CVE-2026-90225nfc: llcp: read llcp_sock->local under the socket lock in getsockopt
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: nfc: llcp: read llcp_sock->local under the socket lock in getsockopt nfc_llcp_getsockopt() read llcp_sock->local before lock_sock(sk) and then dereferenced the cached pointer inside the locked region. llcp_sock_bind() assigns and clears llcp_sock->local under the same socket lock, dropping the last reference on its error path. A getsockopt() racing an in-flight bind() can observe the pointer, block on lock_sock(), and then dereference a freed nfc_llcp_local once bind() has unwound. Move the llcp_sock->local read and the NULL check inside the lock_sock(sk) region so bind() cannot mutate or free the pointer between the load and the use.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 32 days later
· 32 days 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < 56fd158fef20268f48db6cdfe5d722e930134eda
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < 8ba8cec0586727cc135ca4827921fc7b52946d71
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < ed5240bab3468988077fe8bf29b935eaecc9ff89
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < fe65727a4a21b11c18eebae1338482767a897b76
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < 2d8ac24565be85bf56580b87bf1b874d35625eb5
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < 156e65bd29307f5053835bff60bc1ba342fa010f
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < d1b73962675cdc5a58e2707e25b548d8b495fde0
- affected 26fd76cab2e61cedc5c25f7151fb31b57ddc53c7 – < 36812527052c5bfb1ec6c1e292d67a5bf76b750f
- affected 3.10
- unaffected < 3.10
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/56fd158fef20268f48db6cdfe5d722e930134eda (opens in a new tab)
- https://git.kernel.org/stable/c/8ba8cec0586727cc135ca4827921fc7b52946d71 (opens in a new tab)
- https://git.kernel.org/stable/c/ed5240bab3468988077fe8bf29b935eaecc9ff89 (opens in a new tab)
- https://git.kernel.org/stable/c/fe65727a4a21b11c18eebae1338482767a897b76 (opens in a new tab)
- https://git.kernel.org/stable/c/2d8ac24565be85bf56580b87bf1b874d35625eb5 (opens in a new tab)
- https://git.kernel.org/stable/c/156e65bd29307f5053835bff60bc1ba342fa010f (opens in a new tab)
- https://git.kernel.org/stable/c/d1b73962675cdc5a58e2707e25b548d8b495fde0 (opens in a new tab)
- https://git.kernel.org/stable/c/36812527052c5bfb1ec6c1e292d67a5bf76b750f (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-2026-81818 (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-2026-90225)Record last updated .