e84000 R14: ffff888029f744c0 R15: ffff8880795c2940 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101c2322d9 CR3: 000000000c775000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: 4c 8d b5 c0 00 00 00 lea 0xc0(%rbp),%r14 7: 31 f6 xor %esi,%esi 9: 4c 89 f7 mov %r14,%rdi c: e8 51 e3 3a 07 callq 0x73ae362 11: 48 8d 7b 18 lea 0x18(%rbx),%rdi 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx * 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2a: 48 89 fa mov %rdi,%rdx 2d: 83 e2 07 and $0x7,%edx 30: 38 d0 cmp %dl,%al 32: 7f 08 jg 0x3c 34: 84 c0 test %al,%al 36: 0f 85 88 03 00 00 jne 0x3c4