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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc7:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/119dcafe36795a15ae53351cbbd6177aaf94ffef cve-icon cve-icon
https://git.kernel.org/stable/c/16267a5036173d0173377545b4b6021b081d0933 cve-icon cve-icon
https://git.kernel.org/stable/c/1bd12dfc058e1e68759d313d7727d68dbc1b8964 cve-icon cve-icon
https://git.kernel.org/stable/c/29d91820184d5cbc70f3246d4911d96eaeb930d6 cve-icon cve-icon
https://git.kernel.org/stable/c/596a883c4ce2d2e9c175f25b98fed3a1f33fea38 cve-icon cve-icon
https://git.kernel.org/stable/c/77c41cdbe6bce476e08d3251c0d501feaf10a9f3 cve-icon cve-icon
https://git.kernel.org/stable/c/9740890ee20e01f99ff1dde84c63dcf089fabb98 cve-icon cve-icon
https://git.kernel.org/stable/c/d3d5b4b5ae263c3225db363ba08b937e2e2b0380 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025040349-CVE-2025-22005-3e0f@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-22005 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-22005 cve-icon
History

Wed, 01 Oct 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 10 Apr 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc7:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Thu, 10 Apr 2025 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L'}

threat_severity

Moderate

Thu, 10 Apr 2025 13:15:00 +0000

Type Values Removed Values Added
References

Fri, 04 Apr 2025 02:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Thu, 03 Apr 2025 07:30:00 +0000

Type Values Removed Values Added
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.
Title ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-04-03T07:19:06.716Z

Updated: 2025-10-01T17:09:48.269Z

Reserved: 2024-12-29T08:45:45.803Z

Link: CVE-2025-22005

cve-icon Vulnrichment

Updated: 2025-10-01T14:39:36.403Z

cve-icon NVD

Status : Modified

Published: 2025-04-03T08:15:16.087

Modified: 2025-10-01T17:15:41.333

Link: CVE-2025-22005

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-04-03T00:00:00Z

Links: CVE-2025-22005 - Bugzilla