CVE-2026-64424 netpoll: fix a use-after-free on shutdown path

In the Linux kernel, the following vulnerability has been resolved: netpoll: fix a use-after-free on shutdown path There is a use-after-free error on netpoll, which is clearly detected by KASAN. BUG: KASAN: slab-use-after-free in rawspinlockirqsave+0x3b/0x80 Read of size 1 at addr ... by task...

CVE-2026-64423

CVE-2026-64423 affects the Linux kernel IPv4 IGMP multicast handling. The root cause is that, when a device is destroyed, ip_mc_destroy_dev() decrements the multicast membership refcount but fails to unlink the membership from the device’s multicast hash table (mc_hash) before RCUs reclaim the ob...

CVE-2026-64419 mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

EUVD-2026-48963

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64419

The CVE-2026-64419 entry concerns the Linux kernel mm/shrinker path, where shrinker_debugfs_count_show() invokes the ->count_objects() callback while holding rcu_read_lock, allowing a sleep in that context. The root cause is that the debugfs count probe for memcg-aware shrinkers slept inside a...

CVE-2026-64419 mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

CVE-2026-64419

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

EUVD-2026-48896

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

CVE-2026-64352

CVE-2026-64352 concerns the Linux kernel’s BPF LPM trie: sleepable BPF programs can access LPM map data due to incorrect rcu dereference checks in trie_lookup_elem/trie_update_elem/trie_delete_elem. The issue arises because trie_lookup_elem() uses rcu_dereference_check() with a condition that pas...

CVE-2026-64352 bpf: Allow LPM map access from sleepable BPF programs

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

SUSE CVE-2026-64211

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...

SUSE 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...

Linux Distros Unpatched Vulnerability : CVE-2026-64248

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2026-64250

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

PT-2026-64756

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.18 Description An issue exists in the xfrm module where the xfrm policy fini function incorrectly calls synchronize rcu within the .exit handler of xfrm net ops. This violates the guidelines in include/net/net namespace....

PT-2026-64640

In the Linux kernel, the following vulnerability has been resolved: mm/shrinker: do not hold RCU lock in shrinker debugfs count show Reading the debugfs "count" file of a memcg-aware shrinker can sleep inside an RCU read-side critical section: BUG: sleeping function called from invalid context at...

Linux Distros Unpatched Vulnerability : CVE-2026-64419

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/shrinker: do not hold RCU lock in shrinkerdebugfscountshow Reading the debugfs count file of a memcg-aware shrinker can sleep inside an RCU read-side critica...

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...

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...

DEBIAN-CVE-2026-64211

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...