CVE-2026-80876 ring-buffer: Fix event length with forced 8-byte alignment

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix event length with forced 8-byte alignment When RBFORCE8BYTEALIGNMENT is true, rbcalculateeventlength reserves the space of event-array0 for placing the data length and rbupdateevent stores the data length in...

CVE-2026-80876

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix event length with forced 8-byte alignment When RBFORCE8BYTEALIGNMENT is true, rbcalculateeventlength reserves the space of event-array0 for placing the data length and rbupdateevent stores the data length in...

CVE-2026-80876 ring-buffer: Fix event length with forced 8-byte alignment

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix event length with forced 8-byte alignment When RBFORCE8BYTEALIGNMENT is true, rbcalculateeventlength reserves the space of event-array0 for placing the data length and rbupdateevent stores the data length in...

CVE-2026-80876

CVE-2026-80876 affects the Linux kernel ring-buffer subsystem on architectures where RB_FORCE_8BYTE_ALIGNMENT is true (observed on riscv64 with CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y). The root cause is a mismatch in length calculation: rb_calculate_event_length() unconditionally reserves sizeof(even...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syst...

ring-buffer: Fix crash passing ERR_PTR to kthread_stop()

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Linux Distros Unpatched Vulnerability : CVE-2026-80730

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses...

Linux Distros Unpatched Vulnerability : CVE-2026-80742

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at...

PT-2026-85795

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ring-buffer where small events on architectures with RB FORCE 8BYTE ALIGNMENT set to true report a data length 4 bytes larger than expected. This occurs because rb...

CVE-2026-80876: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix event length with forced 8-byte alignment When RBFORCE8BYTEALIGNMENT is true, rbcalculateeventlength reserves the space of event-array0 for placing the data length and rbupdateevent stores the data length in...

PT-2026-91303

In the Linux kernel, the following vulnerability has been resolved: net/packet: defer vmalloc TX RING free until skbs finish AF PACKET TX RING skbs keep a raw pointer to their ring frame. The skb page references preserve page-backed ring blocks after pg vec is freed, but they do not preserve a...

RHEL 8 : kernel (RHSA-2026:63537)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:63537 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: packet: use consistent hardheaderlen i...

PT-2026-85719

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the AF PACKET TX RING where socket buffer skb page references preserve page-backed ring blocks after pg vec is freed, but fail to preserve vmalloc mappings. In the...

SUSE CVE-2026-80730

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...

CVE-2026-80742

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

AZL-99036 CVE-2026-80742 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80730

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...

AZL-99051 CVE-2026-80730 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...

CVE-2026-80730

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...

UBUNTU-CVE-2026-80730

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix crash passing ERRPTR to kthreadstop In testringbuffer's outfree cleanup loop, the check !rbthreadscpu only catches NULL entries and misses entries that hold an ERRPTR. rbthreads is static, so unassigned slots are...