BUG: unable to handle page fault for address: ffffed10106b807d #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: 2 PID: 5893 Comm: syz-executor.1 Not tainted 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #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 ea 4e 4e 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:ffffc90028ccf9f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff8880835c03d0 RCX: fffff52005199f1e RDX: 1ffff110106b807d RSI: ffffffff8ae93460 RDI: ffff8880835c03e8 RBP: ffff888027923ae0 R08: 0000000000000000 R09: fffffbfff1d9841a R10: ffffc90028ccf9f8 R11: 0000000000000000 R12: ffff88805c5d3c00 R13: ffff888022cf0000 R14: ffff8880767a3000 R15: ffff888014eeac40 FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffed10106b807d CR3: 00000000229f0000 CR4: 0000000000350ee0 Call Trace: udf_put_super+0x19c/0x200 fs/udf/super.c:2322 generic_shutdown_super+0x161/0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde/0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa92/0x2a20 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23ba/0x2790 kernel/signal.c:2892 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+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 __do_fast_syscall_32+0x6d/0xe0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7f92579 Code: Unable to access opcode bytes at 0xf7f9254f. RSP: 002b:00000000f7f8d4b0 EFLAGS: 00000293 ORIG_RAX: 000000000000010b RAX: fffffffffffffdfc RBX: 0000000000000000 RCX: 0000000000000000 RDX: 00000000f7f8d4e4 RSI: 00000000f7f8d4dc RDI: 00000000f7f8d4e4 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: ffffed10106b807d ---[ 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 ea 4e 4e 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:ffffc90028ccf9f8 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff8880835c03d0 RCX: fffff52005199f1e RDX: 1ffff110106b807d RSI: ffffffff8ae93460 RDI: ffff8880835c03e8 RBP: ffff888027923ae0 R08: 0000000000000000 R09: fffffbfff1d9841a R10: ffffc90028ccf9f8 R11: 0000000000000000 R12: ffff88805c5d3c00 R13: ffff888022cf0000 R14: ffff8880767a3000 R15: ffff888014eeac40 FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffffed10106b807d CR3: 00000000229f0000 CR4: 0000000000350ee0 ---------------- 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 ea 4e 4e 07 call 0x74e4eff 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