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🛡️ CVE-2025-22057 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

net: decrease cached dst counters in dst_release

In the Linux kernel, the following vulnerability has been resolved:

net: decrease cached dst counters in dst_release

Upstream fix ac888d58869b ("net: do not delay dst_entries_add() in

dst_release()") moved decrementing the dst count from dst_destroy to

dst_release to avoid accessing already freed data in case of netns

dismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels

are used, this fix is incomplete as the same issue will be seen for

cached dsts:

Unable to handle kernel paging request at virtual address ffff5aabf6b5c000

Call trace:

percpu_counter_add_batch+0x3c/0x160 (P)

dst_release+0xec/0x108

dst_cache_destroy+0x68/0xd8

dst_destroy+0x13c/0x168

dst_destroy_rcu+0x1c/0xb0

rcu_do_batch+0x18c/0x7d0

rcu_core+0x174/0x378

rcu_core_si+0x18/0x30

Fix this by invalidating the cache, and thus decrementing cached dst

counters, in dst_release too.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2025-22057 is recorded against 2 packages.

  • kernel (from 6.14.0 up to 6.14.2)
  • linux-kernel (from 6.14 up to 6.14.2)

Timeline and source

Published on 16 April 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-22057 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-04-16
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.14.0 6.14.2
linux-kernel 6.14 6.14.2

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.