K000163363: Linux kernel vulnerability CVE-2026-43503

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers pskbcopyfclone and skbshift fail to propagate the SKBFLSHAREDFRAG bit in skbshinfo-flags when moving...

CVE-2026-89950 batman-adv: mcast: linearize skbuff for packet generation

In the Linux kernel, the following vulnerability has been resolved: batman-adv: mcast: linearize skbuff for packet generation batadvmcastforwpacket and batadvmcastforwscrape is not only called indirectly by the unsharing+linearizing batadvrecvmcastpacket handler. When it is called indirectly by...

CVE-2026-89950 batman-adv: mcast: linearize skbuff for packet generation

In the Linux kernel, the following vulnerability has been resolved: batman-adv: mcast: linearize skbuff for packet generation batadvmcastforwpacket and batadvmcastforwscrape is not only called indirectly by the unsharing+linearizing batadvrecvmcastpacket handler. When it is called indirectly by...

CVE-2026-89950: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: batman-adv: mcast: linearize skbuff for packet generation batadvmcastforwpacket and batadvmcastforwscrape is not only called indirectly by the unsharing+linearizing batadvrecvmcastpacket handler. When it is called indirectly by...

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

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Changed the nlapolicy for bearer-related names to NLANULSTRING. The syzbot reported the following uninit-value access issues 1: ===================================================== BUG: KMSAN: uninit-value in strlen in...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: skbuff: Fix a race between coalescing and releasing SKBs Commit 1effe8ca4e34 "skbuff: fix coalescing for pagepool fragment recycling" allowed coalescing to proceed with non page pool page and page pool page when @from is cloned,...

Linux Distros Unpatched Vulnerability : CVE-2026-80977

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: skbuff: don't touch shared zerocopy state in skbtxerror skbtxerror completes the zerocopy uarg and clears SKBFLALLZEROCOPY, and skbzcopydowngrademanaged...

DEBIAN-CVE-2026-80977

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't touch shared zerocopy state in skbtxerror skbtxerror completes the zerocopy uarg and clears SKBFLALLZEROCOPY, and skbzcopydowngrademanaged clears SKBFLMANAGEDFRAGREFS. Both live in skbshinfo, which every clone...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: virtio/vsock: Fixed an uninit-value issue in virtiotransportrecvpkt KMSAN reported the following uninit-value access issues: ===================================================== BUG: KMSAN: uninit-value in...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-102134)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102134 advisory. In the Linux kernel, the following vulnerability has been resolved: ip6gre: make ip6greheader robust Over the years, syzbot found many ways to crash the kernel in...

Oracle Linux 9 : Unbreakable Enterprise kernel (ELSA-2026-500137)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500137 advisory. - KVM: x86: Check for invalid/obsolete root after making MMU pages available Sean Christopherson Orabug: 39832946 CVE-2026-64561 - x86/bugs: Make...

SUSE-SU-2026:3369-1 Security update for the Linux Kernel (Live Patch 17 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.63 fixes various security issues: The following security issues were fixed: - CVE-2026-46120: ip6gre: Use cached t-net in ip6erspanchangelink bsc1267893. - CVE-2026-46173: exit: prevent preemption of oopsing TASKDEAD task bsc1267723...

SUSE-SU-2026:2997-1 Security update for the Linux Kernel (Live Patch 26 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.112 fixes various security issues The following security issues were fixed: - CVE-2026-31758: usb: usbtmc: Flush anchored URBs in usbtmcrelease bsc1264094. - CVE-2026-43037: ip6tunnel: clear skb2-cb in ip4ip6err bsc1265197. -...

The vulnerability in the net/core/skbuff.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the net/core/skbuff.c module of the Linux operating system is related to the release of an incorrect pointer. Exploiting this vulnerability can allow an attacker to cause a service failure...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/hsr: A NULL pointer dereference was fixed in prpgetuntaggedframe. prpgetuntaggedframe calls pskbcopy to create frame-skbstd, but does not check whether the allocation fails. If pskbcopy returns NULL, skbclone is called with a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In the net:sock section, the issue of a “hardened usercopy panic” in sockrecverrqueue has been fixed. The skbufffclonecache structure was created without defining a usercopy region. Unlike the skbuffheadcache, which properly...

CVE-2026-52943 net: skbuff: fix missing zerocopy reference in pskb_carve helpers

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: fix missing zerocopy reference in pskbcarve helpers pskbcarveinsideheader and pskbcarveinsidenonlinear both copy the old skbsharedinfo header into a new buffer via memcpy, which includes the destructorarg pointer uar...

Siemens RUGGEDCOM RST2428P Active Debug Code (CVE-2026-22977)

In the Linux kernel, the following vulnerability has been resolved: net: sock: fix hardened usercopy panic in sockrecverrqueue skbufffclonecache was created without defining a usercopy region, 1 unlike skbuffheadcache which properly whitelists the cb field. 2 This causes a usercopy BUG when...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2026-31405: media: dvb-net: fix OOB access in ULE extension header tables bsc1261700. CVE-2026-31473: media: mc, v4l2: serialize REINIT and REQBUFS with reqqueuemutex...

Unbreakable Enterprise kernel security update

5.4.17-2136.356.4.1 - smb: client: reject userspace cifs.spnego descriptions Asim Viladi Oglu Manizada Orabug: 39463669 5.4.17-2136.356.4 - tun: free page on buildskb failure in tunxdpone Weiming Shi Orabug: 39429147 - tap: free page on error paths in tapgetuserxdp Weiming Shi Orabug: 39429147 -...