{"id":"CVE-2025-22005","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().\n\nfib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything\nwhen it fails.\n\nCommit 7dd73168…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().\n\nfib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything\nwhen it fails.\n\nCommit 7dd73168…","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","cwe":["CWE-401"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.3, < 5.4.292","linux_kernel >= 5.5, < 5.10.236","linux_kernel >= 5.16, < 6.1.132","linux_kernel >= 6.2, < 6.6.85","linux_kernel >= 6.7, < 6.12.21","linux_kernel >= 6.13, < 6.13.9","linux_kernel = 6.14"],"patched":["linux_kernel 6.13.9"],"published":"2025-04-03","updated":"2026-07-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-22005","references":[{"url":"https://git.kernel.org/stable/c/119dcafe36795a15ae53351cbbd6177aaf94ffef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/16267a5036173d0173377545b4b6021b081d0933","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1bd12dfc058e1e68759d313d7727d68dbc1b8964","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/29d91820184d5cbc70f3246d4911d96eaeb930d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/596a883c4ce2d2e9c175f25b98fed3a1f33fea38","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/77c41cdbe6bce476e08d3251c0d501feaf10a9f3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9740890ee20e01f99ff1dde84c63dcf089fabb98","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d3d5b4b5ae263c3225db363ba08b937e2e2b0380","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00215,"epssPercentile":0.12112,"ingestedAt":"2026-07-14T13:36:56.165Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-10-01T17:09:45.806528Z"},"slug":"CVE-2025-22005","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().\n\nfib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything\nwhen it fails.\n\nCommit 7dd73168e273 (\"ipv6: Always allocate pcpu memory in a fib6_nh\")\nmoved fib_nh_common_init() before alloc_percpu_gfp() within fib6_nh_init()\nbut forgot to add cleanup for fib6_nh->nh_common.nhc_pcpu_rth_output in\ncase it fails to allocate fib6_nh->rt6i_pcpu, resulting in memleak.\n\nLet's call fib_nh_common_release() and clear nhc_pcpu_rth_output in the\nerror path.\n\nNote that we can remove the fib6_nh_release() call in nh_create_ipv6()\nlater in net-next.git.\n\n## Affected\n\n- `linux_kernel >= 5.3, < 5.4.292`\n- `linux_kernel >= 5.5, < 5.10.236`\n- `linux_kernel >= 5.16, < 6.1.132`\n- `linux_kernel >= 6.2, < 6.6.85`\n- `linux_kernel >= 6.7, < 6.12.21`\n- `linux_kernel >= 6.13, < 6.13.9`\n- `linux_kernel = 6.14`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.9`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}