CVE-2026-80756
CVE CVE-2026-80756EUVD EUVD-2026-70360Published 2026-09-03T08:26:34.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: selinux: do not cancel a policy conversion that never started sel_write_load() calls selinux_policy_cancel() when sel_make_policy_nodes() fails, and that helper dereferences the outgoing policy to cancel its sidtab conversion. On the first policy load there is no outgoing policy: security_load_policy() returns early for that case, before it converts anything, and state->policy is still NULL. A first load that fails while building the selinuxfs tree therefore takes a NULL dereference in selinux_policy_cancel(), reached from a write(2) to /sys/fs/selinux/load. Skip the cancel when there is no old policy, mirroring the check security_load_policy() already makes before it converts.
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: 6.18.46; patch: 6.6.153; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <a4f182f8715cb0819445f0850cd5436828f4bafc; patch: 5.10.266; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <2d29983104f06f5b0babcd5a25a0f0408272cd27; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <a42932c6aa33d0aac683cacdf1ec7009b955ba5d; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <1b4ff94ae7c580c880291519fb0e3e2bd075beef; patch: 7.1.10; patch: 0; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <1059789ae9f99cbbe3a78e361e9c0976beb5958b; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <219c96de5d9b6b4af7e8576ad897b774cc3ee9a7; patch: 6.1.184; patch: 6.12.105; 5.10; patch: 7.2; patch: 5.15.217; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <1acc317d67a755a45e32419a15d70e403fa43f0e; 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 <e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e
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
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.