BUG: stack guard page was hit in sys_creat (7)

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syzbot

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Apr 3, 2022, 3:31:27 PM4/3/22
to syzkaller-a...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: 414e6c8e941c ANDROID: fix up abi issue with struct snd_pcm..
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=168a2aa0f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c82cd64ef7210f0c
dashboard link: https://syzkaller.appspot.com/bug?extid=48a7b91d7ccac58bb2d0
compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=120f4a5f700000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=134016fd700000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+48a7b9...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc900002f7ff8 (stack is ffffc900002f8000..ffffc900002fffff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 366 Comm: syz-executor292 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:memset+0x8/0x40 mm/kasan/shadow.c:43
Code: 66 90 55 48 89 e5 89 f6 48 8b 4d 08 ba 01 00 00 00 e8 3c ed ff ff 5d c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 <53> 49 89 d7 41 89 f6 48 89 fb 48 8b 4d 08 48 89 d6 ba 01 00 00 00
RSP: 0018:ffffc900002f8000 EFLAGS: 00010246
RAX: ffffffff81db9c57 RBX: ffffc900002f8100 RCX: ffff88811d074f00
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900002f8100
RBP: ffffc900002f8010 R08: ffffc900002f8200 R09: ffffed1021d7ad55
R10: ffffed1021d7ad55 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200005f01c R14: ffffc900002f8300 R15: ffffc900002f8200
FS: 00007f2785cfc700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900002f7ff8 CR3: 00000001071e3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__ext4_get_inode_loc+0xb6/0xed0 fs/ext4/inode.c:4352
ext4_get_inode_loc+0x128/0x1d0 fs/ext4/inode.c:4500
ext4_xattr_ibody_get+0x104/0xb00 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x5a4/0x6a0 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+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
lookup_open fs/namei.c:3162 [inline]
open_last_lookups fs/namei.c:3253 [inline]
path_openat+0x11c0/0x3500 fs/namei.c:3441
do_filp_open+0x200/0x440 fs/namei.c:3471
do_sys_openat2+0x13b/0x470 fs/open.c:1211
do_sys_open fs/open.c:1227 [inline]
__do_sys_creat fs/open.c:1301 [inline]
__se_sys_creat fs/open.c:1295 [inline]
__x64_sys_creat+0x11f/0x160 fs/open.c:1295
do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f2785d4a009
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2785cfc208 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 0000000000000036 RCX: 00007f2785d4a009
RDX: ffffffffffffffb8 RSI: 000000000000003a RDI: 00000000200000c0
RBP: 00007f2785dd24a0 R08: 00007f2785dd24a8 R09: 00007f2785dd24a8
R10: 00007f2785dd24a8 R11: 0000000000000246 R12: 00007f2785dd24ac
R13: 00007ffd10d9857f R14: 00007f2785cfc300 R15: 0000000000022000
Modules linked in:
---[ end trace 5fd3c162f14601db ]---
RIP: 0010:memset+0x8/0x40 mm/kasan/shadow.c:43
Code: 66 90 55 48 89 e5 89 f6 48 8b 4d 08 ba 01 00 00 00 e8 3c ed ff ff 5d c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 <53> 49 89 d7 41 89 f6 48 89 fb 48 8b 4d 08 48 89 d6 ba 01 00 00 00
RSP: 0018:ffffc900002f8000 EFLAGS: 00010246
RAX: ffffffff81db9c57 RBX: ffffc900002f8100 RCX: ffff88811d074f00
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900002f8100
RBP: ffffc900002f8010 R08: ffffc900002f8200 R09: ffffed1021d7ad55
R10: ffffed1021d7ad55 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200005f01c R14: ffffc900002f8300 R15: ffffc900002f8200
FS: 00007f2785cfc700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900002f7ff8 CR3: 00000001071e3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 66 90 xchg %ax,%ax
2: 55 push %rbp
3: 48 89 e5 mov %rsp,%rbp
6: 89 f6 mov %esi,%esi
8: 48 8b 4d 08 mov 0x8(%rbp),%rcx
c: ba 01 00 00 00 mov $0x1,%edx
11: e8 3c ed ff ff callq 0xffffed52
16: 5d pop %rbp
17: c3 retq
18: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
1f: 00 00 00
22: 55 push %rbp
23: 48 89 e5 mov %rsp,%rbp
26: 41 57 push %r15
28: 41 56 push %r14
* 2a: 53 push %rbx <-- trapping instruction
2b: 49 89 d7 mov %rdx,%r15
2e: 41 89 f6 mov %esi,%r14d
31: 48 89 fb mov %rdi,%rbx
34: 48 8b 4d 08 mov 0x8(%rbp),%rcx
38: 48 89 d6 mov %rdx,%rsi
3b: ba 01 00 00 00 mov $0x1,%edx


---
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Tadeusz Struk

unread,
Apr 4, 2022, 12:49:35 PM4/4/22
to syzbot, syzkaller-a...@googlegroups.com
#syz dup: BUG: stack guard page was hit in file_open

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Thanks,
Tadeusz
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