CVE-2022-49561
netfilter: conntrack: re-fetch conntrack after insertion
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
71d8c47fc653711c41bc3282e5b0e605b3727956 < e97222b785e70e8973281666d709baad6523d8af 71d8c47fc653711c41bc3282e5b0e605b3727956 < 92a999d1963eed0df666284e20055136ceabd12f 71d8c47fc653711c41bc3282e5b0e605b3727956 < b16bb373988da3ceb0308381634117e18b6ec60d 71d8c47fc653711c41bc3282e5b0e605b3727956 < 91a36ec160ec1a0c8f5352b772dffcbb0b6023e3 71d8c47fc653711c41bc3282e5b0e605b3727956 < 01989d7eebb61c99bd4b88ebc8e261bd2f02caed 71d8c47fc653711c41bc3282e5b0e605b3727956 < 04f9e9104c969d8ce10a4a43634f641ed082092d 71d8c47fc653711c41bc3282e5b0e605b3727956 < 04e4a11dc723c52db7a36dc58f0d69ce6426f8f0 71d8c47fc653711c41bc3282e5b0e605b3727956 < 56b14ecec97f39118bf85c9ac2438c5a949509ed
Linux / Linux
4.7
References
git.kernel.org: https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af git.kernel.org: https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f git.kernel.org: https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d git.kernel.org: https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3 git.kernel.org: https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed git.kernel.org: https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d git.kernel.org: https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0 git.kernel.org: https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed