CVE-2026-80756selinux: do not cancel a policy conversion that never started
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 8 days later
· 8 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < 2d29983104f06f5b0babcd5a25a0f0408272cd27
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < a4f182f8715cb0819445f0850cd5436828f4bafc
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < 1059789ae9f99cbbe3a78e361e9c0976beb5958b
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < 1acc317d67a755a45e32419a15d70e403fa43f0e
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < a42932c6aa33d0aac683cacdf1ec7009b955ba5d
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < 1b4ff94ae7c580c880291519fb0e3e2bd075beef
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < 219c96de5d9b6b4af7e8576ad897b774cc3ee9a7
- affected 02a52c5c8c3b8cbad0f12009cde9f36dbefb6972 – < e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e
- affected 5.10
- unaffected < 5.10
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.184 – ≤ 6.1.*
- unaffected 6.6.153 – ≤ 6.6.*
- unaffected 6.12.105 – ≤ 6.12.*
- unaffected 6.18.46 – ≤ 6.18.*
- unaffected 7.1.10 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/2d29983104f06f5b0babcd5a25a0f0408272cd27 (opens in a new tab)
- https://git.kernel.org/stable/c/a4f182f8715cb0819445f0850cd5436828f4bafc (opens in a new tab)
- https://git.kernel.org/stable/c/1059789ae9f99cbbe3a78e361e9c0976beb5958b (opens in a new tab)
- https://git.kernel.org/stable/c/1acc317d67a755a45e32419a15d70e403fa43f0e (opens in a new tab)
- https://git.kernel.org/stable/c/a42932c6aa33d0aac683cacdf1ec7009b955ba5d (opens in a new tab)
- https://git.kernel.org/stable/c/1b4ff94ae7c580c880291519fb0e3e2bd075beef (opens in a new tab)
- https://git.kernel.org/stable/c/219c96de5d9b6b4af7e8576ad897b774cc3ee9a7 (opens in a new tab)
- https://git.kernel.org/stable/c/e5c0235a3c4e9eb047a16cd02323fe4ecf2f570e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-70360 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-80756)Record last updated .