BUG: unable to handle page fault for address: ffffed1019eaabcd #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: 1 PID: 7196 Comm: syz-executor.1 Not tainted 6.4.0-rc6-syzkaller-00026-gfb054096aea0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2039 Code: f2 d9 9d fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 a1 c0 2c 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:ffffc90014c97a18 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880cf555e50 RCX: 0000000000000000 RDX: 1ffff11019eaabcd RSI: 0000000000000002 RDI: ffff8880cf555e68 RBP: ffff88802ad4dc00 R08: 0000000000000000 R09: ffffffff8e7a8917 R10: fffffbfff1cf5122 R11: 0000000000000001 R12: ffff888040dccae0 R13: ffff888043d13000 R14: ffff88802ad4dcc0 R15: ffff8880765436c0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1019eaabcd CR3: 00000000777e6000 CR4: 0000000000350ee0 Call Trace: udf_put_super+0x1bb/0x230 fs/udf/super.c:2326 generic_shutdown_super+0x158/0x480 fs/super.c:500 kill_block_super+0xa1/0x100 fs/super.c:1407 deactivate_locked_super+0x98/0x160 fs/super.c:331 deactivate_super+0xb1/0xd0 fs/super.c:362 cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xaa3/0x29b0 kernel/exit.c:874 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x2318/0x25b0 kernel/signal.c:2876 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 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:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1a7eeb0ec1 Code: Unable to access opcode bytes at 0x7f1a7eeb0e97. RSP: 002b:00007f1a7fb120b0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007f1a7efabf80 RCX: 00007f1a7eeb0ec1 RDX: 00007f1a7fb120f0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f1a7eee7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fff935b3c6f R14: 00007f1a7fb12300 R15: 0000000000022000 Modules linked in: CR2: ffffed1019eaabcd ---[ end trace 0000000000000000 ]--- RIP: 0010:udf_close_lvid.isra.0+0x104/0x550 fs/udf/super.c:2039 Code: f2 d9 9d fe 4c 8d b5 c0 00 00 00 31 f6 4c 89 f7 e8 a1 c0 2c 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:ffffc90014c97a18 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880cf555e50 RCX: 0000000000000000 RDX: 1ffff11019eaabcd RSI: 0000000000000002 RDI: ffff8880cf555e68 RBP: ffff88802ad4dc00 R08: 0000000000000000 R09: ffffffff8e7a8917 R10: fffffbfff1cf5122 R11: 0000000000000001 R12: ffff888040dccae0 R13: ffff888043d13000 R14: ffff88802ad4dcc0 R15: ffff8880765436c0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1019eaabcd CR3: 00000000777e6000 CR4: 0000000000350ee0 ---------------- 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 a1 c0 2c 07 callq 0x72cc0b2 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