general protection fault in reiserfs_security

general protection fault in reiserfs_security_init
Status: upstream: reported C repro on 2020/09/21 09:32
Reported-by: syzbot+690cb1e51970435f9775@syzkaller.appspotmail.com
First crash: 34d, last: 6h28m

Cause bisection: introduced by (bisect log) :
commit 1592c4b9935fa8a3b7c297955bb872a357e5a3b6
Author: Linhua Xu <linhua.xu@unisoc.com>
Date: Wed Mar 25 08:25:28 2020 +0000

pinctrl: sprd: Add pin high impedance mode support

Crash: WARNING: ODEBUG bug in netdev_run_todo (log)
Repro: C syz .config

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2020/10/02 03:14	9m	anant.thazhemadam@gmail.com	patch	https://github.com/google/kmsan.git master	report log

Sample crash report:

REISERFS (device loop0): journal params: device loop0, size 15748, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 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: 6860 Comm: syz-executor254 Not tainted 5.9.0-rc8-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:472 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline]
RIP: 0010:reiserfs_security_init+0x285/0x4d0 fs/reiserfs/xattr_security.c:70
Code: 48 c1 ea 03 80 3c 02 00 0f 85 2b 02 00 00 4d 8b ad a0 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 02 00 00 49 83 7d 68 00 0f 84 62 01 00 00 48
RSP: 0018:ffffc900055f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000036 RCX: 000000000000006c
RDX: 000000000000000d RSI: ffffffff8200b723 RDI: 0000000000000068
RBP: ffff88807d81a1d0 R08: ffffc900055f7a10 R09: ffffc900055f7a18
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000005fa
R13: 0000000000000000 R14: ffff88809301c000 R15: 0000000000000000
FS:  000000000200d880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe0b1e5a000 CR3: 000000008fe40000 CR4: 00000000001506f0
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:882 [inline]
 reiserfs_xattr_init+0x4de/0xb52 fs/reiserfs/xattr.c:1004
 reiserfs_fill_super+0x215d/0x2df3 fs/reiserfs/super.c:2177
 mount_bdev+0x32e/0x3f0 fs/super.c:1417
 legacy_get_tree+0x105/0x220 fs/fs_context.c:592
 vfs_get_tree+0x89/0x2f0 fs/super.c:1547
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x1387/0x20a0 fs/namespace.c:3192
 do_mount fs/namespace.c:3205 [inline]
 __do_sys_mount fs/namespace.c:3413 [inline]
 __se_sys_mount fs/namespace.c:3390 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3390
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x447dba
Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d a3 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 5a a3 fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007ffc731a72b8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc731a7310 RCX: 0000000000447dba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc731a72d0
RBP: 00007ffc731a72d0 R08: 00007ffc731a7310 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007
R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
Modules linked in:
---[ end trace b0c687a772212972 ]---
RIP: 0010:d_really_is_negative include/linux/dcache.h:472 [inline]
RIP: 0010:reiserfs_xattr_jcreate_nblocks fs/reiserfs/xattr.h:78 [inline]
RIP: 0010:reiserfs_security_init+0x285/0x4d0 fs/reiserfs/xattr_security.c:70
Code: 48 c1 ea 03 80 3c 02 00 0f 85 2b 02 00 00 4d 8b ad a0 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 23 02 00 00 49 83 7d 68 00 0f 84 62 01 00 00 48
RSP: 0018:ffffc900055f7980 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000036 RCX: 000000000000006c
RDX: 000000000000000d RSI: ffffffff8200b723 RDI: 0000000000000068
RBP: ffff88807d81a1d0 R08: ffffc900055f7a10 R09: ffffc900055f7a18
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000005fa
R13: 0000000000000000 R14: ffff88809301c000 R15: 0000000000000000
FS:  000000000200d880(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ac003d018 CR3: 000000008fe40000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (7377):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Maintainers
ci-upstream-kasan-gce-root	2020/10/11 11:40	upstream	da690031	4a77ae0b	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/09 01:56	upstream	3d006ee4	92390980	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/08 06:56	upstream	c85fb28b	1880b4a9	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/04 23:09	upstream	22fbc037	5ef9c291	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/04 22:24	upstream	22fbc037	5ef9c291	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/03 17:15	upstream	d3d45f82	2653fa43	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/03 14:16	upstream	d3d45f82	2653fa43	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/29 16:51	upstream	fb0155a0	1b88c6d5	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/09/21 01:16	upstream	325d0eab	9564d2e9	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/09/20 19:48	upstream	325d0eab	9564d2e9	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/21 01:55	linux-next	b652d2a5	9564d2e9	.config	log	report	syz	C		linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 23:55	upstream	0adc313c	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/23 20:47	upstream	0adc313c	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 20:13	upstream	0adc313c	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 19:21	upstream	f9893351	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 19:01	upstream	f9893351	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 18:56	upstream	f9893351	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/23 12:17	upstream	f9893351	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 11:14	upstream	f9893351	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 10:29	upstream	f9893351	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/23 00:33	upstream	96485e44	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/22 20:58	upstream	96485e44	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/22 20:37	upstream	96485e44	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/22 20:21	upstream	96485e44	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/22 19:53	upstream	96485e44	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/22 02:33	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/22 02:07	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root	2020/10/22 01:30	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/22 00:58	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/21 13:40	upstream	c4d6fe73	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/21 12:49	upstream	c4d6fe73	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-root	2020/10/21 11:44	upstream	c4d6fe73	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/23 19:43	upstream	0adc313c	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/23 10:02	upstream	f9893351	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/23 09:39	upstream	f9893351	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/22 19:14	upstream	96485e44	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/22 18:49	upstream	96485e44	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/22 18:32	upstream	96485e44	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/21 23:55	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/21 23:33	upstream	f804b315	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/21 16:36	upstream	c4d6fe73	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-qemu-upstream-386	2020/10/21 11:17	upstream	c4d6fe73	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 21:19	linux-next	9695c4ff	2bb6666c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 05:25	linux-next	9695c4ff	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 05:24	linux-next	9695c4ff	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 04:15	linux-next	9695c4ff	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 03:12	linux-next	9695c4ff	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/23 02:53	linux-next	9695c4ff	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/22 22:11	linux-next	37b992c4	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/22 21:24	linux-next	37b992c4	4e740c00	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/22 06:11	linux-next	37b992c4	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/22 05:12	linux-next	37b992c4	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/22 03:58	linux-next	37b992c4	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/21 23:10	linux-next	53025681	be6b1582	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/21 14:40	linux-next	53025681	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/10/21 12:09	linux-next	53025681	99c64d5c	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root	2020/09/19 12:30	linux-next	b652d2a5	53ce8104	.config	log	report			info	linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org