syzbot

 sign-in | mailing list | source | docs
🐞 Open [948] 🐞 Fixed [4019] 🐞 Invalid [8930] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes

KASAN: use-after-free Read in corrupted (4)

Status: upstream: reported C repro on 2020/08/11 12:47
Reported-by: syzbot+48135e34de22e3a82c99@syzkaller.appspotmail.com
First crash: 782d, last: 84d

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

Fix bisection: failed (bisect log)
similar bugs (15):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in corrupted C 2 1596d 1599d 9/24 fixed on 2018/07/09 18:05
linux-4.14 KASAN: use-after-free Read in corrupted syz error 1 211d 682d 0/1 upstream: reported syz repro on 2020/11/15 10:58
android-414 KASAN: use-after-free Read in corrupted C 2 1151d 1152d 0/1 public: reported C repro on 2019/08/03 12:36
upstream KASAN: use-after-free Read in corrupted (3) syz done 1 1190d 1190d 13/24 fixed on 2019/08/27 17:15
upstream KASAN: use-after-free Read in corrupted (2) syz 1 1252d 1252d 0/24 closed as invalid on 2019/04/25 11:05
upstream KMSAN: uninit-value in corrupted syz 2 320d 320d 0/24 closed as invalid on 2021/11/18 13:55
android-54 BUG: unable to handle kernel NULL pointer dereference in corrupted C 202 6h26m 659d 0/2 upstream: reported C repro on 2020/12/07 19:36
upstream BUG: unable to handle kernel paging request in corrupted (3) C done 45 330d 499d 22/24 fixed on 2021/11/10 00:50
linux-4.19 BUG: corrupted list in corrupted C error 4 92d 731d 0/1 upstream: reported C repro on 2020/09/27 07:51
upstream general protection fault in corrupted (2) C 2 1359d 1362d 12/24 fixed on 2019/03/06 07:43
upstream general protection fault in corrupted syz 1 1523d 1523d 0/24 closed as invalid on 2018/07/29 11:55
android-54 general protection fault in corrupted C 1 933d 933d 0/2 closed as invalid on 2021/10/13 11:17
upstream BUG: unable to handle kernel paging request in corrupted C 10 1365d 1627d 0/24 closed as invalid on 2019/06/11 06:50
android-54 BUG: unable to handle kernel paging request in corrupted C 1 899d 899d 0/2 closed as invalid on 2021/10/13 14:32
upstream BUG: unable to handle kernel paging request in corrupted (2) syz done 1 1167d 1167d 0/24 closed as dup on 2019/07/23 07:35
Patch testing requests:
Created Duration User Patch Repo Result
2022/05/23 00:09 17m hdanton@sina.com upstream OK

Sample crash report:
traps: syz-executor322[3610] general protection fault ip:0 sp:0 error:0

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2022/07/06 13:09 upstream e35e5b6f695d bff65f44 .config log report syz C general protection fault in corrupted
ci-upstream-kasan-gce-root 2022/05/22 23:01 upstream eaea45fc0e7b 7268fa62 .config log report syz C general protection fault in corrupted
ci-upstream-net-this-kasan-gce 2022/06/03 19:46 net 58f9d52ff689 eee80d3c .config log report syz C BUG: unable to handle kernel paging request in corrupted
ci-upstream-net-kasan-gce 2022/06/03 18:49 net-next 58f9d52ff689 eee80d3c .config log report syz C BUG: unable to handle kernel paging request in corrupted
ci-upstream-linux-next-kasan-gce-root 2022/07/03 10:19 linux-next cb71b93c2dc3 1434eec0 .config log report syz C general protection fault in corrupted
ci-upstream-linux-next-kasan-gce-root 2022/03/08 04:55 linux-next 91265a6da44d 7bdd8b2c .config log report syz KASAN: use-after-free Read in corrupted
ci-upstream-kasan-gce-selinux-root 2020/08/24 08:56 upstream cb95712138ec cef5ae68 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/08/07 12:39 upstream d6efb3ac3e6c cb436c69 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/08/12 00:11 linux-next 4c9b89d8981b bacaf5fa .config log report syz
* Struck through repros no longer work on HEAD.