CVE-2026-90392
CVE CVE-2026-90392EUVD EUVD-2026-82053Published 2026-09-17T16:09:25.000ZLast changed 2026-09-18T17:55:04.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpf_link_show_fdinfo and bpf_link_get_info_by_fd, link->prog is accessed without holding any locks. If the prog is concurrently replaced via bpf_link_update, the old prog can be freed, leading to a potential UAF issue. Fix this by accessing link->prog under RCU protection to safely fetch the pointer and guarantee its lifetime while reading its fields.
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: 7.2.6; 0c991ebc8c69d29b7fc44db17075c5aa5253e2ab <d7d7208e2603b45724b684f4df73904fb347741e; patch: 6.6.157; patch: 6.18.52; 0c991ebc8c69d29b7fc44db17075c5aa5253e2ab <85cf991c881e7198be32be05a9daa2625390c8b3; 0c991ebc8c69d29b7fc44db17075c5aa5253e2ab <863f3ddd0b8ac65abfb50d3be0869268ac0e277b; 5.7; patch: 6.12.110; 0c991ebc8c69d29b7fc44db17075c5aa5253e2ab <a5c936ac904767fc1d943d40b0308bcb2ae2509b; 0c991ebc8c69d29b7fc44db17075c5aa5253e2ab <79347e42cfbc9e78872922e8f08a70609c9af82f; patch: 7.3-rc1; patch: 0
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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