CVE - CVE-2022-49561

CVE-ID
CVE-2022-49561	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed URL:https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed MISC:https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0 URL:https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0 MISC:https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d URL:https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d MISC:https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed URL:https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed MISC:https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3 URL:https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3 MISC:https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f URL:https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f MISC:https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d URL:https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d MISC:https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af URL:https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)