CVE-2026-93134
CVE CVE-2026-93134EUVD EUVD-2026-82242Published 2026-09-17T16:11:36.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: printk: Fix possible console use-after-free When emitting a record via legacy printing, it is possible that a handover to another legacy printing context occurs. When a context has performed a handover, the console SRCU read lock is released and the pointer to the console struct might now be invalid. Therefore, after calling nbcon_legacy_emit_next_record() or console_emit_next_record(), it is necessary to check if a handover occurred _before_ further @con usage. Sashiko pointed out that console_flush_one_record() was not doing this. In console_flush_one_record(), after emitting a record, move the further usage of @con after the handover check.
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 6.12; patch: 7.3-rc1; c158834b223fbfab3a14855ac203b8d9cddbbefd <f0104a7b730de32eefb3d4a27279592b5504ad59; patch: 6.18.52; patch: 7.2.6; c158834b223fbfab3a14855ac203b8d9cddbbefd <fbf9bb81b21537ede387a31cc586f1d2ce66a74e; c158834b223fbfab3a14855ac203b8d9cddbbefd <36630cafbeede0b64c370edb2f7b4094327ee1e0; c158834b223fbfab3a14855ac203b8d9cddbbefd <8f194dee0c0d1223255bae1429e1939882f540fc; patch: 0; patch: 6.12.110
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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