fscrypt: AES-256-CTS-CBC using implementation "cts(cbc-aes-aesni)" fscrypt: AES-256-XTS using implementation "xts-aes-aesni" incfs: Can't find or create .index dir in ./file0 incfs: mount failed -22 general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 287 Comm: syz-executor325 Not tainted 5.10.225-syzkaller-00513-g8d23314f588a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:current_umask+0x49/0x70 fs/fs_struct.c:158 Code: 81 c3 c0 07 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 b5 a2 e9 ff 48 8b 1b 48 83 c3 0c 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 07 8b 03 5b 41 5e 5d c3 89 d9 80 e1 07 80 RSP: 0018:ffffc90000b874b8 EFLAGS: 00010203 RAX: 0000000000000001 RBX: 000000000000000c RCX: ffff888120eb93c0 RDX: 0000000000000000 RSI: ffffffff8686a330 RDI: 0000000000000000 RBP: ffffc90000b874c8 R08: 0000000000000007 R09: ffffffff81cb18f5 R10: 0000000000000002 R11: ffff888120eb93c0 R12: dffffc0000000000 R13: 1ffff92000170eb4 R14: dffffc0000000000 R15: ffff88811053e600 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f443ccb8130 CR3: 000000000660f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: posix_acl_create+0x169/0x400 fs/posix_acl.c:597 ext4_init_acl+0xf3/0x400 fs/ext4/acl.c:279 __ext4_new_inode+0x2f6f/0x3ee0 fs/ext4/ialloc.c:1319 ext4_mknod+0x267/0x530 fs/ext4/namei.c:2856 vfs_mknod+0x53f/0x610 fs/namei.c:3693 vfs_whiteout include/linux/fs.h:1835 [inline] ovl_do_whiteout fs/overlayfs/overlayfs.h:229 [inline] ovl_whiteout fs/overlayfs/dir.c:77 [inline] ovl_cleanup_and_whiteout+0x1b1/0x580 fs/overlayfs/dir.c:117 ovl_remove_and_whiteout fs/overlayfs/dir.c:795 [inline] ovl_do_remove+0x72a/0xc90 fs/overlayfs/dir.c:922 ovl_rmdir+0x1a/0x20 fs/overlayfs/dir.c:956 vfs_rmdir+0x2b7/0x3f0 fs/namei.c:3852 incfs_kill_sb+0x108/0x220 fs/incfs/vfs.c:1973 deactivate_locked_super+0xad/0x110 fs/super.c:335 deactivate_super+0xbe/0xf0 fs/super.c:366 cleanup_mnt+0x45c/0x510 fs/namespace.c:1118 __cleanup_mnt+0x19/0x20 fs/namespace.c:1125 task_work_run+0x129/0x190 kernel/task_work.c:189 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0xc83/0x2a50 kernel/exit.c:863 do_group_exit+0x141/0x310 kernel/exit.c:985 __do_sys_exit_group kernel/exit.c:996 [inline] __se_sys_exit_group kernel/exit.c:994 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:994 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f443cc3e809 Code: Unable to access opcode bytes at RIP 0x7f443cc3e7df. RSP: 002b:00007fffd1110448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f443cc3e809 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f443ccba2b0 R08: ffffffffffffffb8 R09: 00007f443cc8e83c R10: 0000000000000000 R11: 0000000000000246 R12: 00007f443ccba2b0 R13: 0000000000000000 R14: 00007f443ccbb020 R15: 00007f443cc0cb40 Modules linked in: ---[ end trace 67c1b23d60652081 ]--- RIP: 0010:current_umask+0x49/0x70 fs/fs_struct.c:158 Code: 81 c3 c0 07 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 b5 a2 e9 ff 48 8b 1b 48 83 c3 0c 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 07 8b 03 5b 41 5e 5d c3 89 d9 80 e1 07 80 RSP: 0018:ffffc90000b874b8 EFLAGS: 00010203 RAX: 0000000000000001 RBX: 000000000000000c RCX: ffff888120eb93c0 RDX: 0000000000000000 RSI: ffffffff8686a330 RDI: 0000000000000000 RBP: ffffc90000b874c8 R08: 0000000000000007 R09: ffffffff81cb18f5 R10: 0000000000000002 R11: ffff888120eb93c0 R12: dffffc0000000000 R13: 1ffff92000170eb4 R14: dffffc0000000000 R15: ffff88811053e600 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f443ccb8130 CR3: 000000000660f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 81 c3 c0 07 00 00 add $0x7c0,%ebx 6: 48 89 d8 mov %rbx,%rax 9: 48 c1 e8 03 shr $0x3,%rax d: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) 12: 74 08 je 0x1c 14: 48 89 df mov %rbx,%rdi 17: e8 b5 a2 e9 ff call 0xffe9a2d1 1c: 48 8b 1b mov (%rbx),%rbx 1f: 48 83 c3 0c add $0xc,%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 75 07 jne 0x3a 33: 8b 03 mov (%rbx),%eax 35: 5b pop %rbx 36: 41 5e pop %r14 38: 5d pop %rbp 39: c3 ret 3a: 89 d9 mov %ebx,%ecx 3c: 80 e1 07 and $0x7,%cl 3f: 80 .byte 0x80