syzbot


KMSAN: uninit-value in INET_ECN_decapsulate (2)
Status: upstream: reported on 2021/03/30 13:26
Reported-by: syzbot+5e9c61d74e52a82b8ace@syzkaller.appspotmail.com
Fix commit: 6628ddfec758 net: geneve: check skb is large enough for IPv4/IPv6 header
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: 128d, last: 58d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in INET_ECN_decapsulate 3 215d 248d 21/22 fixed on 2021/03/10 01:48

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kmsan-gce-386 2021/06/08 16:25 https://github.com/google/kmsan.git master 6099c9da2f7d b718257f .config log report info KMSAN: uninit-value in INET_ECN_decapsulate
ci-upstream-kmsan-gce-386 2021/03/29 21:35 https://github.com/google/kmsan.git master 29ad81a1074a 6a81331a .config log report info KMSAN: uninit-value in INET_ECN_decapsulate