BUG: unable to handle page fault for address: ffffed101e7b6283 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffef067 P4D 23ffef067 PUD 13fff6067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4963 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:udf_close_lvid+0x14f/0x9a0 fs/udf/super.c:2108 Code: 0f 84 f2 00 00 00 4c 89 6c 24 48 49 8d be c0 00 00 00 48 89 7c 24 40 31 f6 e8 3d e8 f9 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1f 05 00 00 4c 89 74 24 28 41 c6 44 24 RSP: 0018:ffffc9000358fc60 EFLAGS: 00010a02 RAX: 1ffff1101e7b6283 RBX: ffff88806202104b RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880f3db1418 RBP: ffffc9000358fd58 R08: ffffc9000358fa27 R09: 1ffff920006b1f44 R10: dffffc0000000000 R11: fffff520006b1f45 R12: ffff8880f3db1400 R13: 1ffff920006b1f98 R14: ffff88805e27a800 R15: dffffc0000000000 FS: 000055557c0a5500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101e7b6283 CR3: 0000000075f46000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_put_super+0xc8/0x160 fs/udf/super.c:2395 generic_shutdown_super+0x130/0x300 fs/super.c:475 kill_block_super+0x7c/0xe0 fs/super.c:1427 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x42d/0x4e0 fs/namespace.c:1148 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4a47f62157 Code: a2 c7 05 3c 84 23 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffdab729598 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f4a47ff533b RCX: 00007f4a47f62157 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdab729650 RBP: 00007ffdab729650 R08: 00007ffdab72a650 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdab72a6e0 R13: 00007f4a47ff533b R14: 0000000000017d7e R15: 00007ffdab72a720 Modules linked in: CR2: ffffed101e7b6283 ---[ end trace 71bf8a419ca6a2d0 ]--- RIP: 0010:udf_close_lvid+0x14f/0x9a0 fs/udf/super.c:2108 Code: 0f 84 f2 00 00 00 4c 89 6c 24 48 49 8d be c0 00 00 00 48 89 7c 24 40 31 f6 e8 3d e8 f9 06 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 1f 05 00 00 4c 89 74 24 28 41 c6 44 24 RSP: 0018:ffffc9000358fc60 EFLAGS: 00010a02 RAX: 1ffff1101e7b6283 RBX: ffff88806202104b RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8880f3db1418 RBP: ffffc9000358fd58 R08: ffffc9000358fa27 R09: 1ffff920006b1f44 R10: dffffc0000000000 R11: fffff520006b1f45 R12: ffff8880f3db1400 R13: 1ffff920006b1f98 R14: ffff88805e27a800 R15: dffffc0000000000 FS: 000055557c0a5500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed101e7b6283 CR3: 0000000075f46000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f 84 f2 00 00 00 je 0xf8 6: 4c 89 6c 24 48 mov %r13,0x48(%rsp) b: 49 8d be c0 00 00 00 lea 0xc0(%r14),%rdi 12: 48 89 7c 24 40 mov %rdi,0x40(%rsp) 17: 31 f6 xor %esi,%esi 19: e8 3d e8 f9 06 call 0x6f9e85b 1e: 49 8d 7c 24 18 lea 0x18(%r12),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 1f 05 00 00 jne 0x556 37: 4c 89 74 24 28 mov %r14,0x28(%rsp) 3c: 41 rex.B 3d: c6 .byte 0xc6 3e: 44 rex.R 3f: 24 .byte 0x24