CVE-2026-31389
Status: ModifiedHigh (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
spi: fix use-after-free on controller registration failure
Make sure to deregister from driver core also in the unlikely event that per-cpu statistics allocation fails during controller registration to avoid use-after-free (of driver resources) and unclocked register accesses.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Base score: 7.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.17%
- Percentile among all scored CVEs: 6
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Primary impact
T1059Command and Scripting Interpreterexecution75 %
Acceso local (AV:L) sin UI requerida con privilegios (PR:L) permite escalada en kernel Linux; uso-después-liberación en manejo de recursos puede llevar a ejecución de código.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-416
References
- https://git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086b
- https://git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5ba
- https://git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051
- https://git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7
- https://git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9
- https://git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Raw JSON (NVD)
Show
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