CVE-2026-80993
CVE CVE-2026-80993EUVD EUVD-2026-76316Published 2026-09-11T19:42:49.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: net: phylink: correctly validate returned PCS in phylink_inband_caps In phylink_inband_caps(), the PCS returned by mac_select_pcs is only checked if NULL but mac_select_pcs can also return an error pointer. This can cause a kernel panic as phylink_pcs_inband_caps() only checks if passed PCS is not NULL and directly dereference ops from the phylink_pcs struct. Use the IS_ERR_OR_NULL macro to address both case where the returned PCS can be NULL or an error pointer and prevent a kernel panic.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2.4; df874f9e52c340cc6f0a0014a97b778f67d46849 <fb4d77553841ae85bed9b2cf03351c401e871d85; df874f9e52c340cc6f0a0014a97b778f67d46849 <b6b533f83461c3730875cf3ed5ff6362dcb67be9; patch: 0; 6.14; patch: 7.3-rc1; df874f9e52c340cc6f0a0014a97b778f67d46849 <f2849b1fd059ec9b3281b771e6ac5aad9feee851; patch: 6.18.50
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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