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Medium 5.5Published Apr 24, 2026
CVE-2026-31634rxrpc: fix reference count leak in rxrpc_server_keyring()
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: rxrpc: fix reference count leak in rxrpc_server_keyring() This patch fixes a reference count leak in rxrpc_server_keyring() by checking if rx->securities is already set.
- 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) | 17926a79320afa9b95df6b977b40cca6d8713cea builds before 45d9584e51bdd61faf1900f82666d4ea6a85da72; from 17926a79320afa9b95df6b977b40cca6d8713cea before fc76d0bd00850b7372f0a4a319c0c60f80487632; from 17926a79320afa9b95df6b977b40cca6d8713cea before c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2; 17926a79320afa9b95df6b977b40cca6d8713cea builds before 9ce36d28f67c2a477a7e2f03480de3f6783fb363; 17926a79320afa9b95df6b977b40cca6d8713cea builds before 12de9e0e0b0b7058be7dfb8a5927eb565bc25780; 17926a79320afa9b95df6b977b40cca6d8713cea builds before 8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a; 17926a79320afa9b95df6b977b40cca6d8713cea builds before 139c750bf06649097d98b0bc41e2a678b4627e27; from 17926a79320afa9b95df6b977b40cca6d8713cea before f125846ee79fcae537a964ce66494e96fa54a6de | 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 2.6.22.1 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; 2.6.22; 7.0; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/45d9584e51bdd61faf1900f82666d4ea6a85da72
- https://git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632patch
- https://git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2patch
- https://git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363patch
- https://git.kernel.org/stable/c/12de9e0e0b0b7058be7dfb8a5927eb565bc25780patch
- https://git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7apatch
- https://git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27patch
- https://git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6depatch
- 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.