Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: i2c: Fixed a skb memory leak in the receive path. When midev-allowrx is set to false, the newly allocated skb is not consumed by netifrx. It is necessary to free the skb directly...

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: Bonding: A net pointer to skbflowdissect must be provided. After the code “net: plumb network namespace into skbflowdissect”, we need to provide a net pointer to skbflowdissect, either through skb-dev, skb-sk, or a user-provided...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Ethernet: Aeroflex – Fix for a potential skb leak in grethinitrings The grethinitrings function does not free the newly allocated skb when dmamappingerror returns an error. Therefore, adding devkfreeskb is necessary to fix this...

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...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9khtc: Use skbsetlength to reset urb before resubmitting it. Syzbot points out that skbtrim has a sanity check on the existing length of the skb; this length might not be initialized in some error-prone situations. The...

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

In the Linux kernel, the following vulnerability has been resolved: llc: Do not use skbget before devqueuexmit. The syzbot exploit can cause hosts to crash, especially when using llc and devices that do not support IFFTXSKBSHARING. In this case, the e1000 driver calls ethskbpad, where the skb is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tls: Make sure to abort the stream if the headers are invalid. Normally, we wait for the socket to buffer up the entire record before processing it. However, if the socket has a very small buffer, we read out the data sooner to...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: A bug in accessing the uninit variable was fixed in qrtrtxresume. Syzbot reported the bug as follows: ===================================================== Bug: KMSAN: Access to the uninitvalue variable in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: e100: A potential use of memory after freeing it has been fixed in e100xmitprepare. In e100xmitprepare, if we cannot map the skb, then -ENOMEM is returned. As a result, e100xmitframe will return NETDEVTXBUSY, and the upper layer...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: octeonep: Added handling of SKB allocation failures in octepoqprocessrx. The buildskb function returns NULL in case of a memory allocation failure. Therefore, this behavior should be handled within octepoqprocessrx to prevent NUL...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Staging: gdm724x: fixed the use of a variable after it is freed in gdmlterx. The netifrxni function frees the skb, so we cannot dereference it to save the skb-len...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, cpumap: Handle skb as well when cleaning up ptrring. The following warning was reported when running xdpredirectcpu with both skbmode and stressmode enabled: ------------ Cut here ------------ Incorrect XDP memory type...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A flaw was discovered in the Linux kernel’s networking code. A use-after-free occurred in the way the schsfb enqueue function utilized the socket buffer SKB cb field after the same SKB had been enqueued and freed into a child qdisc. This flaw allows a local, unprivileged user to cause a system...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath9k – Avoid referencing uninitialized memory in ath9kwmictrlrx. For the same reasons described in commit b383e8abed41 “Wifi: ath9k – Avoid uninitialized memory reading in ath9khtcrxmsg”, ath9khtcrxmsg should validate the...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: can: dev: canrestart: fix use after free bug After calling netifrxniskb, dereferencing skb is unsafe. In particular, the canframe field, which aliases skb memory, is accessed after the netifrxni function in: stats-rxbytes +=...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: actct: fix skb leak and crash on ooo frags actct adds skb-users before defragmentation. If frags arrive in order, the reference of the last frag is reset in inetfragreasmprepare, which is a straightforward process...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gro: fixed ownership transfer If packets are processed with a fraglist, they may be segmented later on and continue their journey within the stack. In skbSegmentlist, these skbs can be reused as is. This is a problem because thei...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: hisilicon: Fixed a potential use-after-free in hix5hd2rx. The skb is passed to npapigroreceive, which may free it. After calling this function, dereferencing the skb may trigger a use-after-free...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053228)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053228 advisory. In the Linux kernel, the following vulnerability has been resolved: phonet/pep: fix racy skbqueueempty use The receive queues are protected by their respective...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the net subsystem, a leak in the skbtstamptx function was fixed. Commit 50749f2dd685 “tcp/udp: Fixed memory leaks in sk and zerocopy skbs during TX timestamping” added a call to skborphanfragsrx, to fix leaks related to zeroco...