syzbot


KASAN: use-after-free Read in corrupted (4)
Status: upstream: reported syz repro on 2020/08/11 12:47
Reported-by: syzbot+48135e34de22e3a82c99@syzkaller.appspotmail.com
First crash: 164d, last: 1d10h

Cause bisection: introduced by (bisect log) [release commit]:
commit c470abd4fde40ea6a0846a2beab642a578c0b8cd
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Feb 19 22:34:00 2017 +0000

  Linux 4.10

Crash: KASAN: use-after-free Read in lock_sock_nested (log)
Repro: syz .config
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in corrupted C 2 979d 982d 9/17 fixed on 2018/07/09 18:05
linux-4.14 KASAN: use-after-free Read in corrupted syz 1 4d19h 65d 0/1 upstream: reported syz repro on 2020/11/15 10:58
android-414 KASAN: use-after-free Read in corrupted C 2 533d 534d 0/1 public: reported C repro on 2019/08/03 12:36
upstream KASAN: use-after-free Read in corrupted (3) syz done 1 573d 573d 13/17 fixed on 2019/08/27 17:15
upstream KASAN: use-after-free Read in corrupted (2) syz 1 635d 635d 0/17 closed as invalid on 2019/04/25 11:05

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-kasan-gce-selinux-root 2021/01/18 02:01 upstream 19c329f6 cef5ae68 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/12/18 22:56 upstream 3644e2d2 cef5ae68 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/11/12 12:26 upstream 3d5e28bf cef5ae68 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/10/13 04:14 upstream 865c50e1 cef5ae68 .config log report syz
Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-selinux-root 2020/08/24 08:56 upstream cb957121 cef5ae68 .config log report syz linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org
ci-upstream-kasan-gce-selinux-root 2020/08/07 12:39 upstream d6efb3ac cb436c69 .config log report syz linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/08/12 00:11 linux-next 4c9b89d8 bacaf5fa .config log report syz linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, will@kernel.org