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BUG: stack guard page was hit in sys_mount (5)

Status: closed as dup on 2022/04/14 18:04
Reported-by: syzbot+7044121af4dd98784c32@syzkaller.appspotmail.com
First crash: 952d, last: 952d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
BUG: stack guard page was hit in file_open C error 25 992d 1070d
▶ ▼ Similar bugs (12)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 BUG: stack guard page was hit in sys_mount (7) C error 3 949d 951d 0/2 closed as dup on 2022/04/18 14:30
android-5-10 BUG: stack guard page was hit in sys_mount (2) C error 2 965d 966d 0/2 closed as dup on 2022/04/01 14:43
android-5-10 BUG: stack guard page was hit in sys_mount (6) C error 1 951d 951d 0/2 closed as dup on 2022/04/15 20:39
android-5-10 BUG: stack guard page was hit in sys_mount C error 4 969d 970d 0/2 closed as dup on 2022/03/29 16:35
android-5-10 BUG: stack guard page was hit in sys_mount (3) C error 1 959d 959d 0/2 closed as dup on 2022/04/08 14:40
android-5-10 BUG: stack guard page was hit in sys_mount (13) C error 1 924d 924d 0/2 closed as dup on 2022/05/12 14:30
android-5-10 BUG: stack guard page was hit in sys_mount (11) C error 1 925d 925d 0/2 closed as dup on 2022/05/11 16:52
android-5-10 BUG: stack guard page was hit in sys_mount (9) C error 11 935d 946d 0/2 closed as dup on 2022/05/04 16:15
android-5-10 BUG: stack guard page was hit in sys_mount (4) C error 6 956d 957d 0/2 closed as dup on 2022/04/11 14:20
android-5-10 BUG: stack guard page was hit in sys_mount (12) C error 1 925d 925d 0/2 closed as dup on 2022/05/11 21:59
android-5-10 BUG: stack guard page was hit in sys_mount (8) C error 2 947d 947d 0/2 closed as dup on 2022/04/19 18:35
android-5-10 BUG: stack guard page was hit in sys_mount (10) C error 3 926d 927d 0/2 closed as dup on 2022/05/11 00:32

Sample crash report:
BUG: stack guard page was hit at ffffc90000257ff8 (stack is ffffc90000258000..ffffc9000025ffff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 368 Comm: syz-executor903 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__find_get_block+0x89/0xbb0 fs/buffer.c:1332
Code: 48 8d 4c 24 20 48 c1 e9 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4a 89 04 39 66 42 c7 44 39 09 f3 f3 48 89 4c 24 10 42 c6 44 39 0b f3 <e8> 32 1b af ff 4c 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7
RSP: 0018:ffffc90000258000 EFLAGS: 00010a02
RAX: f2f2f200f1f1f1f1 RBX: 0000000000000008 RCX: 1ffff9200004b004
RDX: 0000000000001000 RSI: 00000000000000d8 RDI: ffff88810b83bb80
RBP: ffffc900002580e0 R08: ffffffff81e82170 R09: ffffc90000258200
R10: fffff5200004b045 R11: 1ffff9200004b040 R12: ffff88810b83bb80
R13: 0000000000001000 R14: ffffc90000258060 R15: dffffc0000000000
FS:  00005555566da3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000257ff8 CR3: 00000001075dc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __getblk_gfp+0x2f/0x2a0 fs/buffer.c:1359
 sb_getblk include/linux/buffer_head.h:327 [inline]
 __ext4_get_inode_loc+0x3c2/0xd70 fs/ext4/inode.c:4374
 ext4_get_inode_loc+0x128/0x1d0 fs/ext4/inode.c:4500
 ext4_xattr_ibody_get+0x10c/0xb20 fs/ext4/xattr.c:587
 ext4_xattr_get+0x115/0x810 fs/ext4/xattr.c:651
 ext4_xattr_user_get+0xc2/0xf0 fs/ext4/xattr_user.c:28
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 incfs_getxattr fs/incfs/vfs.c:1668 [inline]
 incfs_handler_getxattr+0xfa/0x2e0 fs/incfs/vfs.c:164
 __vfs_getxattr+0x62f/0x700 fs/xattr.c:399
 vfs_getxattr+0x54/0x60 fs/xattr.c:406
 read_size_attr fs/incfs/vfs.c:293 [inline]
 fetch_regular_inode+0x155/0x300 fs/incfs/vfs.c:374
 dir_lookup+0x673/0x6e0 fs/incfs/vfs.c:1008
 __lookup_slow+0x2b3/0x400 fs/namei.c:1628
 lookup_one_len+0x43d/0x6a0 fs/namei.c:2642
 incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
 open_or_create_special_dir+0x49/0x160 fs/incfs/vfs.c:446
 incfs_mount_fs+0x3eb/0x860 fs/incfs/vfs.c:1799
 legacy_get_tree+0xf0/0x190 fs/fs_context.c:592
 vfs_get_tree+0x88/0x290 fs/super.c:1549
 do_new_mount+0x289/0xad0 fs/namespace.c:2899
 path_mount+0x58d/0xce0 fs/namespace.c:3229
 do_mount fs/namespace.c:3242 [inline]
 __do_sys_mount fs/namespace.c:3450 [inline]
 __se_sys_mount+0x2d2/0x3c0 fs/namespace.c:3427
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3427
 do_syscall_64+0x34/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f14ed2589b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe9bd95608 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000003c RCX: 00007f14ed2589b9
RDX: 0000000020000340 RSI: 0000000020000000 RDI: 00000000200002c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000004872
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe9bd95640
R13: 00007ffe9bd9562c R14: 431bde82d7b634db R15: 0000000000000000
Modules linked in:
---[ end trace c94fc3934c790e15 ]---
RIP: 0010:__find_get_block+0x89/0xbb0 fs/buffer.c:1332
Code: 48 8d 4c 24 20 48 c1 e9 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4a 89 04 39 66 42 c7 44 39 09 f3 f3 48 89 4c 24 10 42 c6 44 39 0b f3 <e8> 32 1b af ff 4c 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7
RSP: 0018:ffffc90000258000 EFLAGS: 00010a02
RAX: f2f2f200f1f1f1f1 RBX: 0000000000000008 RCX: 1ffff9200004b004
RDX: 0000000000001000 RSI: 00000000000000d8 RDI: ffff88810b83bb80
RBP: ffffc900002580e0 R08: ffffffff81e82170 R09: ffffc90000258200
R10: fffff5200004b045 R11: 1ffff9200004b040 R12: ffff88810b83bb80
R13: 0000000000001000 R14: ffffc90000258060 R15: dffffc0000000000
FS:  00005555566da3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000257ff8 CR3: 00000001075dc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 8d 4c 24 20       	lea    0x20(%rsp),%rcx
   5:	48 c1 e9 03          	shr    $0x3,%rcx
   9:	48 b8 f1 f1 f1 f1 00 	movabs $0xf2f2f200f1f1f1f1,%rax
  10:	f2 f2 f2
  13:	4a 89 04 39          	mov    %rax,(%rcx,%r15,1)
  17:	66 42 c7 44 39 09 f3 	movw   $0xf3f3,0x9(%rcx,%r15,1)
  1e:	f3
  1f:	48 89 4c 24 10       	mov    %rcx,0x10(%rsp)
  24:	42 c6 44 39 0b f3    	movb   $0xf3,0xb(%rcx,%r15,1)
* 2a:	e8 32 1b af ff       	callq  0xffaf1b61 <-- trapping instruction
  2f:	4c 89 f3             	mov    %r14,%rbx
  32:	48 c1 eb 03          	shr    $0x3,%rbx
  36:	42 80 3c 3b 00       	cmpb   $0x0,(%rbx,%r15,1)
  3b:	74 08                	je     0x45
  3d:	4c 89 f7             	mov    %r14,%rdi

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/04/14 08:31 android12-5.10-lts 414e6c8e941c b17b2923 .config console log report syz C ci2-android-5-10 BUG: stack guard page was hit in sys_mount
2022/04/14 04:05 android12-5.10-lts 414e6c8e941c b17b2923 .config console log report syz C ci2-android-5-10 BUG: stack guard page was hit in sys_mount
* Struck through repros no longer work on HEAD.