syzbot


WARNING in pskb_expand_head
Status: upstream: reported C repro on 2021/01/24 20:51
Reported-by: syzbot+a1c17e56a8a62294c714@syzkaller.appspotmail.com
First crash: 39d, last: 1d14h

Cause bisection: introduced by (bisect log) :
commit 3226b158e67cfaa677fd180152bfb28989cb2fac
Author: Eric Dumazet <edumazet@google.com>
Date: Wed Jan 13 16:18:19 2021 +0000

  net: avoid 32 x truesize under-estimation for tiny skbs

Crash: WARNING in pskb_expand_head (log)
Repro: C syz .config

Sample crash report:

Crashes (13):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-next-kasan-gce 2021/01/20 21:48 bpf-next 7d68e382 d4f4eca5 .config log report syz C WARNING in pskb_expand_head
ci-upstream-kasan-gce-smack-root 2021/02/19 22:05 upstream f40ddce8 f689d40a .config log report info WARNING in pskb_expand_head
ci-upstream-kasan-gce-smack-root 2021/02/18 02:31 upstream f40ddce8 14052202 .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-kasan-gce 2021/02/19 22:00 bpf 57baf8cc f689d40a .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-kasan-gce 2021/02/10 15:45 bpf b8776f14 2bd9619f .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-kasan-gce 2021/02/01 17:42 bpf 06cc6e5d e6b95f32 .config log report info WARNING in pskb_expand_head
ci-upstream-net-kasan-gce 2021/02/27 09:46 net-next d310ec03 4c37c133 .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/02/27 01:35 bpf-next a7d24d95 4c37c133 .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/02/23 20:04 bpf-next 6b12bb20 fcc6d71b .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/02/18 02:21 bpf-next 7b1e385c 14052202 .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/02/10 15:56 bpf-next ee5cc036 2bd9619f .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/01/26 14:11 bpf-next 190d1c92 52e37319 .config log report info WARNING in pskb_expand_head
ci-upstream-bpf-next-kasan-gce 2021/01/20 20:42 bpf-next 7d68e382 d4f4eca5 .config log report info WARNING in pskb_expand_head