syzbot


WARNING in cfg80211_inform_single_bss_frame_data
Status: upstream: reported C repro on 2021/02/01 09:06
Reported-by: syzbot+405843667e93b9790fc1@syzkaller.appspotmail.com
Fix commit: e298aa358f0c mac80211: fix skb length check in ieee80211_scan_rx()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32]
First crash: 178d, last: 85d

Cause bisection: introduced by (bisect log) :
commit 4abb52a46e7336c1e568a53761c8b7a81bbaaeaf
Author: Sara Sharon <sara.sharon@intel.com>
Date: Wed Jan 16 10:14:41 2019 +0000

  mac80211: pass bssids to elements parsing function

Crash: WARNING in cfg80211_inform_bss_frame_data (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2021/05/10 03:27 15m ducheng2@gmail.com patch upstream OK
2021/05/10 03:27 15m ducheng2@gmail.com patch upstream OK
2021/05/10 02:50 16m ducheng2@gmail.com patch upstream OK

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/05/04 15:50 upstream 5e321ded302d fc9fd31e .config log report syz C
ci-upstream-kasan-gce 2021/04/04 15:31 upstream 2023a53bdf41 fc9fd31e .config log report syz C
ci-upstream-kasan-gce 2021/03/05 13:06 upstream 280d542f6ffa fc9fd31e .config log report syz C
Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/01/31 23:27 upstream 6642d600b541 fc9fd31e .config log report syz C WARNING in cfg80211_inform_single_bss_frame_data