BUG: unable to handle page fault for address: ffffed101c842437 #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: 7618 Comm: syz-executor.3 Not tainted 6.7.0-rc4-syzkaller-00424-gc527f5606aa5 #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 8a 00 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:ffffc9000a0b7a18 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880e42121a0 RCX: 0000000000000000 RDX: 1ffff1101c842437 RSI: ffffffff8b2f1160 RDI: ffff8880e42121b8 RBP: ffff88802fa08488 R08: 0000000000000000 R09: fffffbfff1e3286a R10: ffffc9000a0b7a18 R11: 0000000000000001 R12: ffff88807e4b3000 R13: ffff88803542c000 R14: ffff88807b4b8000 R15: ffff88804b5e5240 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101c842437 CR3: 0000000028552000 CR4: 0000000000350ef0 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+0xa92/0x2ae0 kernel/exit.c:871 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021 get_signal+0x23be/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_syscall_64+0x4d/0x110 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f81320a7fb5 Code: Unable to access opcode bytes at 0x7f81320a7f8b. RSP: 002b:00007f8132e45010 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007f813219bf80 RCX: 00007f81320a7fb5 RDX: 00007f8132e45050 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f81320c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000000000000b R14: 00007f813219bf80 R15: 00007ffdb7179b48 Modules linked in: CR2: ffffed101c842437 ---[ 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 8a 00 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:ffffc9000a0b7a18 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880e42121a0 RCX: 0000000000000000 RDX: 1ffff1101c842437 RSI: ffffffff8b2f1160 RDI: ffff8880e42121b8 RBP: ffff88802fa08488 R08: 0000000000000000 R09: fffffbfff1e3286a R10: ffffc9000a0b7a18 R11: 0000000000000001 R12: ffff88807e4b3000 R13: ffff88803542c000 R14: ffff88807b4b8000 R15: ffff88804b5e5240 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101c842437 CR3: 0000000028552000 CR4: 0000000000350ef0 ---------------- 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 8a 00 8f 07 call 0x78f009f 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