syzbot


BUG: MAX_LOCKDEP_CHAINS too low!
Status: fixed on 2020/07/17 17:58
Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com
Fix commit: e7511f560f54 bonding: remove useless stats_lock_key 1a33e10e4a95 net: partially revert dynamic lockdep key changes
First crash: 1164d, last: 505d

Cause bisection: the cause commit could be any of (bisect log):
  9211bfbff80a netfilter: add missing IS_ENABLED(CONFIG_BRIDGE_NETFILTER) checks to header-file.
  47e640af2e49 netfilter: add missing IS_ENABLED(CONFIG_NF_TABLES) check to header-file.
  a1b2f04ea527 netfilter: add missing includes to a number of header-files.
  0abc8bf4f284 netfilter: add missing IS_ENABLED(CONFIG_NF_CONNTRACK) checks to some header-files.
  bd96b4c75675 netfilter: inline four headers files into another one.
  43dd16efc7f2 netfilter: nf_tables: store data in offload context registers
  78458e3e08cd netfilter: add missing IS_ENABLED(CONFIG_NETFILTER) checks to some header-files.
  20a9379d9a03 netfilter: remove "#ifdef __KERNEL__" guards from some headers.
  bd8699e9e292 netfilter: nft_bitwise: add offload support
  2a475c409fe8 kbuild: remove all netfilter headers from header-test blacklist.
  7e59b3fea2a2 netfilter: remove unnecessary spaces
  1b90af292e71 ipvs: Improve robustness to the ipvs sysctl
  5785cf15fd74 netfilter: nf_tables: add missing prototypes.
  0a30ba509fde netfilter: nf_nat_proto: make tables static
  e84fb4b3666d netfilter: conntrack: use shared sysctl constants
  105333435b4f netfilter: connlabels: prefer static lock initialiser
  8c0bb7873815 netfilter: synproxy: rename mss synproxy_options field
  c162610c7db2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: MAX_LOCKDEP_CHAINS too low! 401 199d 797d 0/1 auto-closed as invalid on 2021/09/16 14:16
linux-4.19 BUG: MAX_LOCKDEP_CHAINS too low! 25632 now 960d 0/1 upstream: reported on 2019/04/20 01:26
upstream BUG: MAX_LOCKDEP_CHAINS too low! (2) C error 84838 25d 501d 22/22 fixed on 2021/11/10 00:50
upstream BUG: MAX_LOCKDEP_CHAINS too low! (3) 2071 3h46m 20d 0/22 upstream: reported on 2021/11/14 03:47
Patch testing requests:
Created Duration User Patch Repo Result
2020/04/27 19:18 17m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git lockdep OK
2020/04/15 19:44 17m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git lockdep OK
2020/04/15 18:52 4m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git lockdep error

Sample crash report:

Crashes (17240):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/05/18 09:04 upstream b9bbe6ed63b2 37bccd4e .config log report syz C
ci-upstream-kasan-gce-root 2019/10/20 23:31 upstream 4fe34d61a3a9 8c88c9c1 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/05/16 15:25 linux-next ac935d227366 37bccd4e .config log report syz C
ci-upstream-kasan-gce-root 2020/07/17 15:40 upstream 8882572675c1 9c812472 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/17 14:38 upstream 8882572675c1 9c812472 .config log report
ci-upstream-kasan-gce-root 2020/07/17 14:26 upstream 8882572675c1 9c812472 .config log report
ci-upstream-kasan-gce 2020/07/17 13:41 upstream 8882572675c1 54b3c45e .config log report
ci-upstream-kasan-gce 2020/07/17 13:28 upstream 8882572675c1 54b3c45e .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 23:58 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 23:38 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-root 2020/07/16 23:24 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-root 2020/07/16 23:12 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce 2020/07/16 22:57 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-root 2020/07/16 22:38 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 21:43 upstream f8456690ba8e f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 07:20 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 07:06 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-smack-root 2020/07/16 06:47 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 06:33 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce 2020/07/16 06:14 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/16 05:55 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-root 2020/07/15 21:42 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce 2020/07/15 19:10 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce 2020/07/15 18:09 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/15 12:30 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce 2020/07/15 12:10 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/15 11:26 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-kasan-gce-root 2018/09/27 19:41 upstream c307aaf3eb47 0c2fa87b .config log report
ci-upstream-kasan-gce-386 2020/07/17 17:21 upstream 8882572675c1 9c812472 .config log report
ci-upstream-kasan-gce-386 2020/07/17 15:15 upstream 8882572675c1 9c812472 .config log report
ci-upstream-kasan-gce-386 2020/07/17 11:24 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-386 2020/07/17 01:15 upstream f8456690ba8e 54b3c45e .config log report
ci-upstream-kasan-gce-386 2020/07/16 21:59 upstream f8456690ba8e f3bec699 .config log report
ci-upstream-kasan-gce-386 2020/07/16 18:58 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-386 2020/07/16 05:46 upstream 994e99a96c9b f3bec699 .config log report
ci-upstream-kasan-gce-386 2020/07/15 11:58 upstream e9919e11e219 f3bec699 .config log report
ci-upstream-net-this-kasan-gce 2020/07/17 03:39 net 340746398b67 54b3c45e .config log report
ci-upstream-net-this-kasan-gce 2020/07/16 21:04 net 841eb4012cef f3bec699 .config log report
ci-upstream-net-this-kasan-gce 2020/07/16 14:32 net 841eb4012cef f3bec699 .config log report
ci-upstream-net-this-kasan-gce 2020/07/16 09:49 net 841eb4012cef f3bec699 .config log report
ci-upstream-net-this-kasan-gce 2020/07/16 01:32 net 1d61e21852d3 f3bec699 .config log report
ci-upstream-net-this-kasan-gce 2020/07/15 13:36 net 1d61e21852d3 f3bec699 .config log report
ci-upstream-bpf-kasan-gce 2020/06/19 16:43 bpf 29fcb05bbf1a bc258b50 .config log report
ci-upstream-net-kasan-gce 2020/07/17 02:31 net-next 632ca50f2cbd 54b3c45e .config log report
ci-upstream-net-kasan-gce 2020/07/16 17:40 net-next 8635764bcf0f f3bec699 .config log report
ci-upstream-net-kasan-gce 2020/07/16 10:51 net-next 8635764bcf0f f3bec699 .config log report
ci-upstream-net-kasan-gce 2020/07/15 16:44 net-next 4ff91fa0a3ac f3bec699 .config log report
ci-upstream-bpf-next-kasan-gce 2020/07/01 08:39 bpf-next cb8e59cc8720 917afeaa .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/17 15:29 linux-next 4c43049f19a2 9c812472 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/17 15:08 linux-next 4c43049f19a2 9c812472 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/17 14:49 linux-next 4c43049f19a2 9c812472 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/17 07:08 linux-next 4c43049f19a2 54b3c45e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/16 16:30 linux-next 4c43049f19a2 f3bec699 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/16 15:36 linux-next 4c43049f19a2 f3bec699 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/15 23:56 linux-next ca0e494af5ed f3bec699 .config log report