Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skb-transportheader is set in bpfskbcheckmtu. The bpfskbcheckmtu helper needs to use skb-transportheader when the BPFMTUCHKSEGS flag is used: bpfskbcheckmtuskb, ifindex, &mtulen, 0, BPFMTUCHKSEGS. The transportheader i...

SUSE-SU-2026:22414-1 Security update for the Linux Kernel RT (Live Patch 23 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-46.1 fixes various security issues The following security issues were fixed: - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache bsc1261640. - CVE-2026-31504: net: fix fanout UAF in packetrelease via NETDEVUP race bsc126308...

SUSE-SU-2026:22420-1 Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-39.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache...

SUSE-SU-2026:22467-1 Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-38.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache...

SUSE-SU-2026:22464-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-30.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache...

CVE-2026-52943

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...

CVE-2026-52942

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...

UBUNTU-CVE-2026-52912

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfqueue: hold bridge skb-dev while queued brpassframeup rewrites skb-dev from the ingress port to the bridge master before queueing bridge LOCALIN packets. NFQUEUE only holds references on state.in/out and bridge...

CVE-2026-52931

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tpmeter: avoid use of uninit sender vars batadvtprecvack and batadvtpstop are only valid for tpvars in the BATADVTPSENDER role. When called with a BATADVTPRECEIVER role, it proceeds to read sender-only members that we...

UBUNTU-CVE-2026-52916

In the Linux kernel, the following vulnerability has been resolved: batman-adv: frag: disallow unicast fragment in fragment batadvfragskbbuffer is called by batadvbatmanskbrecv when a BATADVUNICASTFRAG packet is received. Once all fragments are collected and the packet is reassembled,...

UBUNTU-CVE-2026-52942

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...

SUSE-SU-2026:2607-1 Security update for the Linux Kernel (Live Patch 44 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.176 fixes various security issues The following security issues were fixed: - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache bsc1261640. - CVE-2026-31504: net: fix fanout UAF in packetrelease via NETDEVUP rac...

EUVD-2026-38712

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...

CVE-2026-52942

In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheader guards the MAC header access only with "skb-macheader != skb-networkheader", without checking skbmacheaderwasset. When the MAC...

CVE-2026-52940

The CVE-2026-52940 issue affects the Linux kernel tun driver. tun_put_user() allocates an on‑stack virtio_net_hdr_v1_hash_tunnel without zeroing, while virtio_net_hdr_tnl_from_skb() only initializes the first 10 bytes for non‑tunnel SKBs. This allows an unprivileged user to set the vnet header to...

EUVD-2026-38704

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tvlv: reject oversized TVLV packets batadvtvlvcontainerogmappend builds a TVLV packet section from the tvlv.containerlist. The total size of this section is computed by batadvtvlvcontainerlistsize, which sums the size...

PT-2026-51970

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read occurs during the copying of elements from a BPF MAP TYPE CGROUP STORAGE map to a per-CPU pcpu map when the value size is not aligned to 8 bytes. The pcpu init valu...

PT-2026-51984

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description An issue exists in the Linux kernel regarding the analysis of failure paths for ld abs and ld ind instructions within subprograms. These instructions are permitted in subprograms that ar...

PT-2026-51888

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the vsock/virtio implementation regarding MSG ZEROCOPY pinned-pages accounting. The function virtio transport init zcopy skb uses iter-count as the size argument for m...

PT-2026-51993

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A configuration naming issue exists in the BPF subsystem where the use of CONFIG CFI CLANG instead of the renamed CONFIG CFI causes code to be compiled out. This occurs because the optio...