syzbot


BUG: stack guard page was hit in deref_stack_reg
Status: upstream: reported on 2020/03/14 10:28
Reported-by: syzbot+2a3c14db0e17fe4c7409@syzkaller.appspotmail.com
Fix commit: dd912306 net: fix a potential recursive NETDEV_FEAT_CHANGE
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 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-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-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 116d, last: 51d
duplicates (2):
Title Repro Bisected Count Last Reported Patched Status
BUG: stack guard page was hit in unwind_next_frame 6 18h39m 62d 15/17 closed as dup on 2020/05/04 19:04
BUG: stack guard page was hit in match_held_lock 1 106d 102d 0/17 closed as dup on 2020/03/24 16:36

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-net-kasan-gce 2020/05/14 00:23 net-next 6cb75767 a885920d .config log report bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, shile.zhang@linux.alibaba.com, tglx@linutronix.de, x86@kernel.org
ci-upstream-net-kasan-gce 2020/03/10 08:08 net-next 34a568a2 35f53e45 .config log report bp@alien8.de, hpa@zytor.com, jpoimboe@redhat.com, linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, shile.zhang@linux.alibaba.com, tglx@linutronix.de, x86@kernel.org