CVE-2026-90210
CVE CVE-2026-90210EUVD EUVD-2026-81803Published 2026-09-17T16:07:24.000ZLast changed 2026-09-18T17:53:47.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure When bpf_trampoline_update() fails before modify_fentry_multi()/ unregister_fentry_multi() is called, cur_image is unchanged (cur_image == old_image) and ftrace still calls into it. Freeing old_image in that case causes a UAF. Only free old_image when it differs from cur_image.
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: 7.3-rc1; 7.2; patch: 7.2.6; aef4dfa790b22d8052cfb78044eadbe03c876c39 <0253073fb7d79a2dd2eae9581ea16db2aef395a6; patch: 0; aef4dfa790b22d8052cfb78044eadbe03c876c39 <65c3939656fd7848e9274faa07c26748b5bf049c
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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