CVE-2024-27390

2024-05-0100:00:00

ubuntu.com

linux kernel

vulnerability

ipv6 multicast

synchronize_net() removal

kasan

AI Score

6.5

Confidence

High

EPSS

Percentile

10.3%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchlinux< 5.15.0-112.122UNKNOWN
ubuntu24.04noarchlinux< 6.8.0-35.35UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1063.69UNKNOWN
ubuntu24.04noarchlinux-aws< 6.8.0-1009.9UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1063.69~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1066.75UNKNOWN
ubuntu24.04noarchlinux-azure< 6.8.0-1008.8UNKNOWN
ubuntu20.04noarchlinux-azure-5.15< anyUNKNOWN
ubuntu22.04noarchlinux-azure-6.5< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	22.04	noarch	linux	< 5.15.0-112.122	UNKNOWN
ubuntu	24.04	noarch	linux	< 6.8.0-35.35	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1063.69	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< 6.8.0-1009.9	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1063.69~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1066.75	UNKNOWN
ubuntu	24.04	noarch	linux-azure	< 6.8.0-1008.8	UNKNOWN
ubuntu	20.04	noarch	linux-azure-5.15	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure-6.5	< any	UNKNOWN