CLSA-2025-1746479711 kernel-uek: Fix of 225 CVEs

sctp: sysctl: authenable: avoid using current-nsproxy - sctp: sysctl: cookiehmacalg: avoid using current-nsproxy CVE-2025-21640 - bpf: Use preemptcount directly in bpfsendsignalcommon - Revert "sctp: sysctl: cookiehmacalg: avoid using current-nsproxy" - jfs: fix slab-out-of-bounds read in eaget -...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: SCTP: Fixed a memory leak in sctpstreamoutqmigrate. When sctpstreamoutqmigrate is called to release resources related to streamouts, the memory pointed to by priohead in the streamout context is not released properly. The details...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: sctp: Set skstate back to CLOSED if autobind fails in sctplistenstart. In sctplistenstart, called by sctpinetlisten, it should set skstate back to CLOSED if sctpautobind fails for any reason. Otherwise, the next time sctpinetlist...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: SCTP: The initialization of additional fields in sctpv6fromsk was incorrect, leading to undefined behavior. SYZbot discovered that sin6scopeid was not properly initialized, causing undefined behavior. sin6scopeid and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Properly handles tunneled traffic when using GSO fallback for IPV6CSUM. NETIFFIPV6CSUM only indicates support for packet checksum offloading without IPv6 extension headers. Packets with extension headers must rely on...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: sctp: Linearize cloned GSO packets in sctprcv. The cloned headskb still shares these frag SKBs in the fraglist with the original headskb. Accessing these frag SKBs is not safe. syzbot reported two bugs caused by the use of...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: SCTP: Use callrcu to free endpoints This patch delays the endpoint freeing process by calling callrcu, in order to address another use-after-free issue in sctpsockdump: BUG: KASAN: Use-after-free in lockacquire+0x36d9/0x4c20...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A null pointer dereference issue was discovered in the SCTP network protocol within the net/sctp/streamsched.c file in the Linux kernel. If the streamin allocation fails, the streamout resource is freed, allowing further access to it. A local user could exploit this vulnerability to crash the...

CVE-2026-68320

In the Linux kernel, the following vulnerability has been resolved: sctp: fix authchunklist capacity check in sctpauthepaddchunkid sctpauthepaddchunkid uses SCTPNUMCHUNKTYPES 20 as the capacity limit for ep-authchunklist, allowing it to hold up to 20 chunk entries paramhdr.length up to 24. Howeve...

EUVD-2026-55562

In the Linux kernel, the following vulnerability has been resolved: sctp: fix authhmacs array size in struct sctpcookie The authhmacs array in struct sctpcookie is supposed to store a complete SCTPAUTHHMACALGO parameter, which consists of a struct sctpparamhdr followed by N HMAC identifiers...

CVE-2026-68320 sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid

In the Linux kernel, the following vulnerability has been resolved: sctp: fix authchunklist capacity check in sctpauthepaddchunkid sctpauthepaddchunkid uses SCTPNUMCHUNKTYPES 20 as the capacity limit for ep-authchunklist, allowing it to hold up to 20 chunk entries paramhdr.length up to 24. Howeve...

EUVD-2026-55547

In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown procsctpdoudpport starts per-net SCTP UDP tunneling sockets when net.sctp.udpport is set, and stops/restarts them when the sysctl value changes. The netns exit path does not st...

CVE-2026-68161

Summary of CVE-2026-68161 : In the Linux kernel, SCTP UDP tunnel sockets created per-net SCTP UDP port (net.sctp.udp_port) are not stopped when a network namespace (netns) is torn down, potentially leaving sockets installed during teardown. The root cause is that the netns exit path does not stop...

CVE-2026-64564

In the Linux kernel, the following vulnerability has been resolved: sctp: don't free the ASCONF's own transport in DEL-IP processing sctpprocessasconf caches the transport the ASCONF chunk is processed against in asconf-transport == chunk-transport, set once in sctprcv. For an ASCONF located...

CVE-2026-64564

CVE-2026-64564 concerns a Linux kernel SCTP DEL-IP processing bug. The vulnerability arises because sctp_process_asconf() caches the ASCONF transport in asconf->transport (tied to chunk->transport) and that transport can be different from the packet source address when looked up via __sctp_...

CVE-2026-64551

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP. This vulnerability allows a remote attacker or a local unprivileged user to potentially access and disclose sensitive information. By sending a malformed error message, the system can be tricked into reading and the...

SUSE CVE-2026-64551

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

UBUNTU-CVE-2026-64551

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64551 sctp: validate STALE_COOKIE cause length before reading staleness

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64551

CVE-2026-64551 concerns the Linux kernel SCTP stack. A vulnerability in the handling of an ERROR chunk with a STALE_COOKIE cause in the COOKIE_ECHOED state can cause an out-of-bounds read: the code reads the 4-byte Measure of Staleness from after the cause header, but the staleness field may not ...