Medium severity5.5NVD Advisory· Published May 1, 2024· Updated Jul 24, 2026
CVE-2024-27390
CVE-2024-27390
Description
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()
As discussed in the past (commit 2d3916f31891 ("ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()")) I think the synchronize_net() call in ipv6_mc_down() is not needed.
Under load, synchronize_net() can last between 200 usec and 5 ms.
KASAN seems to agree as well.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8cnvdPatch
- git.kernel.org/stable/c/26d4bac55750d535f1f0b8790dc26daf6089e373nvdPatch
- git.kernel.org/stable/c/5da9a218340a2bc804dc4327e5804392e24a0b88nvdPatch
- git.kernel.org/stable/c/7eb06ee5921189812e6b4bfe7b0f1e878be16df7nvdPatch
- git.kernel.org/stable/c/9d159d6637ccce25f879d662a480541ef4ba3a50nvdPatch
- git.kernel.org/stable/c/a03ede2282ebbd181bd6f5c38cbfcb5765afcd04nvdPatch
- git.kernel.org/stable/c/bfd2f3c58ad86ad33db80515e6c3503e0414e44bnvd
News mentions
0No linked articles in our index yet.