PT-2025-8038 · Linux+3 · Linux Kernel+3
Karel Rericha
·
Published
2022-01-01
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Updated
2026-03-14
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CVE-2022-49110
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability in the Linux kernel's netfilter conntrack module has been resolved. The issue caused netlink event overflows when events were collected due to the conntrack hash table distribution. This occurred when the hash table was set to a large value, resulting in most evictions happening from the gc worker rather than the packet path. The problem was addressed by changing the conntrack gc to run every 2 minutes and collecting the average expiry of scanned entries to reschedule the gc worker. To prevent event overflows, the gc worker now reschedules after each bucket and has limits for both run time and number of evictions per run.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Resource Release
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linux Kernel
Suse