CVE-2026-74704

A flaw was found in the Linux kernel. The schcake ACK filter, responsible for processing network packets, contains a vulnerability. A remote attacker could send specially crafted malformed IP packets. This could lead to the system logging excessive warnings or, under specific configurations, caus...

CVE-2026-74688

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. This vulnerability arises when the sctpmakeheartbeatack function caches a destination transport without taking a proper reference. If the associated peer transport is removed while a HEARTBEAT ACK chu...

CVE-2026-74704

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74688

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-2026-74588

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

CVE-2026-74704

CVE-2026-74704 affects the Linux kernel component net/sched: sch_cake (the CAQoS scheduler). The ACK filter in sch_cake parses packets to locate the TCP header and filter duplicated ACKs when a flow is backlogged. A WARN_ON(1) in this parsing path can be triggered by a malformed IP header , leadi...

EUVD-2026-64391

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704 net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704 net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

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...

PT-2026-79709

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch cake: drop WARN ON1 for malformed packets in ACK filter The sch cake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARN ON1 which...

CVE-2026-74282

A flaw was found in the Linux kernel's Transparent Inter-Process Communication TIPC component. A remote or local attacker could send an oversized connection acknowledgment ACK message, leading to an integer underflow. This underflow can cause the connection to become permanently congested,...

SUSE CVE-2026-74489

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix tidtx use-after-free on BA session stop ieee80211stoptxbacb hands tidtx to kfreercu through ieee80211removetidtx, and then reads tidtx-ndp after dropping sta-lock: ieee80211removetidtxsta, tid; / kfreercutidtx...

CVE-2026-74489 wifi: mac80211: fix tid_tx use-after-free on BA session stop

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix tidtx use-after-free on BA session stop ieee80211stoptxbacb hands tidtx to kfreercu through ieee80211removetidtx, and then reads tidtx-ndp after dropping sta-lock: ieee80211removetidtxsta, tid; / kfreercutidtx...

CVE-2026-74489

CVE-2026-74489 describes a use-after-free in the Linux kernel’s wifi mac80211 stack (tid_tx) during BA session stop. The bug occurs when ieee80211_stop_tx_ba_cb() hands tid_tx to kfree_rcu() via ieee80211_remove_tid_tx(), then reads tid_tx->ndp after dropping sta->lock. The read happens out...

EUVD-2026-59682

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix tidtx use-after-free on BA session stop ieee80211stoptxbacb hands tidtx to kfreercu through ieee80211removetidtx, and then reads tidtx-ndp after dropping sta-lock: ieee80211removetidtxsta, tid; / kfreercutidtx...

CVE-2026-74282

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...

EUVD-2026-59429

In the Linux kernel, the following vulnerability has been resolved: tipc: prevent sntunacked underflow on CONNACK tipcskconnprotorcv subtracts the peer-supplied connection ack count from the unsigned 16-bit send counter sntunacked without checking that it does not exceed the number of messages...

CVE-2026-74282

In the Linux kernel vulnerability CVE-2026-74282, the TIPC stack allows an oversized CONN_ACK to cause snt_unacked to underflow. The root cause is tipc_sk_conn_proto_rcv() subtracting the peer-supplied ack count from an unsigned 16-bit snt_unacked without ensuring it does not exceed the outstandi...

EUVD-2026-59312

In the Linux kernel, the following vulnerability has been resolved: sctp: fix errchunk memory leaks in INIT handling When sctpverifyinit encounters unrecognized parameters, it allocates an errchunk to report them. However, this chunk is leaked in several code paths: 1. In sctpsfdo51Binit, if...