Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from a resource leak caused by MPTCP's failure to clean up a subflow when a socket creation fails...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from unfreezing skb memory, which could lead to a memory leak...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the espintcp driver not releasing the skb in the wrong path...

PT-2025-28356

Name of the Vulnerable Software and Affected Versions: Linux kernel versions 6.9 and earlier, including versions prior to 6.1.143, 6.6.96, 6.12.36, and 6.15.5. Description: The Linux kernel contains a use-after-free vulnerability in the af unix module, specifically within the unix stream read...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: UDP: Handling race conditions between UDP socket address changes and rehashing If a UDP socket changes its local address while it is receiving datagrams, as a result of the connect function, there is a period during which a looku...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: usbnet: Fix for NPE during rxcomplete. There is a missing validation of usbnetgoingaway in the critical path. The usbsubmiturb function lacks this validation, while usbnetqueueskb includes this check. This inconsistency creates a...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: mcast: Extended RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. We have extended RCU protection so that we can safely retrieve the net pointer and avoid a potential UAF...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Net: Ethernet: ti: am65-cpsw: fixed a memory leak in certain XDP scenarios. If the XDP program does not result in XDPPASS, then we leak the memory allocated by am65cpswbuildskb. It is pointless to allocate SKB memory before runni...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: can: rockchip: rkcanfdhandlerxfifooverflowint: Bail out if skb cannot be allocated. The NULL pointer check in rkcanfdhandlerxfifooverflowint has been fixed to also bail out if skb cannot be allocated...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: Allow for small head cache usage with large MAXSKBFRAGS values. Sabrina reported the following error: WARNING: CPU: 0 PID: 1 at net/core/dev.c:6935 netifnapiaddweightlocked+0x8f2/0xba0 Modules linked in: CPU: 0 UID: 0 PID...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: udp: Fixed multiple wraparounds of sk-skrmemalloc. The function udpenqueuescheduleskb has the following condition: c if atomicread&sk-skrmemalloc sk-skrcvbuf goto drop; sk-skrcvbuf is initialized with net.core.rmemdefault, and ca...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netfilter: socket: Lookup orig tuple for IPv6 SNAT The nfsklookupslowv4 function performs the conntrack lookup for IPv4 packets in order to restore the original 5-tuple in case of SNAT, so that the correct socket if any can be...

kernel: ndisc: use RCU protection in ndisc_alloc_skb()

A vulnerability was found in the Linux kernel's IPv6 Neighbor Discovery NDISC subsystem, which manages network neighbor information. The issue arises from improper synchronization mechanisms when allocating socket buffers skbuff in the ndiscallocskb function. Specifically, the function can be...

OpenSSL security vulnerabilities

OpenSSL is an open source general-purpose cryptographic library capable of implementing the Secure Sockets Layer SSLv2/v3 and Secure Transport Layer TLSv1 protocols from the OpenSSL team. It supports a variety of cryptographic algorithms, including symmetric ciphers, hashing algorithms, secure...

PT-2025-27965

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A issue in the Linux kernel has been resolved, related to the Asynchronous Transfer Mode ATM protocol. The problem occurs when the copy from iter full function fails in vcc sendmsg,...

PT-2025-26948

Name of the Vulnerable Software and Affected Versions: cloud-init versions through 25.1.2 Description: The issue concerns the systemd socket unit cloud-init-hotplugd.socket in cloud-init, which has a default SocketMode that grants 0666 permissions, making it world-writable. This affects the...

Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-994)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-994 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: do proper folio cleanup when cowfilerange failed CVE-2024-57976 In the Linux kernel, the following vulnerability has...

perl-fcgi: FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library

A flaw was found in the FCGI library. In affected versions, specially crafted nameLen or valueLen values in data sent to the IPC socket may result in a heap-based buffer overflow, which can cause an application crash or other undefined behavior. This occurs in ReadParams in fcgiapp.c...

kernel: inet: inet_defrag: prevent sk release while still in use

In the Linux kernel, the following vulnerability has been resolved: inet: inetdefrag: prevent sk release while still in use iplocalout and other functions can pass skb-sk as function argument. If the skb is a fragment and reassembly happens before such function call returns, the sk must not be...

K000151779: Node.js vulnerabilities CVE-2025-23083 and CVE-2025-23085

Security Advisory Description CVE-2025-23083 With the aid of the diagnosticschannel utility, an event can be hooked into whenever a worker thread is created. This is not limited only to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be...