syzbot


KASAN: slab-out-of-bounds Read in tcf_exts_destroy
Status: fixed on 2020/03/12 12:23
Reported-by: syzbot+ce5af60a6faa9cb4d112@syzkaller.appspotmail.com
Fix commit: 6cb448ee net_sched: fix an OOB access in cls_tcindex
First crash: 223d, last: 110d

Fix bisection: fixed by (bisect log):

commit 6cb448ee493c8a514c9afa0c346f3f5b3227de85
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Mon Feb 3 05:14:35 2020 +0000

  net_sched: fix an OOB access in cls_tcindex

similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 KASAN: slab-out-of-bounds Read in tcf_exts_destroy C fix 1 111d 227d 1/1 fixed on 2020/03/11 23:02
upstream KASAN: slab-out-of-bounds Read in tcf_exts_destroy C cause+fix 8 226d 128d 16/17 fixed on 2020/02/18 14:31

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci2-linux-4-14 2019/10/21 06:22 linux-4.14.y b98aebd2 8c88c9c1 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com