Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098763)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098763 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098875)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098875 advisory. In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warnin...

CVE-2026-72442

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: fix and simplify IP6IP6 tunnel handling Fix nfflowip6tunnelproto to use pskbmaypull instead of skbheaderpointer to ensure the outer IPv6 header is in the skb headroom, which is required for subsequent packet...

CVE-2026-72442 netfilter: flowtable: fix and simplify IP6IP6 tunnel handling

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: fix and simplify IP6IP6 tunnel handling Fix nfflowip6tunnelproto to use pskbmaypull instead of skbheaderpointer to ensure the outer IPv6 header is in the skb headroom, which is required for subsequent packet...

CVE-2026-72442: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: fix and simplify IP6IP6 tunnel handling Fix nfflowip6tunnelproto to use pskbmaypull instead of skbheaderpointer to ensure the outer IPv6 header is in the skb headroom, which is required for subsequent packet...

CVE-2026-68144 phonet: pep: fix use-after-free in pep_get_sb()

In the Linux kernel, the following vulnerability has been resolved: phonet: pep: fix use-after-free in pepgetsb pepgetsb doesn't consider that pskbmaypull might have relocated the skb data, and continue to access the older pointer, causing UAF. Reproduced under KASAN: BUG: KASAN:...

AZL-90438 CVE-2026-53091 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdiscpktlensegsinit Most ndostartxmit methods expects headers of gso packets to be already in skb-head. net/core/tso.c users are particularly at risk, because tsobuildhdr does a memcpyhdr, skb-data, hdrlen;...

AZL-85359 CVE-2026-43036 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1. gsofeaturescheck reads iph-fragoff to decide whether to clear mangleidfeatures...

AZL-77658 CVE-2026-23204 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the insufficient validation provided by the clsu32 classifier using the skbheaderpointer function,...

DEBIAN-CVE-2023-53433

In the Linux kernel, the following vulnerability has been resolved: net: add vlangetprotocolanddepth helper Before blamed commit, pskbmaypull was used instead of skbheaderpointer in vlangetprotocol and friends. Few callers depended on skb-head being populated with MAC header, syzbot caught one of...

CVE-2021-47397

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

CVE-2021-47397 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

CVE-2021-47397 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

CVE-2021-47397: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

UVI-2021-1001721 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

sctp: break out if skbheaderpointer returns NULL in sctprcvootb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.14.10 by commit...

GSD-2021-1001647 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

sctp: break out if skbheaderpointer returns NULL in sctprcvootb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.71 by commit...

GSD-2021-1001560 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

sctp: break out if skbheaderpointer returns NULL in sctprcvootb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.209 by commit...

UVI-2021-1001534 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

sctp: break out if skbheaderpointer returns NULL in sctprcvootb This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.249 by commit...