REISERFS (device loop4): Using rupasov 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: 0 PID: 26022 Comm: syz-executor.4 Not tainted 5.12.0-rc5-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:475 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:79 [inline]
RIP: 0010:reiserfs_security_init+0x24a/0x440 fs/reiserfs/xattr_security.c:71
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ae d8 b6 ff 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 88 d8 b6 ff 4d 85 ed b8 a2 00 00 00
RSP: 0018:ffffc90008dc79c0 EFLAGS: 00010202
RAX: 000000000000000d RBX: 0000000000000068 RCX: dffffc0000000000
RDX: ffffc900117f5000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000280202 R08: ffffffff82062675 R09: ffffffff82062547
R10: 0000000000000002 R11: ffff888057233880 R12: ffff88802faf0c30
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  00007f0da5bd6700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd14fd2690 CR3: 000000008cc0c000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reiserfs_mkdir+0x230/0x800 fs/reiserfs/namei.c:822
 xattr_mkdir fs/reiserfs/xattr.c:76 [inline]
 create_privroot fs/reiserfs/xattr.c:889 [inline]
 reiserfs_xattr_init+0x34b/0x730 fs/reiserfs/xattr.c:1012
 reiserfs_fill_super+0x2aac/0x3160 fs/reiserfs/super.c:2177
 mount_bdev+0x26c/0x3a0 fs/super.c:1367
 legacy_get_tree+0xea/0x180 fs/fs_context.c:592
 vfs_get_tree+0x86/0x270 fs/super.c:1497
 do_new_mount fs/namespace.c:2903 [inline]
 path_mount+0x188a/0x29a0 fs/namespace.c:3233
 do_mount fs/namespace.c:3246 [inline]
 __do_sys_mount fs/namespace.c:3454 [inline]
 __se_sys_mount+0x28c/0x320 fs/namespace.c:3431
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46797a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0da5bd5fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0da5bd6000
RBP: 00007f0da5bd6040 R08: 00007f0da5bd6040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f0da5bd6000 R15: 0000000020011500
Modules linked in:
---[ end trace 43398698b3ff128a ]---
RIP: 0010:d_really_is_negative include/linux/dcache.h:475 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:79 [inline]
RIP: 0010:reiserfs_security_init+0x24a/0x440 fs/reiserfs/xattr_security.c:71
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ae d8 b6 ff 48 8b 1b 48 83 c3 68 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 88 d8 b6 ff 4d 85 ed b8 a2 00 00 00
RSP: 0018:ffffc90008dc79c0 EFLAGS: 00010202
RAX: 000000000000000d RBX: 0000000000000068 RCX: dffffc0000000000
RDX: ffffc900117f5000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000280202 R08: ffffffff82062675 R09: ffffffff82062547
R10: 0000000000000002 R11: ffff888057233880 R12: ffff88802faf0c30
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
FS:  00007f0da5bd6700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0069da000 CR3: 000000008cc0c000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400