CVE-2026-98078 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20507085
- published5 Oct 2026
- disclosed25 Sept 2026
Introduced: 25 Sep 2026
NewCVE-2026-98078 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
ipvs: fix reversed sequence option serialization
hton_seq() expects the host-order source first and the unaligned network-order destination second. The version 1 sync sender passes these arguments in reverse for both sequence blocks. This leaves 24 bytes of the kmalloc-backed message unwritten. It may disclose stale heap data and replace the live connection sequence state with values read from the buffer.
Pass the connection sequence state as the source and the message payload as the destination for both blocks.
References
- https://security-tracker.debian.org/tracker/CVE-2026-98078
- https://git.kernel.org/stable/c/524599714558da83747c04952d378155c69f5b6b
- https://git.kernel.org/stable/c/b04578b74f2d3755548fe9e829e3b2a6c6f966a1
- https://git.kernel.org/stable/c/de6cc6ec7932bc530f2bb92005dac9123d50659c
- https://git.kernel.org/stable/c/e1c9f9446d3eaae323f1689f9e5de3b1ad6e47ec
- https://git.kernel.org/stable/c/677ff8ab30a663cde984d8afe86465fd0d81aeef
- https://git.kernel.org/stable/c/ae38b2ae16f709c0193e1b4340bde26ef3e2687d
- https://git.kernel.org/stable/c/bbc68ba258a4eb0a2ca3b3a105550801aa8b00b0
- https://git.kernel.org/stable/c/f487b5788f15c6c32a219ed1480d25c93fc18d30