syzbot


KASAN: null-ptr-deref Write in choke_reset
Status: internal: reported C repro on 2020/04/19 07:45
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 8738c85c sch_choke: avoid potential panic in choke_reset()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 84d, last: 51d

Cause bisection: the bug happens on the oldest tested release
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 KASAN: null-ptr-deref Write in choke_reset C fix 236 59d 84d 1/1 fixed on 2020/06/13 11:02
linux-4.14 KASAN: null-ptr-deref Write in choke_reset C fix 283 53d 83d 1/1 fixed on 2020/06/19 13:29

Sample crash report:

Crashes (1441):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce 2020/04/20 09:12 upstream 0fe5f9ca 9f7c6d12 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce 2020/04/19 15:02 upstream 50cc09c1 6dfd45e1 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce 2020/04/19 14:32 upstream 50cc09c1 6dfd45e1 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-386 2020/04/21 15:12 upstream ae83d0b4 2e44d63e .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-386 2020/04/20 22:59 upstream ae83d0b4 347a5dc3 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-this-kasan-gce 2020/04/20 11:07 net 9bacd256 9f7c6d12 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-this-kasan-gce 2020/04/19 10:13 net 441870ee 365fba24 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-this-kasan-gce 2020/04/19 09:48 net 441870ee 365fba24 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/04/20 09:01 net-next 0fde6e3b 9f7c6d12 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/04/19 11:07 net-next 513a24ff 365fba24 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/04/19 07:58 net-next 513a24ff 365fba24 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/18 03:23 linux-next ac935d22 37bccd4e .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/09 10:27 linux-next ac935d22 e97b06d3 .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/08 16:52 linux-next ac935d22 2b98fdbc .config log report syz C davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-selinux-root 2020/05/07 05:56 upstream 3c40cdb0 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce 2020/05/06 19:14 upstream 3c40cdb0 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-smack-root 2020/05/06 18:13 upstream 3c40cdb0 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-root 2020/05/06 12:53 upstream dc56c5ac 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-kasan-gce-386 2020/05/06 20:11 upstream 3c40cdb0 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-this-kasan-gce 2020/04/28 09:16 net 52a90612 0ce7569e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/05/07 08:39 net-next 2f864990 4618eb2d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-net-kasan-gce 2020/04/19 07:38 net-next 513a24ff 365fba24 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/22 12:34 linux-next ac935d22 5afa2ddd .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/22 09:08 linux-next ac935d22 5afa2ddd .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 23:25 linux-next ac935d22 1f30020f .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 21:15 linux-next ac935d22 1f30020f .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 15:27 linux-next ac935d22 1f30020f .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 12:15 linux-next ac935d22 1f30020f .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 08:20 linux-next ac935d22 c61086ab .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/21 00:46 linux-next ac935d22 c61086ab .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/20 23:11 linux-next ac935d22 1255f02a .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/20 12:12 linux-next ac935d22 1255f02a .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/20 07:54 linux-next ac935d22 67fa1f59 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/20 01:09 linux-next ac935d22 67fa1f59 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/19 23:58 linux-next ac935d22 67fa1f59 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/19 17:41 linux-next ac935d22 6d882fd2 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/19 11:48 linux-next ac935d22 6d882fd2 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/19 08:39 linux-next ac935d22 684d3606 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/18 13:32 linux-next ac935d22 684d3606 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/18 11:04 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/18 06:42 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/18 01:04 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/17 16:40 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/17 01:41 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/16 18:29 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/16 16:13 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/16 10:15 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/16 01:57 linux-next ac935d22 37bccd4e .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/15 14:02 linux-next ac935d22 d7f9fffa .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/14 11:32 linux-next ac935d22 2d572622 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/14 10:52 linux-next ac935d22 2d572622 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/13 23:03 linux-next ac935d22 a885920d .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/13 16:20 linux-next ac935d22 9a6d42fb .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/12 21:43 linux-next ac935d22 a44eb8f7 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/12 19:10 linux-next ac935d22 160c7698 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/12 15:59 linux-next ac935d22 160c7698 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/12 09:15 linux-next ac935d22 160c7698 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/11 21:55 linux-next ac935d22 9eb09c40 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/11 09:37 linux-next ac935d22 f8f57555 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/11 00:23 linux-next ac935d22 8742a2b9 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/10 14:47 linux-next ac935d22 8742a2b9 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/10 03:10 linux-next ac935d22 8742a2b9 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com
ci-upstream-linux-next-kasan-gce-root 2020/05/10 01:32 linux-next ac935d22 88cb3e92 .config log report davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, xiyou.wangcong@gmail.com