syzbot


KASAN: use-after-free Read in search_by_entry_key
Status: upstream: reported C repro on 2020/10/08 14:59
Reported-by: syzbot+83b6f7cf9922cae5c4d7@syzkaller.appspotmail.com
First crash: 18d, last: 14d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: use-after-free Read in search_by_entry_key C 2 29d 34d 0/1 upstream: reported C repro on 2020/09/22 02:22
linux-4.19 KASAN: use-after-free Read in search_by_entry_key C 1 19d 19d 0/1 upstream: reported C repro on 2020/10/06 18:07
Patch testing requests:
Created Duration User Patch Repo Result
2020/10/20 12:07 11m anmol.karan123@gmail.com patch upstream report log
2020/10/11 16:15 10m rkovhaev@gmail.com upstream report log

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2020/10/12 06:59 upstream 3dd0130f 4a77ae0b .config log report syz C akpm@linux-foundation.org, colin.king@canonical.com, jack@suse.cz, jeffm@suse.com, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-selinux-root 2020/10/11 10:09 upstream da690031 4a77ae0b .config log report syz C akpm@linux-foundation.org, colin.king@canonical.com, jack@suse.cz, jeffm@suse.com, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org
ci-upstream-kasan-gce-smack-root 2020/10/08 09:26 upstream c85fb28b 1880b4a9 .config log report syz C akpm@linux-foundation.org, colin.king@canonical.com, jack@suse.cz, jeffm@suse.com, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org