PT-2026-79634

In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb clientid arr A dibs device interrupt handler can be active after dibs dev del and may still access dmb clientid arr. UAF In case of a failure in dibs dev add being called by dibs lo dev probe dmb...

PT-2026-79593

In the Linux kernel, the following vulnerability has been resolved: sctp: keep chunk-transport in step with the list it is queued on sctp outq flush rtx moves a gap-acked chunk onto another transport's transmitted list without updating chunk-transport: if chunk-tsn gap acked list move...

PT-2026-79620

In the Linux kernel, the following vulnerability has been resolved: vxlan: do not arm the ageing timer on a device that is down vxlan changelink arms vxlan-age timer whenever the requested ageing interval differs from the configured one: if conf.age interval != vxlan-cfg.age interval mod...

PT-2026-79647

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb: Fix UAF at delayed release of MIDI2 EPs The recent fix for UAF in ump to endpoint caused another UAF because it tries to dereference the UMP endpoint object, but this might be executed at a delayed context where the...

PT-2026-79693

In the Linux kernel, the following vulnerability has been resolved: sctp: clear control chunk transport if it is being removed sctp make heartbeat ack caches the destination transport in chunk-transport without taking a reference. When src out of asoc ok is enabled, the HEARTBEAT ACK may remain...

PT-2026-79692

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9 wdt: prevent timer rearm during teardown at91 ping rearms the watchdog timer from its callback. timer delete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or...

PT-2026-79661

In the Linux kernel, the following vulnerability has been resolved: ipv4: fix use-after-free in fib nhc update mtu fib nhc update mtu walks the nexthop exception table under RTNL, but RTNL does not serialize this walk with PMTU exception updates. The walk uses rcu dereference protected with a...

PT-2026-79695

In the Linux kernel, the following vulnerability has been resolved: s390/ism: Fix UAF of sba and ieq during ism dev exit A ism interrupt handler can be active in parallel with ism dev exit, accessing freed data structures. No new interrupts will be generated after unregister ieq. Drain ongoing...

PT-2026-79735

In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfs server' during a FREE STATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a FREE STATEID operation gets delayed for whatever reason. Fix this by bumping the refcount of the...

CVE-2026-18299

A flaw was found in GStreamer. This use-after-free vulnerability in the rtpsbcdepay element, specifically during the processing of Real-time Transport Protocol RTP payload elements, allows a remote attacker to execute arbitrary code. The issue arises from a lack of validation for an object's...

CVE-2026-77235

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to...

CVE-2026-74583

A flaw was found in the Linux kernel's net/sched: clsroute component. A race condition exists in the route4 classifier's fastmap cache, where a reader can re-cache a pointer to a filter that has already been freed by a writer. This can lead to a use-after-free condition, allowing subsequent packe...

CVE-2026-74581

A use-after-free vulnerability was found in the Linux kernel's IPv6 FIB rule lookup path. In fib6rulesuppress, when a route is suppressed and released via ip6rtputflags, the res-rt6 pointer is not cleared. If no later rule supplies a replacement route, fib6rulelookup returns the stale freed rt6in...

CVE-2026-77235 Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to...

CVE-2026-77235

FreeRTOS-Kernel versions prior to 11.3.1 contain a missing privilege verification in the secure context cleanup handler (SecureContext_FreeContext). A local attacker with low privileges can trigger a use-after-free condition in secure-world memory through the SVC handler for secure context deallo...

EUVD-2026-64013

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to...

CVE-2026-74583

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

CVE-2026-39909

llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's GRAPHRECOMPUTE handler that allows unauthenticated remote attackers to achieve arbitrary read and write access by storing a computation graph, freeing referenced buffers, and reclaiming freed memory with...

Security Bulletin: Vulnerabilities in IBM AIX and PowerVM VIOS

Summary Updated Aug 21, 2026: Updated the summary to highlight the additional installation instructions. IBM is providing security updates for supported AIX and VIOS releases that are under active fix support. Delivered through Service Packs SPs and Fix Packs FPs, these updates remediate...

CVE-2026-74583

CVE-2026-74583 is a use-after-free race condition in the Linux kernel's net/sched: cls_route (route4 classifier). The classifier maintains a 16-slot fastmap cache storing raw struct route4_filter pointers indexed by (id, iif). A race exists between the reader (route4_classify) and the writer (rou...