syzbot


possible deadlock in bond_get_stats (3)
Status: fixed on 2020/04/15 17:19
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: b3e80d44f5b1 bonding: fix lockdep warning in bond_get_stats()
First crash: 657d, last: 657d

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-4.19 possible deadlock in bond_get_stats C 489 4h05m 685d 0/1 upstream: reported C repro on 2020/01/24 05:20
upstream possible deadlock in bond_get_stats C 11 1224d 1228d 9/22 fixed on 2018/08/08 18:10
upstream possible deadlock in bond_get_stats (2) 2 933d 1101d 0/22 auto-closed as invalid on 2019/10/25 08:51
linux-4.14 possible deadlock in bond_get_stats C 101 25d 689d 0/1 upstream: reported C repro on 2020/01/20 04:38

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2020/02/21 05:08 net 0d5b8d705565 bd2a74a3 .config log report syz
ci-upstream-net-this-kasan-gce 2020/02/21 04:21 net 0d5b8d705565 bd2a74a3 .config log report