BUG: unable to handle page fault for address: ffffed1026e76e62 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 7ffcd067 P4D 7ffcd067 PUD 3fff5067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12709 Comm: syz-executor.2 Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 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 5a 06 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:ffffc90029bd79f8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8881373b72f8 RCX: 0000000000000000 RDX: 1ffff11026e76e62 RSI: ffffffff8b2efba0 RDI: ffff8881373b7310 RBP: ffff8880251063a0 R08: 0000000000000000 R09: fffffbfff1e3276a R10: ffffc90029bd79f8 R11: 0000000000000001 R12: ffff88801ff20c00 R13: ffff8880655ea000 R14: ffff888065903000 R15: ffff8880687da7c0 FS: 0000000000000000(0000) GS:ffff88802c600000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffed1026e76e62 CR3: 000000000cd77000 CR4: 0000000000350ef0 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 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa8a/0x2ad0 kernel/exit.c:869 do_group_exit+0xd4/0x2a0 kernel/exit.c:1018 get_signal+0x23b5/0x2790 kernel/signal.c:2904 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x121/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296 __do_fast_syscall_32+0x6f/0xe0 arch/x86/entry/common.c:324 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x70/0x7a RIP: 0023:0xf7f3e579 Code: Unable to access opcode bytes at 0xf7f3e54f. RSP: 002b:00000000f7f394b0 EFLAGS: 00000293 ORIG_RAX: 000000000000010b RAX: fffffffffffffdfc RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000f7f394e4 RSI: 00000000f7f394dc RDI: 00000000f7f394e4 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: ffffed1026e76e62 ---[ 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 5a 06 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:ffffc90029bd79f8 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: ffff8881373b72f8 RCX: 0000000000000000 RDX: 1ffff11026e76e62 RSI: ffffffff8b2efba0 RDI: ffff8881373b7310 RBP: ffff8880251063a0 R08: 0000000000000000 R09: fffffbfff1e3276a R10: ffffc90029bd79f8 R11: 0000000000000001 R12: ffff88801ff20c00 R13: ffff8880655ea000 R14: ffff888065903000 R15: ffff8880687da7c0 FS: 0000000000000000(0000) GS:ffff88802c600000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffed1026e76e62 CR3: 000000000cd77000 CR4: 0000000000350ef0 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 5a 06 8f 07 call 0x78f066f 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