Description
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8 ↗
- https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531 ↗
- https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046 ↗
- https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b ↗
- https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/ ↗
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html ↗
- https://www.debian.org/security/2020/dsa-4698 ↗
- https://www.debian.org/security/2020/dsa-4699 ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html ↗
- https://usn.ubuntu.com/4414-1/ ↗
- https://usn.ubuntu.com/4425-1/ ↗
- https://usn.ubuntu.com/4439-1/ ↗
- https://usn.ubuntu.com/4440-1/ ↗
- https://security.netapp.com/advisory/ntap-20210129-0004/ ↗