CVE-2026-64543

In the Linux kernel, the following vulnerability has been resolved: tipc: fix use-after-free of the discoverer in tipcdiscrcv bearerdisable frees b-disc with tipcdiscdelete's plain kfree, but tipcdiscrcv still dereferences b-disc in RX softirq under rcureadlock tipcudprecv - tipcrcv - tipcdiscrcv...

The vulnerability of the rcu_barrier() function in Linux operating systems allows a attacker to compromise the accessibility of protected information.

The vulnerability of the rcubarrier function in Linux operating systems is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to compromise the accessibility of protected information...