PT-2026-90195

In the Linux kernel, the following vulnerability has been resolved: sctp: stop processing a packet once its association is deleted sctp endpoint bh rcv looks the association up only when chunk-asoc is NULL, and caches the result in chunk-asoc and chunk-transport without taking a reference. A pack...

kernel: sctp: auth: verify auth requirement when auth_chunk is NULL

A flaw was found in the Stream Control Transmission Protocol SCTP authentication mechanism within the Linux kernel. The sctpauthchunkverify function incorrectly processes authentication chunks, leading to authentication requirements being silently bypassed. This can occur under specific condition...

kernel: sctp: fix auth_hmacs array size in struct sctp_cookie

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. An incorrect array size calculation for the authhmacs field within the sctpcookie structure could lead to a buffer overflow. During the initialization of an SCTP association, if four HMAC identifiers...

kernel: sctp: diag: reject stale associations in dump_one path

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP diagnostics. When performing a socket diagnostic sockdiag lookup, the system may attempt to access memory related to an SCTP association that has already been freed. This can lead to an out-of-bounds read from...

kernel: sctp: fix race between sctp_wait_for_connect and peeloff

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. A race condition exists in the sctpwaitforconnect function, where a socket lock is temporarily released and re-acquired. During this brief period, another process can move the SCTP association to a...

kernel: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. A remote attacker could exploit this by sending a specially crafted COOKIEECHO chunk to a listening SCTP server. The server's failure to properly validate the length of a cached peer INIT chunk within...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

kernel: sctp: validate stream count in sctp_process_strreset_inreq()

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. When processing a Stream Reset Incoming Request RESETINREQUEST from a peer, the kernel does not properly validate the stream count. This can lead to an integer overflow when calculating the size for t...

kernel: sctp: validate stream count in sctp_process_strreset_inreq()

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. When processing a Stream Reset Incoming Request RESETINREQUEST from a peer, the kernel does not properly validate the stream count. This can lead to an integer overflow when calculating the size for t...

kernel: sctp: fix race between sctp_wait_for_connect and peeloff

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. A race condition exists in the sctpwaitforconnect function, where a socket lock is temporarily released and re-acquired. During this brief period, another process can move the SCTP association to a...

kernel: sctp: auth: verify auth requirement when auth_chunk is NULL

A flaw was found in the Stream Control Transmission Protocol SCTP authentication mechanism within the Linux kernel. The sctpauthchunkverify function incorrectly processes authentication chunks, leading to authentication requirements being silently bypassed. This can occur under specific condition...

kernel: sctp: diag: reject stale associations in dump_one path

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP diagnostics. When performing a socket diagnostic sockdiag lookup, the system may attempt to access memory related to an SCTP association that has already been freed. This can lead to an out-of-bounds read from...

kernel: sctp: fix auth_hmacs array size in struct sctp_cookie

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. An incorrect array size calculation for the authhmacs field within the sctpcookie structure could lead to a buffer overflow. During the initialization of an SCTP association, if four HMAC identifiers...

Important: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

kernel: sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP implementation. A remote attacker could exploit this by sending a specially crafted COOKIEECHO chunk to a listening SCTP server. The server's failure to properly validate the length of a cached peer INIT chunk within...

RHEL 8 : kernel (RHSA-2026:66325)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:66325 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Denial of Servi...

RHEL 8 : kernel-rt (RHSA-2026:66324)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:66324 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

AlmaLinux 8 : kernel (ALSA-2026:66325)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:66325 advisory. kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset CVE-2025-68745 kernel: scsi: target:...

Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset CVE-2025-68745 kernel:...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Denial of Service in qla2xxx SCSI driver due to improper command handling after chip reset CVE-2025-68745 kernel: scsi: target: configfs: Bound snprintf return in...