Tracker / CVE-2022-49561
CVE-2022-49561
Critical 9.8
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.
Affected products and versions
| linux | linux_kernel · 4.15 → 4.19.246 |
|---|---|
| linux | linux_kernel · 4.20 → 5.4.197 |
| linux | linux_kernel · 4.7 → 4.14.282 |
| linux | linux_kernel · 5.11 → 5.15.45 |
| linux | linux_kernel · 5.16 → 5.17.13 |
| linux | linux_kernel · 5.18 → 5.18.2 |
| linux | linux_kernel · 5.5 → 5.10.120 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.