CVE-2025-22057net: decrease cached dst counters in dst_release
- 7.8HighCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 4 months later
· 4 months later
Published
- 19 months later
· 19 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < 973bb0bc6240b55e313248ef3c6aa551ab7bb735
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < ccc331fd5bcae131d2627d5ef099d4a1f6540aea
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < 92a5c18513117be69bc00419dd1724c1940f8fcd
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < 836415a8405c9665ae55352fc5ba865c242f5e4f
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < e833e7ad64eb2f63867f65303be49ca30ee8819e
- affected d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 – < 3a0a3ff6593d670af2451ec363ccb7b18aec0c0a
- affected 4.6
- unaffected < 4.6
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.87 – ≤ 6.6.*
- unaffected 6.12.23 – ≤ 6.12.*
- unaffected 6.13.11 – ≤ 6.13.*
- unaffected 6.14.2 – ≤ 6.14.*
- unaffected 6.15 – ≤ *
References
References6
- https://git.kernel.org/stable/c/973bb0bc6240b55e313248ef3c6aa551ab7bb735 (opens in a new tab)
- https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea (opens in a new tab)
- https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd (opens in a new tab)
- https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f (opens in a new tab)
- https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e (opens in a new tab)
- https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-11238 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-22057)Record last updated .