35 matches found
CVE-2026-74406
In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlangropreparereceive. udptunnelsockrelease could set sk-skuserdata to NULL while vxlangropreparereceive is running. Let's check if rcudereferenceskuserdata is NULL after skbgroremcsuminit...
EUVD-2026-59553
In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlangropreparereceive. udptunnelsockrelease could set sk-skuserdata to NULL while vxlangropreparereceive is running. Let's check if rcudereferenceskuserdata is NULL after skbgroremcsuminit...
CVE-2026-74406 vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlangropreparereceive. udptunnelsockrelease could set sk-skuserdata to NULL while vxlangropreparereceive is running. Let's check if rcudereferenceskuserdata is NULL after skbgroremcsuminit...
SUSE-SU-2026:22278-1 Security update for the Linux Kernel (Live Patch 2 for SUSE Linux Enterprise 16)
This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.7.1 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...
CVE-2026-53235
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
CVE-2026-53235
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
UBUNTU-CVE-2026-53235
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
CVE-2026-53235
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
CVE-2026-53235 net: add pskb_may_pull() to skb_gro_receive_list()
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
EUVD-2026-39326
In the Linux kernel, the following vulnerability has been resolved: net: add pskbmaypull to skbgroreceivelist skbgroreceivelist calls skbpullskb, skbgrooffsetskb without first ensuring the data is in the linear area via pskbmaypull. When the skb arrives via napigrofrags, skbheadlen can be 0 all...
kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs
A flaw was found in the Linux kernel's Generic Receive Offload GRO networking subsystem. This vulnerability occurs when skbgroreceive attempts to merge zerocopy socket buffers skbs without properly managing page reference counts, specifically when the SKBFLMANAGEDFRAGREFS flag is set. An attacker...
Linux Distros Unpatched Vulnerability : CVE-2026-46323
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skbgroreceive can currently copy frags between the source a...
CVE-2026-46323
In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skbgroreceive can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFLMANAGEDFRAGREFS flag. When SKBFLMANAGEDFRAGREFS is set, the...
Linux kernel 安全漏洞
The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the function skbgroreceive, which does not check the zero-copy status during the copy of frags,...
CVE-2026-46300 net: skbuff: preserve shared-frag marker during coalescing
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...
CVE-2026-43503 net: skbuff: propagate shared-frag marker through frag-transfer helpers
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...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: gro: fixed ownership transfer If packets are received using GRO, they may be segmented later on and continue their journey within the stack. In skbSegmentlist, these segments can be reused as they are. This is a problem because...
Astra Linux – Vulnerability in Linux 5.10, Linux
In the Linux kernel, the following vulnerability has been resolved: net: hisilicon: Fixed potential use-after-free in hisifemacrx The skb object is passed to napigroreceive, which may free it. After calling this function, dereferencing the skb object may trigger a use-after-free...