syzbot


WARNING in ext4_xattr_set_entry
Status: fixed on 2021/04/07 11:21
Reported-by: syzbot+5f057b5967f2e46fe794@syzkaller.appspotmail.com
Fix commit: 470f69cb3742 ext4: do not try to set xattr into ea_inode if value is empty
First crash: 359d, last: 203d

Fix bisection: fixed by (bisect log) :
commit 470f69cb3742e4c774ff2c89f6dbc691ba702926
Author: zhangyi (F) <yi.zhang@huawei.com>
Date: Fri Mar 5 12:05:08 2021 +0000

  ext4: do not try to set xattr into ea_inode if value is empty

similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ext4_xattr_set_entry C unreliable 7 204d 287d 21/22 upstream: reported C repro on 2020/12/12 14:13
linux-4.19 WARNING in ext4_xattr_set_entry C done 12 201d 335d 1/1 fixed on 2021/04/07 11:11

Sample crash report:

Crashes (19):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/01/20 11:56 linux-4.14.y 2762b48e9611 d4f4eca5 .config log report syz C WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2020/12/05 16:24 linux-4.14.y c196b3a9c83a 0ef84591 .config log report syz C
ci2-linux-4-14 2020/12/03 11:32 linux-4.14.y c196b3a9c83a 8c9190ef .config log report syz C
ci2-linux-4-14 2020/10/13 00:42 linux-4.14.y cbfa1702aaf6 d32b0bbf .config log report syz C
ci2-linux-4-14 2020/10/13 00:21 linux-4.14.y cbfa1702aaf6 d32b0bbf .config log report syz C
ci2-linux-4-14 2020/10/01 06:55 linux-4.14.y cbfa1702aaf6 a9767fb2 .config log report syz C
ci2-linux-4-14 2021/03/06 02:46 linux-4.14.y 397a88b2cc86 4a024a9b .config log report info WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2021/03/02 12:28 linux-4.14.y 3242aa3a635c 92ead296 .config log report info WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2021/02/15 22:47 linux-4.14.y 2c8a3fceddf0 98682e5e .config log report info WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2021/02/05 17:45 linux-4.14.y 2c8a3fceddf0 23a562df .config log report info WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2021/01/20 14:39 linux-4.14.y 2762b48e9611 d4f4eca5 .config log report info WARNING in ext4_xattr_set_entry
ci2-linux-4-14 2021/01/09 02:15 linux-4.14.y 1752938529c6 c104d4a3 .config log report info
ci2-linux-4-14 2021/01/06 09:11 linux-4.14.y 1752938529c6 b1c228e1 .config log report info
ci2-linux-4-14 2021/01/05 15:58 linux-4.14.y 1752938529c6 a0234d98 .config log report info
ci2-linux-4-14 2020/12/09 18:22 linux-4.14.y 47cbf4cc32db 99917735 .config log report info
ci2-linux-4-14 2020/12/05 13:28 linux-4.14.y c196b3a9c83a 0ef84591 .config log report info
ci2-linux-4-14 2020/11/21 04:17 linux-4.14.y 8961076ed318 68068804 .config log report info
ci2-linux-4-14 2020/11/01 11:53 linux-4.14.y 2b7915014161 8bc4594f .config log report info
ci2-linux-4-14 2020/10/01 06:37 linux-4.14.y cbfa1702aaf6 a9767fb2 .config log report info