loop0: detected capacity change from 0 to 2048 BUG: unable to handle page fault for address: ffffed1019736046 #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: 5059 Comm: syz-executor218 Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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 3a 33 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:ffffc9000394fc38 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880cb9b0218 RCX: 0000000000000000 RDX: 1ffff11019736046 RSI: ffffffff8b2f01a0 RDI: ffff8880cb9b0230 RBP: ffff888078438488 R08: 0000000000000000 R09: fffffbfff1e327aa R10: ffffc9000394fc38 R11: 0000000000000001 R12: ffff888021750800 R13: ffff88805dca2000 R14: ffff88807ec87000 R15: ffff888078fef240 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1019736046 CR3: 000000000cd77000 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+0xa8a/0x2ad0 kernel/exit.c:869 do_group_exit+0xd4/0x2a0 kernel/exit.c:1018 __do_sys_exit_group kernel/exit.c:1029 [inline] __se_sys_exit_group kernel/exit.c:1027 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1027 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff38a064af9 Code: Unable to access opcode bytes at 0x7ff38a064acf. RSP: 002b:00007ffccc8c7188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff38a064af9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007ff38a0e82f0 R08: ffffffffffffffb0 R09: 00007ff30000000c R10: 00007ff30000000c R11: 0000000000000246 R12: 00007ff38a0e82f0 R13: 0000000000000000 R14: 00007ff38a0ea0c0 R15: 00007ff38a028070 Modules linked in: CR2: ffffed1019736046 ---[ 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 3a 33 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:ffffc9000394fc38 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880cb9b0218 RCX: 0000000000000000 RDX: 1ffff11019736046 RSI: ffffffff8b2f01a0 RDI: ffff8880cb9b0230 RBP: ffff888078438488 R08: 0000000000000000 R09: fffffbfff1e327aa R10: ffffc9000394fc38 R11: 0000000000000001 R12: ffff888021750800 R13: ffff88805dca2000 R14: ffff88807ec87000 R15: ffff888078fef240 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed1019736046 CR3: 000000000cd77000 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 3a 33 8f 07 call 0x78f334f 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