rxrpc: fix reference count leak in rxrpc_server_keyring()

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Summary

CVECVE-2026-31634
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:42 UTC
Updated2026-07-14 13:18:46 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.067850000 (date 2026-04-27)

Problem Types: NVD-CWE-Other

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea 45d9584e51bdd61faf1900f82666d4ea6a85da72 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea fc76d0bd00850b7372f0a4a319c0c60f80487632 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea 9ce36d28f67c2a477a7e2f03480de3f6783fb363 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea 12de9e0e0b0b7058be7dfb8a5927eb565bc25780 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea 8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea 139c750bf06649097d98b0bc41e2a678b4627e27 git Not specified
CNA Linux Linux affected 17926a79320afa9b95df6b977b40cca6d8713cea f125846ee79fcae537a964ce66494e96fa54a6de git Not specified
CNA Linux Linux affected 2.6.22 Not specified
CNA Linux Linux unaffected 2.6.22 semver Not specified
CNA Linux Linux unaffected 5.10.258 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.169 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.135 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.82 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.23 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.13 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6de 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/45d9584e51bdd61faf1900f82666d4ea6a85da72 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/12de9e0e0b0b7058be7dfb8a5927eb565bc25780 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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