syzbot


KASAN: vmalloc-out-of-bounds Read in compat_copy_entries
Status: fixed on 2020/02/14 01:19
Reported-by: syzbot+f68108fed972453a0ad4@syzkaller.appspotmail.com
Fix commit: e608f631f0ba netfilter: ebtables: compat: reject all padding in matches/watchers
First crash: 725d, last: 724d

Cause bisection: introduced by (bisect log) :
commit 0609ae011deb41c9629b7f5fd626dfa1ac9d16b0
Author: Daniel Axtens <dja@axtens.net>
Date: Sun Dec 1 01:55:00 2019 +0000

  x86/kasan: support KASAN_VMALLOC

Crash: KASAN: vmalloc-out-of-bounds Read in compat_copy_entries (log)
Repro: C syz .config

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-386 2019/12/14 21:25 upstream e31736d9fae8 eef6e580 .config log report syz C
ci-qemu-upstream-386 2019/12/14 21:03 upstream e31736d9fae8 eef6e580 .config log report syz C
ci-qemu-upstream-386 2019/12/14 14:41 upstream e31736d9fae8 eef6e580 .config log report