CVE-2026-98101

A flaw was found in the Linux kernel's IPv6 networking subsystem. A race condition in the ip6_mc_source() function allows concurrent packet processing routines to observe inconsistent multicast source filter lists when entries are modified in place. A local user could exploit this flaw by changing multicast socket filter settings during active packet reception, causing torn address reads and corrupted filter state. This vulnerability can lead to improper packet filtering or a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.