CVE-2026-90056 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-LINUX612-20507249
- published5 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
NewCVE-2026-90056 (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:
net: fec: only stop PTP if it was initialized
fec_ptp_init() is only called when fep->bufdesc_ex is available. However, fec_probe() unconditionally calls fec_ptp_stop() on the failed_init path, and fec_drv_remove() unconditionally calls fec_ptp_stop() during device removal.
Check fep->bufdesc_ex before calling fec_ptp_stop() in both paths to avoid stopping PTP when it was not initialized.
References
- https://security-tracker.debian.org/tracker/CVE-2026-90056
- https://git.kernel.org/stable/c/0602a4c238d2b6ed6e2bf5fa8ef7fa0203883dac
- https://git.kernel.org/stable/c/0dc8b3a395c3a749ab62c078f2fd54a402ae7e2b
- https://git.kernel.org/stable/c/1973f108c481fab9bdc7daa6c77442af4a7388ab
- https://git.kernel.org/stable/c/1f9639caeece703012bdb23975ebedf70f426269
- https://git.kernel.org/stable/c/383f699a86fd04458dc47d10578c17e94f63d92f
- https://git.kernel.org/stable/c/5975009651c4e5ec1492612962d0dd3dc86f6bda
- https://git.kernel.org/stable/c/7566789664813c1778f0d4b7e0539fd863ea450c
- https://git.kernel.org/stable/c/dd890ae29299636fb037276fc1b5238698d08b03