UBUNTU-CVE-2026-68323

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-2026-68405

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

UBUNTU-CVE-2026-68170

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix stale skb-sk reference on subflow close The backlog list is updated by mptcpdataready under mptcpdatalock. The cleanup of backlog references to a closing subflow, however, was performed in mptcpclosessk, before...

CVE-2026-68405 wifi: mac80211: free AP_VLAN bc_buf SKBs outside IRQ lock

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: free APVLAN bcbuf SKBs outside IRQ lock ieee80211dostop removes APVLAN packets from the parent AP ps-bcbuf while holding ps-bcbuf.lock with IRQs disabled. It then calls ieee80211freetxskb before dropping the lock...

CVE-2026-68398 ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF

In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tprecv runs in the L2TP UDP-encap softirq RX path: l2tpudpencaprecv - l2tprecvcommon - pppol2tprecv - pppinput&po-chan It runs under rcureadlock holding...

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...

PT-2026-69805

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the mac80211 wifi component where the ieee80211 do stop function removes AP VLAN packets from the parent ps-bc buf while holding the ps-bc buf.lock with interrupts IRQ...

Linux Distros Unpatched Vulnerability : CVE-2026-68323

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tipc: serialize udp bearer replicast list updates tipcudprcastadd and cleanupbearer both update ub-rcast.list with listaddrcu / listdelrcu, but nothing serializ...

SUSE CVE-2026-64568

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix unsolbcastproberesp double free on alloc failure ieee80211setunsolbcastproberesp calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

CVE-2026-17523 can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet

In the Linux kernel, the following vulnerability has been resolved: can: bcm: switch timer to HRTIMERMODESOFT and remove hrtimertasklet This patch switches the timer to HRTIMERMODESOFT, which executed the timer callback in softirq context and removes the hrtimertasklet...

CVE-2026-17523: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: can: bcm: switch timer to HRTIMERMODESOFT and remove hrtimertasklet This patch switches the timer to HRTIMERMODESOFT, which executed the timer callback in softirq context and removes the hrtimertasklet...

CVE-2026-64424: Undefined Security Weakness

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...

SUSE CVE-2026-64177

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...

CVE-2026-64113

In the Linux kernel, the following vulnerability has been resolved: ixgbevf: fix use-after-free in VEPA multicast source pruning ixgbevfcleanrxirq prunes frames whose source MAC matches the VF's own address VEPA multicast workaround by freeing the skb and continuing to the next descriptor:...

CVE-2026-64177 phonet/pep: disable BH around forwarded sk_receive_skb()

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...

CVE-2026-64177

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...

CVE-2026-63980

In the Linux kernel, the following vulnerability has been resolved: net/handshake: Use spinlockbh for hnlock nvmettcpstatechange, a socket callback that runs in BH context, can reach handshakereqcancel via nvmettcpschedulereleasequeue and tlshandshakecancel. handshakereqcancel acquires hn-hnlock...

CVE-2026-63865

Technical details are not publicly available in the provided documents. Monitor for updates from vendors and security advisories to obtain affected products, impact, and remediation.

CVE-2026-64177: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: phonet/pep: disable BH around forwarded skreceiveskb The networking receive path is usually run from softirq context, but protocols that take the socket lock may have packets stored in the backlog and processed later from process...

CVE-2026-63968: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6selectpath Found while auditing the same pattern Sashiko reported in rt6fillnode 1. Apply the same fix as commit f8d8ce1b515a "ipv6: fix possible infinite loop in fib6infousesdev". Writers...