REISERFS (device loop3): Using tea hash to sort names
general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f]
CPU: 1 PID: 13094 Comm: syz-executor.3 Not tainted 5.11.0-rc3-next-20210115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:d_really_is_negative include/linux/dcache.h:474 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline]
RIP: 0010:reiserfs_security_init+0x28f/0x530 fs/reiserfs/xattr_security.c:70
Code: 48 c1 e9 03 80 3c 11 00 0f 85 91 02 00 00 49 8b 87 a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 78 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 4d 02 00 00 48 83 78 68 00 0f 84 be 01 00 00 48
RSP: 0018:ffffc900035df970 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000036 RCX: 000000000000000d
RDX: dffffc0000000000 RSI: 000000000000006c RDI: 0000000000000068
RBP: ffff88807e6387a0 R08: 0000000000000000 R09: ffffc900035dfa18
R10: ffffffff81ffe810 R11: 0000000000000000 R12: 000000000000057d
R13: ffff888069d54000 R14: 0000000000000000 R15: ffff88806e823000
FS:  00007fac2fed2700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005636625e4180 CR3: 0000000018875000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_mkdir+0x2c9/0x980 fs/reiserfs/namei.c:821
 create_privroot fs/reiserfs/xattr.c:889 [inline]
 reiserfs_xattr_init+0x4de/0xb60 fs/reiserfs/xattr.c:1011
 reiserfs_fill_super+0x215d/0x2e00 fs/reiserfs/super.c:2177
 mount_bdev+0x34d/0x410 fs/super.c:1366
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1496
 do_new_mount fs/namespace.c:2889 [inline]
 path_mount+0x12ae/0x1e70 fs/namespace.c:3220
 do_mount fs/namespace.c:3233 [inline]
 __do_sys_mount fs/namespace.c:3441 [inline]
 __se_sys_mount fs/namespace.c:3418 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3418
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x460c6a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fac2fed1a78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fac2fed1b10 RCX: 0000000000460c6a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fac2fed1ad0
RBP: 00007fac2fed1ad0 R08: 00007fac2fed1b10 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020011500
Modules linked in:
---[ end trace ec90e70fd05180a5 ]---
RIP: 0010:d_really_is_negative include/linux/dcache.h:474 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline]
RIP: 0010:reiserfs_security_init+0x28f/0x530 fs/reiserfs/xattr_security.c:70
Code: 48 c1 e9 03 80 3c 11 00 0f 85 91 02 00 00 49 8b 87 a0 05 00 00 48 ba 00 00 00 00 00 fc ff df 48 8d 78 68 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 4d 02 00 00 48 83 78 68 00 0f 84 be 01 00 00 48
RSP: 0018:ffffc900035df970 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000036 RCX: 000000000000000d
RDX: dffffc0000000000 RSI: 000000000000006c RDI: 0000000000000068
RBP: ffff88807e6387a0 R08: 0000000000000000 R09: ffffc900035dfa18
R10: ffffffff81ffe810 R11: 0000000000000000 R12: 000000000000057d
R13: ffff888069d54000 R14: 0000000000000000 R15: ffff88806e823000
FS:  00007fac2fed2700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d54041168 CR3: 0000000018875000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400