syzbot


KASAN: use-after-free Read in sock_def_write_space (2)
Status: fixed on 2020/09/16 22:51
Reported-by: syzbot+6720d64f31c081c2f708@syzkaller.appspotmail.com
Fix commit: af9f691f0f5b qrtr: orphan socket in qrtr_release()
First crash: 501d, last: 443d

Cause bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in sock_def_write_space (3) 21 197d 434d 0/22 auto-closed as invalid on 2021/08/18 10:16
upstream KASAN: use-after-free Read in sock_def_write_space C done 67 501d 867d 17/22 fixed on 2020/07/20 08:03
Patch testing requests:
Created Duration User Patch Repo Result
2020/07/24 14:18 16m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net OK
2020/07/24 02:40 16m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net OK

Sample crash report:

Crashes (29):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/07/25 00:43 upstream f37e99aca03f 554af388 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/07/24 19:04 upstream f37e99aca03f 554af388 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/07/23 06:27 upstream 8c26c87b0532 340ea530 .config log report syz C
ci-upstream-kasan-gce 2020/07/22 20:26 upstream 4fa640dc5230 128cd85f .config log report syz C
ci-upstream-kasan-gce-386 2020/07/20 18:56 upstream 5714ee50bb43 4285ffa3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/07/24 23:36 linux-next 26027945c94a 554af388 .config log report syz C
ci-qemu-upstream 2020/09/16 09:06 upstream fc4f28bb3daf 18d7d030 .config log report info
ci-qemu-upstream 2020/09/12 10:46 upstream 729e3d091984 21d289c2 .config log report
ci-qemu-upstream 2020/09/11 20:31 upstream e8878ab82545 79fb24e2 .config log report
ci-qemu-upstream 2020/09/09 06:19 upstream fffe3ae0ee84 0ea7a887 .config log report
ci-qemu-upstream 2020/09/08 07:26 upstream fffe3ae0ee84 abf9ba4f .config log report
ci-qemu-upstream 2020/09/08 06:39 upstream fffe3ae0ee84 abf9ba4f .config log report
ci-qemu-upstream 2020/09/06 23:59 upstream fffe3ae0ee84 abf9ba4f .config log report
ci-qemu-upstream 2020/09/05 16:29 upstream fffe3ae0ee84 abf9ba4f .config log report
ci-qemu-upstream 2020/09/03 23:59 upstream fffe3ae0ee84 abf9ba4f .config log report
ci-qemu-upstream 2020/08/07 02:35 upstream fffe3ae0ee84 cb436c69 .config log report
ci-upstream-kasan-gce-root 2020/07/25 07:06 upstream 68845a55c31b 1f7cc1ca .config log report
ci-upstream-kasan-gce 2020/07/23 17:47 upstream d15be546031c 70c104a1 .config log report
ci-qemu-upstream 2020/07/23 16:35 upstream d15be546031c 70c104a1 .config log report
ci-qemu-upstream-386 2020/09/07 11:45 upstream f4d51dffc6c0 abf9ba4f .config log report
ci-qemu-upstream-386 2020/08/19 03:47 upstream 00e4db51259a e1c29030 .config log report
ci-upstream-kasan-gce-386 2020/07/20 18:33 upstream 5714ee50bb43 4285ffa3 .config log report
ci-upstream-net-this-kasan-gce 2020/09/05 21:28 net cc8e58f8325c abf9ba4f .config log report
ci-upstream-net-this-kasan-gce 2020/09/01 03:45 net bb8872a1e6bc d5a3ae1f .config log report
ci-upstream-net-this-kasan-gce 2020/08/01 03:25 net 85496a292241 d895b3be .config log report
ci-upstream-net-kasan-gce 2020/09/12 16:21 net-next 5a6bd84f8154 ce441f06 .config log report
ci-upstream-net-kasan-gce 2020/09/01 08:39 net-next c30a3c957c88 d5a3ae1f .config log report
ci-upstream-net-kasan-gce 2020/08/11 00:28 net-next bfdd5aaa54b0 7adc7b65 .config log report
ci-upstream-net-kasan-gce 2020/08/04 00:48 net-next bd0b33b24897 196277c4 .config log report