{"id":"CVE-2026-31634","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: fix reference count leak in rxrpc_server_keyring()\n\nThis patch fixes a reference count leak in rxrpc_server_keyring()\nby checking if rx->securities is already set.","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: fix reference count leak in rxrpc_server_keyring()\n\nThis patch fixes a reference count leak in rxrpc_server_keyring()\nby checking if rx->securities is already set.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 2.6.22.1, < 5.15.203","linux_kernel >= 5.16, < 6.1.169","linux_kernel >= 6.2, < 6.6.135","linux_kernel >= 6.7, < 6.12.82","linux_kernel >= 6.13, < 6.18.23","linux_kernel >= 6.19, < 6.19.13","linux_kernel = 2.6.22","linux_kernel = 7.0"],"patched":["linux_kernel 6.19.13"],"published":"2026-04-24","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:19:14.267","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-31634","references":[{"url":"https://git.kernel.org/stable/c/12de9e0e0b0b7058be7dfb8a5927eb565bc25780","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/45d9584e51bdd61faf1900f82666d4ea6a85da72","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6de","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00129,"epssPercentile":0.02501,"ingestedAt":"2026-09-08T15:33:26.990Z","slug":"CVE-2026-31634","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: fix reference count leak in rxrpc_server_keyring()\n\nThis patch fixes a reference count leak in rxrpc_server_keyring()\nby checking if rx->securities is already set.\n\n## Affected\n\n- `linux_kernel >= 2.6.22.1, < 5.15.203`\n- `linux_kernel >= 5.16, < 6.1.169`\n- `linux_kernel >= 6.2, < 6.6.135`\n- `linux_kernel >= 6.7, < 6.12.82`\n- `linux_kernel >= 6.13, < 6.18.23`\n- `linux_kernel >= 6.19, < 6.19.13`\n- `linux_kernel = 2.6.22`\n- `linux_kernel = 7.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.19.13`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":221735,"id":"CVE-2026-31634","ts":1792035345248,"field":"cvss","old":null,"new":"5.5"},{"seq":221734,"id":"CVE-2026-31634","ts":1792035345248,"field":"severity","old":"none","new":"medium"}]}