High severity7.8NVD Advisory· Published Apr 3, 2026· Updated Oct 19, 2026
CVE-2026-31389
CVE-2026-31389
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.0,<6.1.167
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
9- git.kernel.org/stable/c/0e23f50086da7d0b183dfeac26021acfcdee086bnvdPatch
- git.kernel.org/stable/c/23b51bad2eb8787aa74324cfccefb258515ae5banvdPatch
- git.kernel.org/stable/c/6bbd385b30c7fb6c7ee0669e9ada91490938c051nvdPatch
- git.kernel.org/stable/c/80f3e8cd2b4ad355b2ad2024cf423f6d183404f7nvdPatch
- git.kernel.org/stable/c/8634e05b08ead636e926022f4a98416e13440df9nvdPatch
- git.kernel.org/stable/c/afe27c1f43aa57530011f419be6ddf71306565d2nvdPatch
- cert-portal.siemens.com/productcert/html/ssa-019113.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-082556.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-457936.htmlnvd
News mentions
1- Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFPCISA ICS Advisories