Executive Summary

Informations
Name CVE-2025-22057 First vendor Publication 2025-04-16
Vendor Cve Last vendor Modification 2025-04-17

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-22057

Sources (Detail)

https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a
https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f
https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd
https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea
https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e
Source Url

Alert History

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0
Date Informations
2025-05-27 02:55:08
  • First insertion