syzbot


WARNING: refcount bug in sctp_wfree
Status: fixed on 2020/05/10 10:41
Reported-by: syzbot+cea71eec5d6de256d54d@syzkaller.appspotmail.com
Fix commit: 5c3e82fe sctp: fix refcount bug in sctp_wfree
First crash: 268d, last: 246d

Cause bisection: introduced by (bisect log) :
commit fb041bb7c0a918b95c6889fc965cdc4a75b4c0ca
Author: Will Deacon <will@kernel.org>
Date: Thu Nov 21 11:59:00 2019 +0000

  locking/refcount: Consolidate implementations of refcount_t

Crash: WARNING: refcount bug in sock_wfree (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2020/03/26 16:17 17m anenbupt@gmail.com patch upstream OK
2020/03/22 06:41 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git datamsg_list OK
2020/03/22 04:12 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_for_each_tx_datachunk OK
2020/03/22 00:33 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree OK
2020/03/21 15:08 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/20 11:11 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree_refcount_bug OK
2020/03/20 02:45 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/19 15:00 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/19 11:08 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/19 04:34 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/19 03:24 4m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree error
2020/03/18 11:36 12m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/18 03:22 14m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/18 01:34 12m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/17 16:11 11m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/17 15:17 11m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/17 11:02 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/17 07:43 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/17 04:26 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree_refcount_bug OK
2020/03/15 23:06 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree_refcount_bug OK
2020/03/15 08:34 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree_refcount_bug OK
2020/03/15 07:59 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree_refcount_bug report log
2020/03/15 07:19 17m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree OK
2020/03/15 06:09 16m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/15 02:49 4m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree error
2020/03/15 01:28 13m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/15 00:21 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/14 15:46 0m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git scup_wfree error
2020/03/14 13:41 4m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree error
2020/03/14 11:17 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/14 05:10 9m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree report log
2020/03/14 02:55 3m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git sctp_wfree error
2020/03/14 02:54 0m anenbupt@gmail.com https://github.com/hqj/hqjagain_test.git scup_wfree error

Sample crash report:

Crashes (20):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2020/03/28 01:15 upstream 527630fb 831e9a81 .config log report syz C davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/10 00:46 upstream 2c523b34 35f53e45 .config log report syz C davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/31 02:37 upstream 673b41e0 c8d1cc20 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/28 06:44 upstream 69c5eea3 831e9a81 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/25 15:02 upstream 76ccd234 41f049cc .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/22 12:43 upstream b74b991f 78267cec .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/22 11:44 upstream b74b991f 78267cec .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/22 11:42 upstream b74b991f 78267cec .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/21 13:10 upstream 5ad0ec0b 4288d95e .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/21 13:09 upstream 5ad0ec0b 4288d95e .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/19 15:09 upstream 5076190d 2c31c529 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/19 15:08 upstream 5076190d 2c31c529 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/19 15:08 upstream 5076190d 2c31c529 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/19 15:00 upstream 5076190d 2c31c529 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/09 22:20 upstream 2c523b34 35f53e45 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/09 22:20 upstream 2c523b34 35f53e45 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/09 22:20 upstream 2c523b34 35f53e45 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/09 22:20 upstream 2c523b34 35f53e45 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-smack-root 2020/03/09 21:19 upstream 2c523b34 35f53e45 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com
ci-upstream-kasan-gce-386 2020/03/24 06:21 upstream 979e52ca 33e14df3 .config log report davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, vyasevich@gmail.com