CVE-2026-64119 l2tp: use list_del_rcu in l2tp_session_unhash

In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU indefinitely in l2tpsessiongetbyifname by issuing L2TPCMDSESSIONGET on L2TPATTRIFNAME concurrently with L2TPCMDSESSIONCREATE and...

CVE-2026-64119

In the Linux kernel, the following vulnerability has been resolved: l2tp: use listdelrcu in l2tpsessionunhash An unprivileged local user can pin a host CPU indefinitely in l2tpsessiongetbyifname by issuing L2TPCMDSESSIONGET on L2TPATTRIFNAME concurrently with L2TPCMDSESSIONCREATE and...

CVE-2026-64119

CVE-2026-64119: In the Linux kernel, the vulnerability affects the L2TP subsystem. The bug arises in l2tp_session_unhash() where a session is removed from tunnel->session_list with list_del_init(), while readers traverse the list with list_for_each_entry_rcu() under rcu_read_lock_bh(). This le...

CVE-2026-64096 batman-adv: mcast: fix use-after-free in orig_node RCU release

In the Linux kernel, the following vulnerability has been resolved: 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 period before returning. Concurrent RCU readers may still accesses...

CVE-2026-64096 batman-adv: mcast: fix use-after-free in orig_node RCU release

In the Linux kernel, the following vulnerability has been resolved: 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 period before returning. Concurrent RCU readers may still accesses...

CVE-2026-64096

Summary of CVE-2026-64096 (Linux kernel, batman-adv): A use-after-free in batman-adv multicast origin node release was fixed. The function batadv_mcast_purge_orig() removed entries from RCU-protected hlists without waiting for an RCU grace period, risking access to freed memory by concurrent read...

EUVD-2026-45655

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compatriscvgprset calls cregstoregs unconditionally, even when userregsetcopyin fails. Since cregs is an uninitialized stack variable, a copyin failure causes...

CVE-2026-64082 riscv: Fix register corruption from uninitialized cregs on error

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix register corruption from uninitialized cregs on error compatriscvgprset calls cregstoregs unconditionally, even when userregsetcopyin fails. Since cregs is an uninitialized stack variable, a copyin failure causes...

EUVD-2026-45652

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64079 netfilter: x_tables: allocate hook ops while under mutex

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64075

The CVE describes a Linux kernel issue in fprobe: after registering fprobe to an rcu-hlist via a function-graph tracer rewrite, unregister_fprobe() did not wait for the RCU grace period, risking use-after-free when the fprobe is released soon after unregistering in fprobe events and sample code. ...

CVE-2026-64075 fprobe: Fix unregister_fprobe() to wait for RCU grace period

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...

EUVD-2026-45648

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...

CVE-2026-64073 irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: irqwork: Fix use-after-free in irqworksingle on PREEMPTRT On PREEMPTRT, non-HARD irqwork runs in per-CPU kthreads via runirqworkd, so irqworksync uses rcuwait to wait for BUSY==0. After irqworksingle clears BUSY via atomiccmpxchg...

EUVD-2026-45646

In the Linux kernel, the following vulnerability has been resolved: irqwork: Fix use-after-free in irqworksingle on PREEMPTRT On PREEMPTRT, non-HARD irqwork runs in per-CPU kthreads via runirqworkd, so irqworksync uses rcuwait to wait for BUSY==0. After irqworksingle clears BUSY via atomiccmpxchg...

CVE-2026-64063

CVE-2026-64063 concerns the Linux kernel netfs subsystem, where streaming writes could partially overwrite dirty folios without correctly updating state. The issue occurred when a partially written streaming page was overwritten by a subsequent write: netfs_perform_write() could copy over the pag...

CVE-2026-64063 netfs: Fix streaming write being overwritten

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix streaming write being overwritten In order to avoid reading whilst writing, netfslib will allow "streaming writes" in which dirty data is stored directly into folios without reading them first. Such folios are marked...

CVE-2026-64057

The CVE-2026-64057 entry concerns the Linux kernel AFS (Andrew File System) subsystem and a locking flaw around symbolic links processed by afs_get_link(). The root causes described across sources are: (1) no locking around afs_read_single() to prevent races between concurrent ->get_link() cal...

EUVD-2026-45630

In the Linux kernel, the following vulnerability has been resolved: afs: Fix the locking used by afsgetlink The afs filesystem in the kernel doesn't do locking correctly for symbolic links. There are a number of problems: 1 It doesn't do any locking around afsreadsingle to prevent races between...

CVE-2026-64057 afs: Fix the locking used by afs_get_link()

In the Linux kernel, the following vulnerability has been resolved: afs: Fix the locking used by afsgetlink The afs filesystem in the kernel doesn't do locking correctly for symbolic links. There are a number of problems: 1 It doesn't do any locking around afsreadsingle to prevent races between...