CVE-2025-22057net: decrease cached dst counters in dst_release
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 before ccc331fd5bcae131d2627d5ef099d4a1f6540aea; from d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 before 92a5c18513117be69bc00419dd1724c1940f8fcd; from d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 before 836415a8405c9665ae55352fc5ba865c242f5e4f; from d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 before e833e7ad64eb2f63867f65303be49ca30ee8819e; from d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8 before 3a0a3ff6593d670af2451ec363ccb7b18aec0c0a | CNA record |
linux linux_kernel linux:linux_kernel | from 4.6 before 6.6.87; from 6.7 before 6.12.23; from 6.13 before 6.13.11; from 6.14 before 6.14.2 | NVD |
References
- https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aeapatch
- https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcdpatch
- https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4fpatch
- https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819epatch
- https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0apatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.