CVE-2026-74597

A flaw was found in the Linux kernel's IPv6 Internet Protocol version 6 tunnel error handling. A remote attacker could send a specially crafted IPv6 ICMP Internet Control Message Protocol error packet with a malformed inner destination-options header. This could lead to memory corruption within t...

Astra Linux – Vulnerability in Linux 5.10, Linux

The fix for XSA-423 added logic to the Linux’ netback driver to handle cases where a packet is split by a frontend, resulting in not all of the headers being together in one piece. Unfortunately, the introduced logic did not account for the extreme case where the entire packet is split into as ma...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fixed the issue where the memory of skmsg was uncharged twice. If tcpbpfsendmsg is running during a cleanup operation, psock may be freed. c tcpbpfsendmsg tcpbpfsendverdict skmsgreturn tcpbpfsendmsgredir...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed a UAF Use-After-Free issue caused by a race between btftrygetmodule and loadmodule. While working on code to populate the BTF IDs for modules during their initialization, I noticed that by the time the initialization...

Astra Linux – Vulnerability in Wireshark

The SPRT dissector crash in Wireshark versions 4.2.0 to 4.0.5, and 4.0.0 to 4.0.15 allows denial of service through packet injection or malicious capture files...

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

In the Linux kernel, the following vulnerabilities have been resolved: l2tp: The correct message length must be passed to ip6.AppendData. l2tpip6sendmsg needs to avoid accounting for the transport header twice when splicing more data into an already partially-occupied skbuff. To address this issu...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: Fixed the issue where load values were being altered in sk-skstamp during sockrecvcmsgs. KCSAN identified a data race in sockrecvcmsgs, where the read access to sk-skstamp requires a READONCE operation. BUG: KCSAN: Data...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftct: Skip the evaluation of expectations for confirmed conntrack entries. The nftctexpectobjeval function calls nfctextadd for an confirmed conntrack entry. However, nfctextadd can only be called when...

Astra Linux – Vulnerability in Wireshark

Large loops in multiple protocol dissectors in Wireshark versions 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allow denial of service via packet injection or crafted capture files...

Astra Linux – Vulnerability in Linux

In kernel/bpf/verifier.c in the Linux kernel before version 5.12.13, a branch prediction can be mispredicted e.g., due to type confusion, allowing a non-privileged BPF program to access arbitrary memory locations through a side-channel attack, known as CID-9183671af6db...

Astra Linux – Vulnerability in Qemu

QEMU 5.0.0 has a use-after-free issue in the hw/usb/hcd-xhci.c file, as the return value of usbpacketmap is not checked...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Wifi: mwifiex: Fixed out-of-bounds access to the skb-data buffer during OOB operations and integer underflow when processing RX packets. Ensure that functions such as mwifiexprocessmgmtpacket, mwifiexprocessstarxpacket,...

Astra Linux – Vulnerability in Wireshark

The XRA dissector infinite loop in Wireshark versions 4.0.0 to 4.0.5, and 3.6.0 to 3.6.13 allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed incorrect reg type conversion in releasereference Some helper functions will allocate memory. To avoid memory leaks, the verifier requires the eBPF program to release this memory by calling the corresponding helper...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Memory leaks have been fixed in checkfunccall. kmemleak reports this issue: Unreferenced object 0xffff88817139d000 size 2048: comm "testprogs", pid 33246, jiffies 4307381979 age 45851.820s Hex dump first 32 bytes: 01 00 0...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed a crash that occurred due to out-of-bounds access to reg2btfids. When the commit e6ac2450d6de “bpf: Support bpf programs that call kernel functions” added support for kfunc, it defined reg2btfids as a convenient way...

Astra Linux – Vulnerability in libbpf

A vulnerability was discovered in the Linux kernel. It has been classified as problematic. This issue affects the findprogbysecinsn function in the tools/lib/bpf/libbpf.c file of the BPF component. The vulnerability results in a null pointer derefrence error. It is recommended that a patch be...

Astra Linux – Vulnerability in Wireshark

A crash in the DNP dissector in Wireshark versions 3.4.0 to 3.4.6, as well as 3.2.0 to 3.2.14, allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability in grub2

Integer underflow in grubnetrecvip4packets; A malicious IP packet can cause an integer underflow in the grubnetrecvip4packets function, affecting the rsm-totallen value. Under certain circumstances, the totallen value may wrap around to a small integer number, which will be used in memory...

Astra Linux – Vulnerability in Wireshark

A crash in the PVFS protocol dissector in Wireshark versions 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows for denial of service through packet injection or malicious capture files...