Astra Linux – Vulnerability in Linux, Linux 5.10

A flaw involving a null pointer dereference was discovered in the Linux kernel’s UDF file system functionality. This flaw allows a malicious UDF image to trigger the udffilewriteiter function. A local user could exploit this flaw to crash the system. The flaw is present in the Linux kernel versio...

Astra Linux – Vulnerability in fly-wm

The vulnerability of the fly-kompmgr utility for the fly-wm window manager is related to the manipulation of the zero pointer. Exploiting this vulnerability allows an attacker to cause a service failure...

Astra Linux – Vulnerability in netcdf

A issue was discovered in libezxml.a in ezXML 0.8.6. The function ezxmlinternaldtd, when parsing a crafted XML file, performs incorrect memory handling, resulting in a NULL pointer being dereferenced while running strcmp on a NULL pointer...

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

In the Linux kernel, the following vulnerability has been resolved: rpmsg: glink: Added a check for kstrdup. Added a check on the return value of kstrdup, and return an error if it fails, in order to avoid NULL pointer dereferencing...

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

In the Linux kernel, the following vulnerabilities have been resolved: nilfs2: Fixing the lifetime of the sysfs interface The current nilfs2 sysfs support has issues with the timing of the creation and deletion of sysfs entries. This may lead to null pointer dereferences, use-after-free errors, a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mt76: mt7915: fixed NULL pointer dereferencing in mt7915getphymode Fixed the NULL pointer dereferencing in mt7915getphymode routine by adding an IBSS interface to the mt7915 driver. 101.137097 wlan0: Triggered a new scan to fi...

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: net: Fixed null-ptr-deref in socklockinitclassandname and rmmod. When I ran the reproduction steps and waited for a few seconds, I observed two LOCKDEP warnings: a warning immediately followed by a null-ptr-deref. Reproduction...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fixed null-ptr-deref in r5lFlushStripeToRaid The r5lFlushStripeToRaid function will check whether the list ‘flushingios’ is empty. It will then submit ‘flushbio’. However, r5llogFlushEndio clears the list first, a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Added a check for mgmtallocskb in mgmtdeviceconnected. Added a check on the return value of mgmtallocskb in mgmtdeviceconnected to prevent null pointer dereferencing...

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: net: The TOCTOU issue in skisreadable has been fixed. sk-skprot-sockisreadable is a valid function pointer when sk resides in a sockmap. After the last skpsockput call which usually occurs when a socket is removed from the sockma...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed the issue where dcc-f2fsissuediscard was not invalidated during the error path. Syzbot reports a NULL pointer dereference issue as follows: refcountadd include/linux/refcount.h:193 inline refcountinc...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null check was added for the setoutputgamma function pointer in the dcn30setoutputtransferfunc function. This commit adds a null check for the function pointer setoutputgamma in the dcn30setoutputtransferfunc...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix bridge mode operations when there are no VFs Currently, attempting to set the bridge mode attribute when numvfs=0 leads to a crash: bridge link set dev eth2 hwmode vepa 168.967392 BUG: kernel NULL pointer dereferenc...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: iouring: Fixed a null-ptr-deref in iotctxexitcb. Syzkaller reports a NULL deref bug as follows: BUG: KASAN: null-ptr-deref in iotctxexitcb+0x53/0xd3 Read of size 4 at address 0000000000000138 by task file1/1955 CPU: 1 PID: 195...

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: Wifi: carl9170 – Do not ping devices that have failed to load firmware. Syzkaller reports that 1 and 2 crashes occur due to attempts to ping devices that have failed to load firmware. Since such devices fail to pass the...

Astra Linux – Vulnerability in Apache2

A NULL pointer dereference in moddavlock in the Apache HTTP Server 2.4.66 and earlier versions may allow an attacker to crash the server with a malicious request. moddavlock is not used internally by moddav or moddavfs. The only known use-case for moddavlock was in moddavsvn from Apache Subversio...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Properly handles malformed BPFCORETYPEIDLOCAL relocation records. In the case of malformed relocation records of the BPFCORETYPEIDLOCAL type that reference a non-existent BTF type, the function bpfcorecalcreloinsn may cause ...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: net-sysfs: added a check to ensure netdevice is present before using speedshow. When disabling the netdevice or during system shutdown, a panic may occur when accessing the sysfs path, because the device has already been removed...

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: WireGuard: netlink: Access the device through ctx instead of peer. The previous commit fixed a bug that resulted in a NULL peer-device being dereferenced. In terms of performance, it is actually easier and faster to obtain 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: pstore/zone: Added a null pointer check to pszkmsgread. The kasprintf function returns a pointer to dynamically allocated memory, which may be NULL in case of failure. Ensure that the allocation was successful by checking the...