syzbot


KASAN: use-after-free Write in rxrpc_put_bundle
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+d57aaf84dd8a550e6d91@syzkaller.appspotmail.com
Fix commit: f3af4ad1e08a rxrpc: Fix bundle counting for exclusive connections
First crash: 401d, last: 377d

Cause bisection: introduced by (bisect log) :
commit 245500d853e9f20036cec7df4f6984ece4c6bf26
Author: David Howells <dhowells@redhat.com>
Date: Wed Jul 1 10:15:32 2020 +0000

  rxrpc: Rewrite the client connection manager

Crash: kernel BUG at net/rxrpc/conn_object.c:LINE! (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Write in rxrpc_put_bundle (2) 1 114d 110d 0/22 upstream: reported on 2021/07/03 05:29
Patch testing requests:
Created Duration User Patch Repo Result
2020/09/29 21:41 21m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git f61e0184e845b7e48adafb0535b4e12771311a84 OK
2020/09/18 10:14 17m yepeilin.cs@gmail.com patch https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master OK

Sample crash report:

Crashes (229):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2020/09/15 11:31 net-next ed6d9b022813 6989d6f6 .config log report syz C
ci-upstream-net-kasan-gce 2020/10/09 12:03 net-next 9d49aea13f1e 92390980 .config log report info
ci-upstream-net-kasan-gce 2020/10/08 07:50 net-next 9faebeb2d800 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/07 23:08 net-next 9faebeb2d800 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/07 12:27 net-next 9faebeb2d800 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/07 11:08 net-next 9faebeb2d800 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/07 09:57 bpf-next 67ed375530e2 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/07 07:47 bpf-next 67ed375530e2 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/07 05:14 net-next 9faebeb2d800 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/07 01:23 net-next 8b0308fe319b 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 22:38 net-next 8b0308fe319b 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 21:19 net-next 8b0308fe319b 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 19:56 net-next 8b0308fe319b 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 19:35 net-next 8b0308fe319b 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 18:27 bpf-next dca4121cdc48 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 17:08 bpf-next dca4121cdc48 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 13:51 bpf-next dca4121cdc48 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 11:45 net-next c2568c8c9e63 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 10:42 bpf-next 8731745e4821 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/06 07:32 net-next c2568c8c9e63 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 06:00 bpf-next 8731745e4821 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/06 01:33 bpf-next 8731745e4821 1880b4a9 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/05 21:55 bpf-next 8731745e4821 1880b4a9 .config log report info
ci-upstream-net-kasan-gce 2020/10/05 12:22 net-next f5083d0cee08 5ef9c291 .config log report info
ci-upstream-net-kasan-gce 2020/10/05 11:54 net-next f5083d0cee08 5ef9c291 .config log report info
ci-upstream-net-kasan-gce 2020/10/05 10:31 net-next f5083d0cee08 5ef9c291 .config log report info
ci-upstream-net-kasan-gce 2020/10/05 06:21 net-next f5083d0cee08 5ef9c291 .config log report info
ci-upstream-net-kasan-gce 2020/10/05 02:13 net-next f5083d0cee08 5ef9c291 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/04 09:25 bpf-next 1028ae406999 1a3f9408 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 20:46 net-next 678cdd496708 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 19:07 net-next 678cdd496708 2653fa43 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/03 16:32 bpf-next 1028ae406999 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 12:30 net-next 678cdd496708 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 10:58 net-next 678cdd496708 2653fa43 .config log report info
ci-upstream-net-kasan-gce 2020/10/03 06:01 net-next 678cdd496708 2653fa43 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/03 04:55 bpf-next 1028ae406999 2653fa43 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/03 02:21 bpf-next 360f89874635 4969d6ca .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/02 22:59 bpf-next 360f89874635 4969d6ca .config log report info
ci-upstream-net-kasan-gce 2020/10/02 20:03 net-next 360f89874635 4969d6ca .config log report info
ci-upstream-net-kasan-gce 2020/10/02 19:55 net-next 360f89874635 4969d6ca .config log report info
ci-upstream-net-kasan-gce 2020/10/02 18:54 net-next 360f89874635 4969d6ca .config log report info
ci-upstream-net-kasan-gce 2020/10/02 17:37 net-next 360f89874635 4969d6ca .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/02 15:37 bpf-next 360f89874635 4969d6ca .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/02 13:52 bpf-next 6208689fb3e6 9602ddf4 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/07 08:34 linux-next a804ab086e9d 1880b4a9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/07 04:13 linux-next a804ab086e9d 1880b4a9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/07 00:06 linux-next a804ab086e9d 1880b4a9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/06 08:33 linux-next 2172e358cd17 1880b4a9 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/03 08:37 linux-next 2172e358cd17 2653fa43 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/10/02 11:28 linux-next d39294091fee 9602ddf4 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/15 09:38 linux-next 6b02addb1d17 6989d6f6 .config log report info