syzbot


KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3
Status: fixed on 2021/04/09 19:46
Reported-by: syzbot+d29e58bb557324e55e5e@syzkaller.appspotmail.com
Fix commit: befe6d946551 tracepoint: Do not fail unregistering a probe due to memory failure
First crash: 400d, last: 295d

Cause bisection: introduced by (bisect log) :
commit 9df1c28bb75217b244257152ab7d788bb2a386d0
Author: Matt Mullins <mmullins@fb.com>
Date: Fri Apr 26 18:49:47 2019 +0000

  bpf: add writable context for raw tracepoints

Crash: BUG: unable to handle kernel paging request in __bpf_trace_sched_switch (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel paging request in bpf_trace_run3 C done 40 286d 408d 22/22 fixed on 2021/04/09 19:46

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-kasan-gce 2021/01/17 01:04 bpf e23a8d002198 a6e3ac3b .config log report syz C
ci-upstream-bpf-kasan-gce 2020/12/17 21:04 bpf 1a3449c19407 a6e3ac3b .config log report syz C
Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-kasan-gce 2020/10/30 17:26 bpf 080b6f407635 a6e3ac3b .config log report syz C
ci-upstream-kasan-gce-root 2021/01/26 02:51 upstream f8ad8187c3b5 52e37319 .config log report info KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3
ci-upstream-bpf-next-kasan-gce 2021/02/12 14:16 bpf-next b2e37a7114ef a5f86b15 .config log report info KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3
ci-upstream-bpf-next-kasan-gce 2021/02/09 14:00 bpf-next ee5cc0363ea0 2bd9619f .config log report info KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3
ci-upstream-bpf-kasan-gce 2020/10/30 17:09 bpf 080b6f407635 a6e3ac3b .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/13 02:38 bpf-next c36538798fc6 16fca0c8 .config log report info