CVE-2026-80742 af_packet: Don't send zero-byte data in tpacket_snd().

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-2026-80742

CVE-2026-80742 affects the Linux kernel in the af_packet subsystem (net/packet/af_packet.c). When sending zero-byte packets via the TPACKET ring buffer on devices with no hard header (dev->hard_header_len == 0), tpacket_fill_skb() produces an skb with skb->len == 0 , which tpacket_snd() for...

EUVD-2026-70337

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733 net: remove WARN_ON_ONCE() from sk_mc_loop()

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

CVE-2026-80733

CVE-2026-80733 affects the Linux kernel 's sk_mc_loop() networking function. When called for non-INET sockets—such as AF_PACKET sockets sending packets over virtual devices like VRF or ipvlan —the function falls through its switch statement and triggers a spurious WARN_ON_ONCE(1) . Since non-INET...

PT-2026-84940

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where sending zero-byte packets via the TPACKET ring buffer on devices without a hard header where dev-hard header len is 0 can trigger a warning in t...

CVE-2026-80742: Undefined Security Weakness

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-2026-80733: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: remove WARNONONCE from skmcloop skmcloop can be called for sockets that are neither AFINET nor AFINET6 e.g. AFPACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan. In such case...

PT-2026-84931

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sk mc loop function where it can be called for sockets that are neither AF INET nor AF INET6, such as AF PACKET sockets used when sending packets via raw/packet...

SUSE CVE-2026-80725

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

AZL-98223 CVE-2026-80725 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

CVE-2026-80725

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

UBUNTU-CVE-2026-80725

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

CVE-2026-80725 net: gro: properly validate BIG TCP aggregation criteria

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

PT-2026-83418

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0 Description An issue exists in the Generic Receive Offload GRO implementation where BIG TCP aggregation criteria are not properly validated. When aggregating packets exceeding 64KB, the skb gro receive functi...

CVE-2026-80725: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted for plain IPv4 TCP and plain IPv6 TCP with sufficient MAC header room ...

Linux Distros Unpatched Vulnerability : CVE-2026-80725

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: gro: properly validate BIG TCP aggregation criteria When GRO attempts to aggregate packets beyond GROLEGACYMAXSIZE 64KB, BIG TCP should only be permitted f...

SUSE CVE-2026-72019

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098990)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098990 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nflog: validate MAC header was set before dumping it The fallback path of dumpmacheade...

SUSE CVE-2026-74668

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in TXRING send path tpacketsnd reads dev-hardheaderlen independently for skb allocation and header construction in tpacketfillskb. Concurrent netdevice reconfiguration can therefore make the...