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

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed a deadlock issue when converting an inline directory in nojournal mode. In nojournal mode, ext4finishconvertinlinedir can cause a self-deadlock by calling ext4handledirtydirblock after having already taken the...

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: Firmware: mesonsm: A fix was made to avoid potential NULL pointer dereferencing. The ofmatchdevice function may fail and return a NULL pointer. This issue was addressed by checking the return value of ofmatchdevice...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fixed the leak from the dev tracker. At the stage of direction checks, the netdev reference tracker is already initialized, but it is released with the wrong put call...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Added a check for a valid ‘madagent’ pointer. When unregistering an MAD agent, the srpt module performs a non-null check on the ‘madagent’ pointer before invoking ibunregistermadagent. This check can fail if the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: 8250bcm7271: The leak in brcmuartprobe has been fixed. Matching reports: drivers/tty/serial/8250/8250bcm7271.c: Line 1120 of brcmuartprobe, warning: “‘baudmuxclk’ from clkprepareenable was not released”. The issue has bee...

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: rcuscale: Move rcuscalewriter’s scheduletimeoutuninterruptible function to idle. The rcuscale.holdoff module parameter can be used to delay the start of rcuscalewriter’s kthread. However, the hung-task timeout will trigger when t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: Avoid leaking ctx on the error path of dsatag8021qregister If dsatag8021qsetup fails, for example due to the device’s inability to install a VLAN, the tag8021q context of the switch will be leaked. Make sure...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: jbd2: Added a miss release buffer head in fcdoonepass. In fcdoonepass, a miss release buffer head is added after use, which can lead to a reference count leak...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: The page extent mapping was set after the readfolio operation in relocateonepage. One of the CI runs triggered the following panic: Assertion failed: PagePrivatepage && page-private, in fs/btrfs/subpage.c:229 ----------...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed an issue related toracy under the cocurrent smb2 tree disconnect scenario. There is also a UAF issue under the cocurrent smb2 tree disconnect scenario. This patch introduces TREECONNEXPIRE flags for tcon to avoid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: fixed the issue of using a blob after it was freed. We are not allowed to return an error at this point. Looking at the code, it seems that ret is always 0 at this point, but that’s not the case. c t =...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: F2FS: fixed potential corruption when moving a directory. F2FS also has the same issue in ext4rename, which causes a crash, as revealed by xfstests/generic/707. See also commit 0813299c586b “ext4: Fix possible corruption when...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Disabling preemption in bpfperfeventoutput The nesting protection in bpfperfeventoutput relies on disabled preemption, which is guaranteed for kprobes and tracepoints. However, bpfperfeventoutput can also be called from the...

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

In the Linux kernel, the following vulnerability has been resolved: fbdev: imsttfb: fixed a resource leak in the probe. I have rewritten the error handling code, but the issue remains that if initimstt fails, we need to call iounmappar-cmap regs...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fixed a null dereference issue in the parse of dev addr operation. A logical error was addressed, which could lead to a null dereference if the mode is set incorrectly for the given addr type...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: a race between writeprotect and exitmmap has been fixed. A race may occur when a process exits; its virtual memory addresses are removed by exitmmap, and at the same time, userfaultfdwriteprotect is called. This race...

Astra Linux – Vulnerability in CGal

There are multiple code execution vulnerabilities in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. A specially crafted malformed file can lead to an out-of-bounds read and type confusion, which could result in code execution. An attacker can provide malicious input to trigger...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fixed a credential leak in nfs4discovertrunking...

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: skbuff: In skbSegment, call zero-copy functions before using skbuff fragments. The commit bf5c25d60861 added the call to zero-copy functions in skbSegment. This change introduced a bug in skbSegment, as skborphanfrags may...

Astra Linux – Vulnerability in dcmtk

DCMTK’s version 3.6.6 does not handle memory release properly. The memory allocated for storing all file information is stored in a global variable called LST, and this memory is not released properly. Making specific requests to the dcmqrdb program can lead to a memory leak. An attacker can use...