CVE-2025-22005: linux
Vulnerability summary
CVE-2025-22005 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 55 · Related 50Timeline
- 03-04-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw(). fib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything when it fails. Commit 7dd73168e273 ("ipv6: Always allocate pcpu memory in a fib6_nh") moved fib_nh_common_init() before alloc_percpu_gfp() within fib6_nh_init() but forgot to add cleanup for fib6_nh->nh_common.nhc_pcpu_rth_output in case it fails to allocate fib6_nh->rt6i_pcpu, resulting in memleak. Let's call fib_nh_common_release() and clear nhc_pcpu_rth_output in the error path. Note that we can remove the fib6_nh_release() call in nh_create_ipv6() later in net-next.git.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
0.00 pp
From 0.21% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu133 products
- linux< 5.4.0-218.238 | < 5.15.0-142.152 | < 6.8.0-84.84
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.4.0-1147.157 | < 5.15.0-1086.93 | < 6.8.0-1039.41
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 16267a5036173d0173377545b4b6021b081d0933 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 1bd12dfc058e1e68759d313d7727d68dbc1b8964 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 596a883c4ce2d2e9c175f25b98fed3a1f33fea38 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 77c41cdbe6bce476e08d3251c0d501feaf10a9f3 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 119dcafe36795a15ae53351cbbd6177aaf94ffef | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 29d91820184d5cbc70f3246d4911d96eaeb930d6 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < d3d5b4b5ae263c3225db363ba08b937e2e2b0380 | ≥ 7dd73168e273938b9e9bb42ca51b0c27d807992b, < 9740890ee20e01f99ff1dde84c63dcf089fabb98 | 5.3
- linux_kernel≥ 5.3, < 5.4.292 | ≥ 5.5, < 5.10.236 | ≥ 5.16, < 6.1.132 | ≥ 6.2, < 6.6.85 | ≥ 6.7, < 6.12.21 | ≥ 6.13, < 6.13.9 | 6.14:rc1 | 6.14:rc2 | 6.14:rc3 | 6.14:rc4 | 6.14:rc5 | 6.14:rc6 | 6.14:rc7
Debian1 product
- linux< 6.1.133-1 | < 6.12.21-1
3 vendors · 136 products