Answer in brief
CVE-2025-22005 records a Medium severity (CVSS 5.5) vulnerability in ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2025-22005 records a Medium severity (CVSS 5.5) vulnerability in ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7dd73168e273938b9e9bb42ca51b0c27d807992b <16267a5036173d0173377545b4b6021b081d0933 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <1bd12dfc058e1e68759d313d7727d68dbc1b8964 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <596a883c4ce2d2e9c175f25b98fed3a1f33fea38 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <77c41cdbe6bce476e08d3251c0d501feaf10a9f3 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <119dcafe36795a15ae53351cbbd6177aaf94ffef || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <29d91820184d5cbc70f3246d4911d96eaeb930d6 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <d3d5b4b5ae263c3225db363ba08b937e2e2b0380 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <9740890ee20e01f99ff1dde84c63dcf089fabb98 | 16267a5036173d0173377545b4b6021b081d0933, 1bd12dfc058e1e68759d313d7727d68dbc1b8964, 596a883c4ce2d2e9c175f25b98fed3a1f33fea38, 77c41cdbe6bce476e08d3251c0d501feaf10a9f3, 119dcafe36795a15ae53351cbbd6177aaf94ffef, 29d91820184d5cbc70f3246d4911d96eaeb930d6, d3d5b4b5ae263c3225db363ba08b937e2e2b0380, 9740890ee20e01f99ff1dde84c63dcf089fabb98 |
| Linux/Linuxgeneric | 5.3 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Apr 3, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7dd73168e273938b9e9bb42ca51b0c27d807992b <16267a5036173d0173377545b4b6021b081d0933 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <1bd12dfc058e1e68759d313d7727d68dbc1b8964 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <596a883c4ce2d2e9c175f25b98fed3a1f33fea38 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <77c41cdbe6bce476e08d3251c0d501feaf10a9f3 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <119dcafe36795a15ae53351cbbd6177aaf94ffef || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <29d91820184d5cbc70f3246d4911d96eaeb930d6 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <d3d5b4b5ae263c3225db363ba08b937e2e2b0380 || >=7dd73168e273938b9e9bb42ca51b0c27d807992b <9740890ee20e01f99ff1dde84c63dcf089fabb98 | 16267a5036173d0173377545b4b6021b081d0933, 1bd12dfc058e1e68759d313d7727d68dbc1b8964, 596a883c4ce2d2e9c175f25b98fed3a1f33fea38, 77c41cdbe6bce476e08d3251c0d501feaf10a9f3, 119dcafe36795a15ae53351cbbd6177aaf94ffef, 29d91820184d5cbc70f3246d4911d96eaeb930d6, d3d5b4b5ae263c3225db363ba08b937e2e2b0380, 9740890ee20e01f99ff1dde84c63dcf089fabb98 |
| Linux/Linuxgeneric | 5.3 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Apr 3, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.