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: mwifiex: avoided possible dereferencing of a NULL skb pointer. In ‘mwifiexhandleuaprxforward’, always check the value returned by ‘skbcopy’ to avoid potential NULL pointer dereferencing in ‘mwifiexuapqueuebridgedpkt’. If...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a race condition when detecting delalloc ranges during fiemap For fiemap, we recently stopped locking the target extent range for the entire duration of the fiemap call, in order to avoid a deadlock in a scenario whe...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: The recycle buffer was handled in cases where the Rx queue was full. A missing call to xskbufffree was added when xskrcvzc failed to produce a descriptor for the XSK Rx queue...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: sched: flower: Protect flwalk by using rcu. The patch that refactored flwalk to use idrforeachentrycontinueul also removed the rcu protection for individual filters. This caused a use-after-free when the filter was deleted...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: inet: Sk-skrxdst was converted to RCU rules. The syzbot reported various issues related to early demux processing. One of these issues is included in this changelog 1. Sk-skrxdst uses RCU protection without proper documentatio...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfs: The “copy-to-cache” mechanism has been fixed so that it performs collection using Ceph+FSCache. The “copy-to-cache” mechanism used by Ceph with local caching creates a new request to write data that was just read into the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: fixed a crash in setmeshsync and setmeshcomplete. There is a bug: KASAN: a stack-out-of-bounds issue in setmeshsync, caused by memcpy from a poorly declared on-stack flexible array. Another crash occurs in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: raw: Fixed NULL dereference in rawgetnext. Dae R. Jeong reported a NULL dereference in rawgetnext. It seems that the reproduction test was running these sequences in parallel, so one thread was iterating over a socket that was...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: Fixed a memory leak in XDPDROP for the non-zero-copy mode. Page recycling was removed from the XDPDROP path in emacrunxdp to avoid conflicts with the AFXDP zero-copy mode, which uses xskbufffree instead...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: filemap: Handle sibling entries in filemapgetreadbatch. If a read race occurs with an invalidation followed by another read, it is possible for a folio to be replaced with a higher-order folio. If this happens, we will see a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fixed reference count leaks in nfs42proccopynotify. You don’t often receive emails from [email protected]. Learn why this is important at http://aka.ms/LearnAboutSenderIdentification. The reference counting issue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix potential AB/BA lock issue with buffermutex and mmaplock The syzbot tool detected a potential deadlock between the runtime-buffermutex and the mm-mmaplock. This issue arose due to the recent fix related to racy...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: State corruption has been prevented in fpurestoresig. The non-compacted slowpath uses copyfromuser to copy the entire user buffer into the kernel buffer, verbatim. This means that the kernel buffer may now contain entire...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: wifi: rtw88: use a work to update the rate to avoid RCU warnings. The ieee80211ops::starcupdate function must be atomic, because ieee80211chanbwchange holds a rcuread lock while calling drvstarcupdate. Therefore, a work must b...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: added a missing boundary check in vmaccess A missing bounds check in vmaccess can lead to an out-of-bounds read or write in the adjacent memory area. This occurs because the len attribute is not validated before the...

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

In 64-bit versions of the Linux kernel, Copyfromuser does not implement uaccessbeginnospec, which allows a user to bypass the “accessok” check and pass a kernel pointer to copyfromuser. This would enable an attacker to leak sensitive information. We recommend upgrading beyond commit...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed an out-of-bounds write operation through a compressed name in rdatacopy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, an ongoing Unbound installation cannot be remotely or locally exploited...

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: x86/mm/pat: fixed the handling of VMPAT in COW mappings. The handling of VMPAT does not work correctly in COW mappings: the first PTE or, in fact, all PTEs can be replaced during write faults, causing them to point to anonymou...

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

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fixed a memory leak when insertoldidx failed. The following process will cause a memory leak for the copied znode: dirtycowznode zn = copyznodec, znode; err = insertoldidxc, zbr-lnum, zbr-offs; if unlikelyerr return...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm: Prevent drmcopyfield from attempting to copy a NULL pointer. There are some fields in the struct drmdriver structure that are required by drivers. Since drmcopyfield attempts to copy these fields to user-space via...