CVE-2026-23019net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
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: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure devlink_alloc() may return NULL on allocation failure, but prestera_devlink_alloc() unconditionally calls devlink_priv() on the returned pointer. This leads to a NULL pointer dereference if devlink allocation fails. Add a check for a NULL devlink pointer and return NULL early to avoid the crash.
- 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) | 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 builds before 8a4333b2818f0d853b43e139936c20659366e4a0; from 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 before 325aea74be7e192b5c947c782da23b0d19a5fda2; from 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 before 94e070cd50790317fba7787ae6006934b7edcb6f; from 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 before 3950054c9512add0cc79ab7e72b6d2f9f675e25b; from 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 before 326a4b7e61d01db3507f71c8bb5e85362f607064; from 34dd1710f5a3c9a7dc78e1ff6de69a19d407db25 before a428e0da1248c353557970848994f35fd3f005e2 | 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 5.10.1 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6; 5.10; 6.19; 6.19; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e4a0patch
- https://git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2patch
- https://git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edcb6fpatch
- https://git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25bpatch
- https://git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064patch
- https://git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f005e2patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.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.