syzbot


possible deadlock in tty_port_close_start
Status: upstream: reported C repro on 2020/02/13 04:57
Reported-by: syzbot+044000e5acdb5e1d5eed@syzkaller.appspotmail.com
First crash: 435d, last: 17d

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

Fix bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 possible deadlock in tty_port_close_start C 44 12d 442d 0/1 upstream: reported C repro on 2020/02/05 23:51
linux-4.14 possible deadlock in tty_port_close_start C 46 6h44m 432d 0/1 upstream: reported C repro on 2020/02/15 19:33

Sample crash report:

Crashes (41):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/02/13 06:30 upstream dcc0b490 98682e5e .config log report syz C possible deadlock in tty_port_close_start
ci-qemu-upstream 2020/06/13 18:52 upstream 435faf5c dbce178a .config log report syz C
ci-upstream-kasan-gce-root 2020/02/17 14:42 upstream 11a48a5a 2b411596 .config log report syz C
ci-upstream-kasan-gce-root 2021/04/06 05:16 upstream 0a50438c 6a81331a .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-selinux-root 2021/03/27 19:53 upstream 0f4498ce a8529b82 .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-selinux-root 2021/03/24 04:02 upstream 7acac4b3 e613994b .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-root 2021/03/22 00:27 upstream 5ee96fa9 bea32f74 .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-root 2021/03/14 03:54 upstream 88fe4924 4a003785 .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-root 2021/03/10 05:50 upstream 144c79ef 26967e35 .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/03/07 09:34 upstream 280d542f c599ed12 .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-selinux-root 2021/03/02 09:07 upstream fe07bfda 183afb6c .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/02/27 15:02 upstream 3fb6d0e0 4c37c133 .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/02/20 21:46 upstream f40ddce8 3e5ed8b4 .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/02/19 02:00 upstream f40ddce8 14052202 .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/02/15 01:34 upstream f40ddce8 98682e5e .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream 2021/02/03 16:58 upstream 3aaf0a27 624dad51 .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-root 2021/01/19 10:41 upstream 1e2a199f 63631df1 .config log report info possible deadlock in tty_port_close_start
ci-qemu2-arm64 2021/04/03 09:08 upstream 0a84c2e4 6a81331a .config log report info possible deadlock in tty_port_close_start
ci-qemu-upstream-386 2021/02/09 03:08 upstream e0756cfc 2bd9619f .config log report info possible deadlock in tty_port_close_start
ci-upstream-linux-next-kasan-gce-root 2021/04/06 08:14 linux-next 454c576c 6a81331a .config log report info possible deadlock in tty_port_close_start
ci-upstream-linux-next-kasan-gce-root 2021/03/31 12:22 linux-next 93129492 6a81331a .config log report info possible deadlock in tty_port_close_start
ci-upstream-kasan-gce-root 2021/01/12 15:26 upstream a0d54b4f 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/12 07:05 upstream a0d54b4f 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 15:48 upstream 7c53f6b6 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 06:45 upstream 0653161f 2c1f2513 .config log report info
ci-upstream-kasan-gce-root 2021/01/03 04:18 upstream 3516bd72 79264ae3 .config log report info
ci-upstream-kasan-gce-root 2020/12/03 17:10 upstream 34816d20 e6b0d314 .config log report info
ci-upstream-kasan-gce-root 2020/11/17 09:07 upstream 9c87c9f4 1bf9a662 .config log report info
ci-upstream-kasan-gce-root 2020/09/06 23:37 upstream dd9fb9bb abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/08/20 10:50 upstream 7eac66d0 ed282a3a .config log report
ci-upstream-kasan-gce-root 2020/07/28 02:35 upstream 92ed3019 cb93dc6a .config log report
ci-upstream-kasan-gce-root 2020/06/18 05:18 upstream 7ae77150 b9f3810b .config log report
ci-upstream-kasan-gce-root 2020/06/02 03:38 upstream 9bf9511e a0331e89 .config log report
ci-upstream-kasan-gce-selinux-root 2020/05/30 19:59 upstream 86852175 6f3e1c7c .config log report
ci-upstream-kasan-gce-root 2020/03/27 14:14 upstream f3e69428 7d95711b .config log report
ci-upstream-kasan-gce-root 2020/02/28 13:35 upstream f8788d86 59b57593 .config log report
ci-upstream-kasan-gce-root 2020/02/12 23:17 upstream f2850dd5 84f4fc8a .config log report
ci-upstream-linux-next-kasan-gce-root 2020/12/04 21:07 linux-next 0eedceaf 20366b87 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/09/01 01:50 linux-next b36c9697 d5a3ae1f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/12 12:40 linux-next bc09acc9 bb3e5fe6 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/20 00:52 linux-next 1d7f85df b690a6e3 .config log report