CVE-2025-39964
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Beskrivelse
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Issuing two writes to the same af_alg socket is bogus as the data will be interleaved in an unpredictable fashion. Furthermore, concurrent writes may create inconsistencies in the internal socket state. Disallow this by adding a new ctx->write field that indiciates exclusive ownership for writing.
Beskrivelsen gjengis slik kilden har publisert den, på engelsk.
Nøkkelfakta
- Publisert
- 2025-10-13
- Sist endret
- 2026-09-19
- Tildelt av
- Linux
- CVSS-vektor
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Scoret av
- CVE Program
- Sannsynlighet for utnyttelse
-
0.3 %
høyere enn 17 %
av alle kjente sårbarheter
EPSS, neste 30 dager, modell v2026.06.15 - Rettelse finnes
- Ikke registrert hos kildene
Aktivt utnyttet
CISA førte denne sårbarheten inn i katalogen over kjente utnyttede sårbarheter 2026-09-18, med utbedringsfrist 2026-09-21 for amerikanske føderale etater.
Pålagt tiltak: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Berørte produkter
| Leverandør | Produkt | Versjoner | Status |
|---|---|---|---|
| Linux | Linux | 2.6.38 | Berørt |
| Linux | Linux | ≥ 0, < 2.6.38 | Ikke berørt |
| Linux | Linux | ≥ 5.10.245, ≤ 5.10.* | Ikke berørt |
| Linux | Linux | ≥ 5.15.194, ≤ 5.15.* | Ikke berørt |
| Linux | Linux | ≥ 6.1.154, ≤ 6.1.* | Ikke berørt |
| Linux | Linux | ≥ 6.12.49, ≤ 6.12.* | Ikke berørt |
| Linux | Linux | ≥ 6.16.9, ≤ 6.16.* | Ikke berørt |
| Linux | Linux | ≥ 6.17, ≤ * | Ikke berørt |
| Linux | Linux | ≥ 6.6.108, ≤ 6.6.* | Ikke berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 0f28c4adbc4a97437874c9b669fd7958a8c6d6ce | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < e4c1ec11132ec466f7362a95f36a506ce4dc08c9 | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8 | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 7c4491b5644e3a3708f3dbd7591be0a570135b84 | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 9aee87da5572b3a14075f501752e209801160d3d | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 45bcf60fe49b37daab1acee57b27211ad1574042 | Berørt |
| Linux | Linux | ≥ 8ff590903d5fc7f5a0a988c38267a3d08e6393a2, < 1b34cbbf4f011a121ef7b2d7d6e6920a036d5285 | Berørt |
Svakhetstype
-
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating …
Referanser
- https://git.kernel.org/stable/c/0f28c4adbc4a97437874c9b669fd7958a8c6d6ce
- https://git.kernel.org/stable/c/e4c1ec11132ec466f7362a95f36a506ce4dc08c9
- https://git.kernel.org/stable/c/1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8
- https://git.kernel.org/stable/c/7c4491b5644e3a3708f3dbd7591be0a570135b84
- https://git.kernel.org/stable/c/9aee87da5572b3a14075f501752e209801160d3d
- https://git.kernel.org/stable/c/45bcf60fe49b37daab1acee57b27211ad1574042
- https://git.kernel.org/stable/c/1b34cbbf4f011a121ef7b2d7d6e6920a036d5285
Berører dette dere?
En sårbarhet betyr bare noe hvis dere kjører produktet, i en berørt versjon, et sted en angriper kommer til.