Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Free reuseport cBPF prog after RCU grace period. Eulgyu Kim reported the splat below with a repro. 0 The repro sets up a UDP reuseport group with a cBPF prog and replaces it with a new one while another thread is sending a U...

SUSE CVE-2026-64459

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

CVE-2026-64459

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

UBUNTU-CVE-2026-64459

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

CVE-2026-64459

Summary: CVE-2026-64459 is a use-after-free risk in the Linux kernel TCP-AO code. A previous patch removed the RCU-based freeing of TCP-AO/TCP-MD5 info in tcp_ao_destroy_sock(), which could allow a race during socket connect when a socket is in TCP_SYN_SENT and still discoverable in the hash/inbo...

EUVD-2026-48803

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

Linux Distros Unpatched Vulnerability : CVE-2026-64459

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c tcp: Free TCP-AO/TCP-MD5 info/keys without RCU removed the callrcu callback from...

DEBIAN-CVE-2026-64250

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Report dying CPU to RCU in stopthiscpu This is a port of MIPS commit 9f3f3bdc6d9dac1 "MIPS: smp: report dying CPU to RCU in stopthiscpu". smpsendstop parks all secondary CPUs in stopthiscpu. And the function marks the...

DEBIAN-CVE-2026-64248

In the Linux kernel, the following vulnerability has been resolved: MIPS: smp: report dying CPU to RCU in stopthiscpu smpsendstop parks all secondary CPUs in stopthiscpu. The function marks the CPU offline for the scheduler via setcpuonlinefalse but never informs RCU, so RCU keeps expecting a...

CVE-2026-64250

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Report dying CPU to RCU in stopthiscpu This is a port of MIPS commit 9f3f3bdc6d9dac1 "MIPS: smp: report dying CPU to RCU in stopthiscpu". smpsendstop parks all secondary CPUs in stopthiscpu. And the function marks the...

UBUNTU-CVE-2026-64248

In the Linux kernel, the following vulnerability has been resolved: MIPS: smp: report dying CPU to RCU in stopthiscpu smpsendstop parks all secondary CPUs in stopthiscpu. The function marks the CPU offline for the scheduler via setcpuonlinefalse but never informs RCU, so RCU keeps expecting a...

UBUNTU-CVE-2026-64250

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Report dying CPU to RCU in stopthiscpu This is a port of MIPS commit 9f3f3bdc6d9dac1 "MIPS: smp: report dying CPU to RCU in stopthiscpu". smpsendstop parks all secondary CPUs in stopthiscpu. And the function marks the...

CVE-2026-64248 MIPS: smp: report dying CPU to RCU in stop_this_cpu()

In the Linux kernel, the following vulnerability has been resolved: MIPS: smp: report dying CPU to RCU in stopthiscpu smpsendstop parks all secondary CPUs in stopthiscpu. The function marks the CPU offline for the scheduler via setcpuonlinefalse but never informs RCU, so RCU keeps expecting a...

SUSE CVE-2026-64075

In the Linux kernel, the following vulnerability has been resolved: fprobe: Fix unregisterfprobe to wait for RCU grace period Commit 4346ba1604093 "fprobe: Rewrite fprobe on function-graph tracer" changed fprobe to register struct fprobe to an rcu-hlist, but it forgot to wait for RCU GP. Thus the...

SUSE CVE-2026-64188

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: fix endpoint use-after-free in rmnetdellink rmnetdellink removes the endpoint from the hash table with hlistdelinitrcu and then immediately frees it with kfree. However, RCU readers on the receive path...

CVE-2026-64096

A flaw was found in the batman-adv Better Approach To Mobile Ad-hoc Networking multicast mcast module of the Linux kernel. The batadvmcastpurgeorig function removes entries from RCU Read-Copy-Update-protected lists without ensuring that all active readers have finished accessing those entries. Th...

CVE-2026-64188 net: qualcomm: rmnet: fix endpoint use-after-free in rmnet_dellink()

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: fix endpoint use-after-free in rmnetdellink rmnetdellink removes the endpoint from the hash table with hlistdelinitrcu and then immediately frees it with kfree. However, RCU readers on the receive path...

CVE-2026-64188

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: fix endpoint use-after-free in rmnetdellink rmnetdellink removes the endpoint from the hash table with hlistdelinitrcu and then immediately frees it with kfree. However, RCU readers on the receive path...

CVE-2026-64188

CVE-2026-64188 is a Linux kernel vulnerability in the Qualcomm rmnet path where rmnet_dellink() frees an endpoint with kfree() while RCU readers may still reference ep->egress_dev, causing use-after-free and potential kernel crash. The fix adds an rcu_head to struct rmnet_endpoint and replaces...

Linux Distros Unpatched Vulnerability : CVE-2026-64096

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: mcast: fix use-after-free in orignode RCU release batadvmcastpurgeorig removes entries from RCU-protected hlists but does not wait for an RCU grace...