CVE-2026-31651mmc: vub300: fix NULL-deref on disconnect
Updated under an hour ago ()
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It affects Linux and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: fix NULL-deref on disconnect Make sure to deregister the controller before dropping the reference to the driver data on disconnect to avoid NULL-pointer dereferences or use-after-free.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before 6446516e626ce7c44bdadbcbb3d7677a2c52ce93; from 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before ba3b9429de94958dc0060d9816a915dd75c34919; 88095e7b473a3d9ec3b9c60429576e9cbd327c89 builds before 517b58e1d067115f80d198feee10192da4c424d0; 88095e7b473a3d9ec3b9c60429576e9cbd327c89 builds before 6468cab1173f44f7a4b7a05ce8abfdfd1ce1557a; 88095e7b473a3d9ec3b9c60429576e9cbd327c89 builds before 53f2642d77ab5f1f303388bff5500363c6cf962c; from 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before c83a282615d8f7ba28cebddd54600b419d562d82; 88095e7b473a3d9ec3b9c60429576e9cbd327c89 builds before 8d09e75759cb2afc0732acfb5a14a93c03805a61; from 88095e7b473a3d9ec3b9c60429576e9cbd327c89 before dff34ef879c5e73298443956a8b391311ba78d57 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.0.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.169; from 6.2 before 6.6.135; from 6.7 before 6.12.82; from 6.13 before 6.18.23; from 6.19 before 6.19.13; 3.0; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/6446516e626ce7c44bdadbcbb3d7677a2c52ce93patch
- https://git.kernel.org/stable/c/ba3b9429de94958dc0060d9816a915dd75c34919patch
- https://git.kernel.org/stable/c/517b58e1d067115f80d198feee10192da4c424d0patch
- https://git.kernel.org/stable/c/6468cab1173f44f7a4b7a05ce8abfdfd1ce1557apatch
- https://git.kernel.org/stable/c/53f2642d77ab5f1f303388bff5500363c6cf962cpatch
- https://git.kernel.org/stable/c/c83a282615d8f7ba28cebddd54600b419d562d82patch
- https://git.kernel.org/stable/c/8d09e75759cb2afc0732acfb5a14a93c03805a61patch
- https://git.kernel.org/stable/c/dff34ef879c5e73298443956a8b391311ba78d57patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.