OESA-2026-4436 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: drm/dp/mst: fix buffer overflows in sideband chunk accumulation drmdpsidebandappendpayload has three related bugs when processing device-provided sideband reply...

kernel: ipv4: validate checksum_start before completing checksum

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during...

kernel: ipv4: validate checksum_start before completing checksum

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during...

Security Bulletin: IBM Guardium Data Protection is affected by multiple vulnerabilities

Summary IBM Guardium Data Protection has addressed these vulnerabilities in an update. Vulnerability Details CVEID:CVE-2026-59296 DESCRIPTION: Using untrusted, non-normalized input as-is for metrics data such as metric names, tag keys, or tag values is a dangerous antipattern that general-purpose...

kernel: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN

A flaw was found in the Linux kernel's XFS filesystem. When performing file range exchanges with the XFSEXCHMAPSINO1WRITTEN flag set, the reflink flag can be prematurely cleared from an inode that still manages shared written data. This can lead to data corruption between files that share data...

kernel: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets

In the Linux kernel, the following vulnerability has been resolved: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets When calling netlblconnsetattr, addr-safamily is used to determine the function behavior. If sk is an IPv4 socket, but the connect function is called with an...

kernel: calipso: Don't call calipso functions for AF_INET sk.

In the Linux kernel, the following vulnerability has been resolved: calipso: Don't call calipso functions for AFINET sk. syzkaller reported a null-ptr-deref in txoptget. 0 The offset 0x70 was of struct ipv6txoptions in struct ipv6pinfo, so struct ipv6pinfo was NULL there. However, this never...

kernel: vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets

A flaw was found in the vmxnet3 virtual network device driver within the Linux kernel. When processing Geneve-encapsulated packets, the vmxnet3gethdrlen function can incorrectly interpret header information, leading to a mismatch between expected and actual packet protocols or IP versions. This c...

kernel: ALSA: hda/cs35l41: Fix firmware load work teardown

A flaw was found in the Linux kernel's ALSA sound driver for the cs35l41 component. This vulnerability occurs because the driver fails to properly remove controls and cancel firmware load work during component unbinding or device removal, especially when firmware autostart is disabled. This can...

kernel: xfs: bounds-check buffer log item's dirty bitmap

A flaw was found in the Linux kernel's XFS filesystem. A local attacker, by mounting a specially crafted XFS image, could trigger an out-of-bounds write during log recovery. This vulnerability allows for kernel heap corruption, which could lead to a denial of service or potentially arbitrary code...

CVE-2026-98705

A flaw was found in the Linux kernel's mac80211 wireless subsystem. When wireless mesh proxy paths are removed or expire, the interface path counter is decremented without having been accounted for during path creation. An attacker can exploit this accounting flaw through rapid proxy path churn,...

CVE-2026-98704

A flaw was found in the Linux kernel's mac80211 wireless subsystem. When associating with a wireless network profile that omits certain configuration parameters, the system prematurely frees internal data structures and subsequently reads the freed memory during connection setup. A malicious acce...

CVE-2026-98703

A flaw was found in the Linux kernel's mac80211 wireless subsystem. A local privileged user can cause a Denial of Service DoS by writing an invalid index value to the fixed-rate debugfs debug filesystem interface. Due to missing input validation, the kernel uses the value to access data outside...

CVE-2026-98701

A flaw was found in the Linux kernel's mac80211 wireless networking subsystem. When adding mesh network routes, failed or duplicate path requests do not release reserved slot quotas. An adjacent attacker could exploit this issue by repeatedly triggering failed path additions to exhaust the mesh...

K000163837: Multiple Linux kernel vulnerabilities

Security Advisory Description CVE-2026-46129 In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in createspaceinfo error path When kobjectinitandadd fails, the call chain is: createspaceinfo - btrfssysfsaddspaceinfotype - kobjectinitandadd - failure -...

kernel: ipv4: validate checksum_start before completing checksum

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during...

kernel: ipv4: validate checksum_start before completing checksum

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during...

CVE-2026-98700

A flaw was found in the Linux kernel's mac80211 wireless subsystem. The transmission function for encapsulated Ethernet frames fails to set the operating frequency band from the channel context on non-Multi-Link Device MLD interfaces. A local user generating network traffic on an affected interfa...

CVE-2026-98697

A flaw was found in the Linux kernel's USB serial subsystem. A race condition during USB serial driver deregistration can result in a kernel memory leak. A local user with permissions to modify driver attributes can trigger this issue by writing to the dynamic identifier interface while the drive...

CVE-2026-98699

A flaw was found in the Linux kernel's mac80211 wireless subsystem. A race condition occurs during mesh network path deletion when an active lookup reinserts an entry into the fast transmission cache after the cache has been cleared, resulting in a use-after-free condition where memory is accesse...