Linux Kernel: Linux Kernel Missing Initialization of a Variable Vulnerability
Info Listed in CISA KEV
Summary
Linux Kernel contains a missing initialization of a variable vulnerability that could allow for unintended modification of page-cache-backed data via failure to preserve the shared-fragment marker during socket buffer coalescing, causing ESP input processing to decrypt shared fragments in place. This vulnerability can be chained with CVE-2026-109618 and CVE-2026-109619 to implant PHP webshells and run commands as root.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- Linux:Kernel
Sources
- CISA KEV DATABASE
Original Links
- https://git.kernel.org/stable/c/3599e6b3cc1ada96883d496a50a210d3afbb6987 reference
- https://git.kernel.org/stable/c/2f2b16022a2e10ca7bccfb98db5ed2ec0f72641c reference
- https://git.kernel.org/stable/c/9d3e5fd19fe1063bf607219e8562fbd567b8e8d5 reference
- https://git.kernel.org/stable/c/78bf6b6bb19541d19fbda6242e7cfe2c682763c0 reference
- https://git.kernel.org/stable/c/760e1addc27ba1a7beb4a0a7e8b3e9ec49e7a34e reference
- https://git.kernel.org/stable/c/3bd9e113d50034db99d7ef69fd8e5242d15e414a reference
- https://git.kernel.org/stable/c/3884358a9286b17f389a72b1426fc4547c23c111 reference
- https://git.kernel.org/stable/c/f84eca5817390257cef78013d0112481c503b4a3 reference
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk reference
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk reference
- https://nvd.nist.gov/vuln/detail/CVE-2026-46300 reference
Timeline
- kev_ingest CISA KEV