CVE-2026-74705 udp: fix potential use-after-free in tunnel segmentation

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skbudptunnelsegment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

EUVD-2026-64392

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skbudptunnelsegment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

CVE-2026-74705

CVE-2026-74705 is a use-after-free vulnerability in the Linux kernel's UDP tunnel segmentation path. The function __skb_udp_tunnel_segment() saves a pointer to the UDP header before ensuring the tunnel header is in skb->head. If the subsequent skb_pull reallocates skb->head, the saved point...

CVE-2026-74705 udp: fix potential use-after-free in tunnel segmentation

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation skbudptunnelsegment gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb-head, the saved UDP header pointer is no longer...

CVE-2026-74700

CVE-2026-74700 is a race condition in the Linux kernel's net/sched cls_api subsystem, specifically in the tc_new_tfilter function. An unlocked classifier's request can prematurely decrement the reference count of a locked classifier's protocol object without holding rtnl_lock, leading to a use-af...

CVE-2026-74700 net/sched: cls_api: Always acquire rtnl_lock when destroying locked classifiers

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Always acquire rtnllock when destroying locked classifiers Another challenge with unlocked filters. There is a short window in tcnewtfilter where a tcfproto can be found and briefly referenced by a totally...

EUVD-2026-64387

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Always acquire rtnllock when destroying locked classifiers Another challenge with unlocked filters. There is a short window in tcnewtfilter where a tcfproto can be found and briefly referenced by a totally...

CVE-2026-74700 net/sched: cls_api: Always acquire rtnl_lock when destroying locked classifiers

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Always acquire rtnllock when destroying locked classifiers Another challenge with unlocked filters. There is a short window in tcnewtfilter where a tcfproto can be found and briefly referenced by a totally...

CVE-2026-74690

CVE-2026-74690 is a Use-After-Free (UAF) vulnerability in the Linux kernel's s390/ism (Integrated Service Management) driver. During ism_dev_exit(), an active ISM interrupt handler can access the sba and ieq data structures after they have been freed. The fix calls free_irq() to drain in-flight i...

CVE-2026-74690 s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

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

CVE-2026-74690 s390/ism: Fix UAF of sba and ieq during ism_dev_exit()

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

EUVD-2026-64377

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

CVE-2026-74688 sctp: clear control chunk transport if it is being removed

In the Linux kernel, the following vulnerability has been resolved: sctp: clear control chunk transport if it is being removed sctpmakeheartbeatack caches the destination transport in chunk-transport without taking a reference. When srcoutofasocok is enabled, the HEARTBEAT ACK may remain queued o...

CVE-2026-74688

A use-after-free vulnerability in the Linux kernel's SCTP implementation. The function sctp_make_heartbeat_ack() caches a destination transport pointer without taking a reference. When src_out_of_asoc_ok is enabled, a HEARTBEAT ACK may remain queued on control_chunk_list. If the peer transport is...

CVE-2026-74688 sctp: clear control chunk transport if it is being removed

In the Linux kernel, the following vulnerability has been resolved: sctp: clear control chunk transport if it is being removed sctpmakeheartbeatack caches the destination transport in chunk-transport without taking a reference. When srcoutofasocok is enabled, the HEARTBEAT ACK may remain queued o...

EUVD-2026-64375

In the Linux kernel, the following vulnerability has been resolved: sctp: clear control chunk transport if it is being removed sctpmakeheartbeatack caches the destination transport in chunk-transport without taking a reference. When srcoutofasocok is enabled, the HEARTBEAT ACK may remain queued o...

EUVD-2026-64374

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9wdt: prevent timer rearm during teardown at91ping rearms the watchdog timer from its callback. timerdelete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver...

CVE-2026-74687 watchdog: at91sam9_wdt: prevent timer rearm during teardown

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9wdt: prevent timer rearm during teardown at91ping rearms the watchdog timer from its callback. timerdelete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver...

CVE-2026-74687

This vulnerability affects the Linux kernel 's at91sam9_wdt watchdog driver. The root cause is a use-after-free : the at91_ping() callback rearms the watchdog timer, but timer_delete() neither waits for a running callback nor prevents rearm, so during probe failure or driver removal the timer can...

CVE-2026-74687 watchdog: at91sam9_wdt: prevent timer rearm during teardown

In the Linux kernel, the following vulnerability has been resolved: watchdog: at91sam9wdt: prevent timer rearm during teardown at91ping rearms the watchdog timer from its callback. timerdelete neither waits for a running callback nor prevents it from rearming the timer, so probe failure or driver...