kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...

kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable

A flaw was found in the Linux kernel's netfilter synproxy module. When handling TCP timestamp options, a stale pointer can be used after memory reallocation. This can result in memory corruption, where data is written to a freed memory area, or lead to packets being sent with an incorrect checksu...

AZL-106275 CVE-2026-98239 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

CVE-2026-98239

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

UBUNTU-CVE-2026-98239

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

CVE-2026-98239

The Linux kernel contains a use-after-free vulnerability in the lan743x network driver. The issue occurs in lan743x_rx_process_buffer() when a packet spans multiple receive buffers; specifically, lan743x_rx_trim_skb() frees fragment skb metadata on the last descriptor, but the checksum-success pa...

CVE-2026-98239 net: lan743x: fix RX checksum use-after-free

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

EUVD-2026-93167

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

CVE-2026-98239 net: lan743x: fix RX checksum use-after-free

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

PT-2026-106568

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free write occurs in the lan743x driver when a packet spans more than one receive buffer. The function lan743x rx process buffer adds non-first receive buffers to the head...

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: arm64: csum: Fixed an issue with OoB access in the IP checksum code for negative lengths. Although the commit c2c24edb1d9c “arm64: csum: Fix pathological zero-length calls” added an early return for zero-length inputs, syzkaller...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync. It allows a server to enumerate the contents of an arbitrary file from the client’s machine. This issue occurs when files are being copied from the client to the server. During this process, the rsync server sends checksums of local data to the client for compariso...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A issue was discovered in the Linux kernel before version 6.3.3. There is an out-of-bounds read in the crc16 function in lib/crc16.c when called from fs/ext4/super.c, because ext4groupdesccsum does not properly check an offset. NOTE: This issue is disputed by third parties, as the kernel is not...

Astra Linux – Vulnerability in rsync

A flaw was discovered in rsync that can be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length s2length, causing a comparison between a checksum and uninitialized memory, and resulting in the leakage of one byte of uninitialized stack data ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Map EBADMSG to nfserrio to avoid warnings. Ext4 will throw -EBADMSG during ext4readdir when a checksum error occurs, resulting in the following warning. Fix this by mapping EBADMSG to nfserrio. nfsdbufferedreaddir...

Astra Linux – Vulnerability in Wireshark

In Wireshark versions 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash. This issue was addressed in the epan/dissectors/packet-tcp.c file by changing the handling of the invalid 0xFFFF checksum...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Missing check for virtio Two missing checks in virtionethdrtoskb allowed syzbot to crash kernels again. 1. After the skbsegment function, the buffer may become non-linear nrfrags != 0. However, since the SKBTXSHAREDFRAG...

K000163535: Go vulnerability CVE-2026-42501

Security Advisory Description A malicious module proxy can exploit a flaw in the go command's validation of module checksums to bypass checksum database validation. This vulnerability affects any user using an untrusted module proxy GOMODPROXY or checksum database GOSUMDB. A malicious module prox...

CVE-2026-79900

The boks_ksllogsd component is vulnerable to a heap overflow during KSL checksum initialization. The issue occurs because affected releases verify that OpenSSL recognizes a digest name provided in the MD field of an authenticated KSL start message but fail to validate that the name fits within a ...

CVE-2026-79900 Heap overflow in KSL checksum initialization

boksksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can...