syzbot

 sign-in | mailing list | source | docs
🐞 Open [950] ≡ Subsystems 🐞 Fixed [4575] 🐞 Invalid [10560] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

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: 1036d, last: 41d

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 (error log, bisect log)
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
KASAN: use-after-free Read in corrupted (4) 2 (4) 2022/06/01 13:51
▶ ▼ Similar bugs (15)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in corrupted mm C 2 1851d 1853d 9/24 fixed on 2018/07/09 18:05
linux-4.14 KASAN: use-after-free Read in corrupted syz error 1 466d 936d 0/1 upstream: reported syz repro on 2020/11/15 10:58
android-414 KASAN: use-after-free Read in corrupted C 2 1405d 1406d 0/1 public: reported C repro on 2019/08/03 12:36
upstream KASAN: use-after-free Read in corrupted (3) kernel syz done 1 1444d 1444d 13/24 fixed on 2019/08/27 17:15
upstream KASAN: use-after-free Read in corrupted (2) syz 1 1506d 1506d 0/24 closed as invalid on 2019/04/25 11:05
upstream KMSAN: uninit-value in corrupted syz 2 574d 574d 0/24 closed as invalid on 2021/11/18 13:55
android-54 BUG: unable to handle kernel NULL pointer dereference in corrupted C 252 23h32m 914d 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 585d 753d 22/24 fixed on 2021/11/10 00:50
linux-4.19 BUG: corrupted list in corrupted C error 4 347d 985d 0/1 upstream: reported C repro on 2020/09/27 07:51
upstream general protection fault in corrupted (2) perf C 2 1614d 1617d 12/24 fixed on 2019/03/06 07:43
upstream general protection fault in corrupted syz 1 1777d 1777d 0/24 closed as invalid on 2018/07/29 11:55
android-54 general protection fault in corrupted C 1 1187d 1187d 0/2 closed as invalid on 2021/10/13 11:17
upstream BUG: unable to handle kernel paging request in corrupted C 10 1620d 1882d 0/24 closed as invalid on 2019/06/11 06:50
android-54 BUG: unable to handle kernel paging request in corrupted C 1 1153d 1153d 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 1422d 1421d 0/24 closed as dup on 2019/07/23 07:35
▶ ▼ Last patch testing requests (11)
Created Duration User Patch Repo Result
2023/04/21 15:57 21m retest repro linux-next report log
2023/04/21 15:39 22m retest repro linux-next report log
2023/04/13 06:11 16m retest repro upstream report log
2023/01/23 08:32 22m (2) retest repro upstream OK log
2023/01/23 12:32 20m retest repro upstream OK log
2023/01/23 08:32 21m retest repro net-old error
2023/01/23 08:32 20m retest repro net-next-old OK log
2023/01/23 07:32 20m retest repro upstream OK log
2022/11/25 23:30 18m retest repro linux-next OK log
2022/11/25 22:30 19m retest repro linux-next OK log
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 (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2022/07/06 13:09 upstream e35e5b6f695d bff65f44 .config console log report syz C ci-upstream-kasan-gce-smack-root general protection fault in corrupted
2022/06/03 19:46 net-old 58f9d52ff689 eee80d3c .config console log report syz C ci-upstream-net-this-kasan-gce BUG: unable to handle kernel paging request in corrupted
2022/07/03 10:19 linux-next cb71b93c2dc3 1434eec0 .config console log report syz C ci-upstream-linux-next-kasan-gce-root general protection fault in corrupted
2023/04/29 23:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 62df2017 .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel paging request in corrupted
2022/05/22 23:01 upstream eaea45fc0e7b 7268fa62 .config console log report syz C ci-upstream-kasan-gce-root general protection fault in corrupted
2022/06/03 18:49 net-next-old 58f9d52ff689 eee80d3c .config strace log report syz C ci-upstream-net-kasan-gce BUG: unable to handle kernel paging request in corrupted
2022/03/08 04:55 linux-next 91265a6da44d 7bdd8b2c .config console log report syz ci-upstream-linux-next-kasan-gce-root KASAN: use-after-free Read in corrupted
2020/08/24 08:56 upstream cb95712138ec cef5ae68 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/08/07 12:39 upstream d6efb3ac3e6c cb436c69 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/08/12 00:11 linux-next 4c9b89d8981b bacaf5fa .config console log report syz ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.