CVE-2026-68323

A flaw was found in the Linux kernel's TIPC Transparent Inter-Process Communication module. A race condition exists in the handling of UDP bearer replicast list updates. This can occur when tipcudprcastadd and cleanupbearer functions attempt to update the list concurrently without proper...

CVE-2026-68323

Summary of CVE-2026-68323 (tipc): In Linux kernel TIPC, udp bearer replication list updates (ub->rcast.list) were updated by tipc_udp_rcast_add() and cleanup_bearer() without proper serialization, racing via encap softirq and workqueue paths. This could corrupt the list (list_del corruption) d...

EUVD-2026-55424

In the Linux kernel, the following vulnerability has been resolved: tipc: serialize udp bearer replicast list updates tipcudprcastadd and cleanupbearer both update ub-rcast.list with listaddrcu / listdelrcu, but nothing serializes them. The add runs from the encap receive softirq via...

CVE-2026-68323 tipc: serialize udp bearer replicast list updates

In the Linux kernel, the following vulnerability has been resolved: tipc: serialize udp bearer replicast list updates tipcudprcastadd and cleanupbearer both update ub-rcast.list with listaddrcu / listdelrcu, but nothing serializes them. The add runs from the encap receive softirq via...

SUSE 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...

Linux Distros Unpatched Vulnerability : CVE-2026-64543

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tipc: fix use-after-free of the discoverer in tipcdiscrcv bearerdisable frees b-disc with tipcdiscdelete's plain kfree, but tipcdiscrcv still dereferences b-di...

CVE-2026-64543 tipc: fix use-after-free of the discoverer in tipc_disc_rcv()

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...

CVE-2026-64543 tipc: fix use-after-free of the discoverer in tipc_disc_rcv()

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...

CVE-2026-64543

CVE-2026-64543 — Linux TIPC use-after-free fixed . The vulnerability occurs in tipc_disc_rcv() where the discoverer object is freed with kfree while still referenced under an RCU read-side critical section, allowing a local unprivileged user to crash the system via TIPCv2 genl interactions. The f...

CVE-2024-26663

In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipcudpnlbeareradd syzbot reported the following general protection fault 1: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 1 PREEMPT SMP KASAN...

CVE-2024-26663

In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipcudpnlbeareradd syzbot reported the following general protection fault 1: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 1 PREEMPT SMP KASAN...

CVE-2024-26663

In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipcudpnlbeareradd syzbot reported the following general protection fault 1: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 1 PREEMPT SMP KASAN...