UBUNTU-CVE-2026-45929

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix possible use-after-free in ovpnnetxmit When building the skblist in ovpnnetxmit, skbsharecheck will free the original skb if it is shared. The current implementation continues to use the stale skb pointer for subsequent...

EUVD-2026-32485

In the Linux kernel, the following vulnerability has been resolved: net: strparser: fix skbhead leak in strpabortstrp When the stream parser is aborted, for example after a message assembly timeout, it can still hold a reference to a partially assembled message in strp-skbhead. That skb is not...

CVE-2026-46102

The CVE-2026-46102 issue affects the Linux kernel network stream parser (net: strparser). When the stream parser is aborted (e.g., after a message assembly timeout), the partially assembled message referenced by strp->skb_head is not released in strp_abort_strp(), causing a memory leak that co...

net: skbuff: preserve shared-frag marker during coalescing

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net: skbuff: propagate shared-frag marker through frag-transfer helpers

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PT-2026-43865

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the rxrpc component. If the skb unshare function fails to unshare a packet due to an allocation failure within rxrpc input packet, the skb pointer in...

PT-2026-43753

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the prototype for the bpf xdp store bytes function is incorrect. The verifier incorrectly expects the third argument to be of type ARG PTR TO...

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 possibility of setting the skb pointer to null when rxrpc fails to unshare a skb, potentially leadi...

PT-2026-43796

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the ovpn net xmit function. When building the skb list, the skb share check function frees the original skb socket buffer if it is shared. The system the...

PT-2026-43970

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the stream parser when it is aborted, such as after a message assembly timeout. The strp abort strp function fails to release the reference to a partially assembl...

PT-2026-51758

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel due to a missing zerocopy reference in the pskb carve inside header and pskb carve inside nonlinear functions. Both functions copy the s...

Important: kernel-livepatch-5.10.252-250.1005

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through pskbcopy CVE-2026-46300 Affected Packages: kernel-livepatch-5.10.252-250.1005 Issue Correction: Please ensure you have live patching enabled. Run yum update...

Important: kernel-livepatch-6.18.20-20.229

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through pskbcopy CVE-2026-46300 Affected Packages: kernel-livepatch-6.18.20-20.229 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-5.10.251-248.983

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through pskbcopy CVE-2026-46300 Affected Packages: kernel-livepatch-5.10.251-248.983 Issue Correction: Please ensure you have live patching enabled. Run yum update...

SUSE CVE-2025-39703

In the Linux kernel, the following vulnerability has been resolved: net, hsr: reject HSR frame if skb can't hold tag Receiving HSR frame with insufficient space to hold HSR tag in the skb can result in a crash kernel BUG: 45.390915 skbuff: skbunderpanic: text:ffffffff86f32cac len:26 put:14...

EUVD-2026-31535

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skbtrycoalesce can attach paged frags from @from to @to. If @from has SKBFLSHAREDFRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backe...

CVE-2026-46300

The CVE-2026-46300 issue affects the Linux kernel's net: skbuff code: skb_try_coalesce() can transfer paged frags from one skb to another while losing the SKBFL_SHARED_FRAG marker, breaking the invariant relied on by ESP decryption logic. This can allow an in-place decrypt path to operate on page...

EUVD-2026-31536

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 frags from source to...

kernel: net: skbuff: propagate shared-frag marker through frag-transfer helpers

A flaw was found in the Linux kernel's networking skbuff component. When skbtrycoalesce attaches paged fragments, it can lose the SKBFLSHAREDFRAG marker. This can lead to the Encapsulating Security Payload ESP input decrypting data in place over page-cache backed fragments, potentially resulting ...

kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...