Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: EDAC/bluefield: Fix potential integer overflow CVE-2024-53161 kernel: wifi: mac80211: Discard Beacon frames to non-broadcast addre...

RHEL 8 : kernel (RHSA-2026:67468)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67468 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: EDAC/bluefield: Fix potential...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Check if there is a station first in the client probe. When probing a client, first check if one exists, and then check the channel context. Otherwise, a warning can easily be triggered by probing when the AP hasn...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: sdata can be NULL during AMPDU start The ieee80211txbasessionhandlestart function may return NULL for sdata when a deauthentication process is ongoing. Here is a trace that illustrates the race condition involving...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211: Fixed a race condition when enabling fast-xmit. fast-xmit must only be enabled after the station has been uploaded to the driver. Otherwise, it might pass the yet-to-be-uploaded station through drvtx calls to the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211 – Fix for potential “sta-link” leaks When a station is allocated, links are added but are not yet marked as valid e.g., during connection to an AP or MLD. We might remove the station without actually marking the...

Astra Linux – Vulnerability in Linux 5.10, Linux

A use-after-free in the mac80211 stack, during the parsing of a multi-BSSID element in the Linux kernel versions 5.2 through 5.19.x before 5.19.16, could be exploited by attackers who have access to injecting WLAN frames. This exploitation could lead to kernel crashes and potentially allow them t...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: A NULL dereference occurred in meshmatcheslocal. meshmatcheslocal unconditionally dereferes ie-meshconfig to compare mesh configuration parameters. When called from meshrxcsaframe, the parsed action-frame elements...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211: Fixed a use-after-free in the chanctx code. In ieee80211vifusereservedcontext, when there’s an old context and the replacestate of the new context is set to IEEE80211CHANCTXREPLACENONE, the old context is freed in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Do not use the rate mask for off-channel TX as well. Similar to the commit ab9177d83c04 “wifi: mac80211: Do not use the rate mask for scanning”, ignore incorrect settings to avoid the “No supported rate” warning...

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: wifi: mac80211: Do not pass a stopped vif to the driver in .gettxpower. Avoid potentially crashing the driver due to uninitialized private data...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211 – Increase scanieslen for S1G. Currently, the S1G capability element is not taken into consideration when calculating scanieslen, which leads to a buffer length validation failure in the ieee80211prephwscan functio...

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

In the Linux kernel, the following vulnerability has been resolved: Wifi: mac80211 – Fix invalid drvstaprercuRemove calls for non-uploaded stations. This issue prevents potential data corruption issues caused by uninitialized driver-related private data structures...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211: fixed a use-after-free in CCMP/GCMP RX. When PN checking is performed in mac80211, for fragmentation purposes, we need to copy the PN into the RX struct so that it can be used later for comparison. This is reflected in...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fixed the handling of late beacon hrtimer events. Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our current handling of hrtimer events is incorrect. If the timer fires late—for example, du...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mac80211: The limit on vht mcs/nss in ieee80211parsetxradiotap has been adjusted. The maximum values of vht mcs and nss in ieee80211parsetxradiotap routine have been limited to fix the following warning reported by syzbot:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211: fixed the issue of locking in the ieee80211startap error path. We need to hold the local-mtx to release the channel context; this is even encoded in the lockdepassertheld function. Fix this issue...

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

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix potential key use-after-free When ieee80211gtkrekeyadd is called, and ieee80211gtkrekeyadd returns 0 due to KRACK protection identical key reinstall, ieee80211gtkrekeyadd will still return a pointer to the key...

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

Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel versions 5.1 through 5.19.x, prior to 5.19.16, could be exploited by local attackers those capable of injecting WLAN frames to trigger use-after-free conditions, potentially allowing them to execute...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mac80211: Verify that the extended element ID is present. Before attempting to parse an extended element, ensure that the extended element ID is present...