Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed a use-after-free in ext4orphancleanup. I identified the issue as follows: BUG: KASAN: Use-after-free in listaddvalid+0x28/0x1a0. Read of size 8 at address ffff88814b13f378 by task mount/710. CPU: 1 PID: 710 Comm:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/sti: Avoid potential dereferencing of error pointers. The return value of drmatomicgetcrtcstate needs to be checked. This is done to prevent the use of the error pointer ‘crtcstate’ in case of a failure...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/smc: Check smcdv2extoffset when receiving a proposal message. When receiving a proposal message from the server, the smcdv2extoffset field in the proposal message comes from the remote client, and cannot be fully trusted. Onc...

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: ocfs2: Fixed an uninitialized value in ocfs2filereaditer. Syzbot has reported the following KMSAN errors: BUG: KMSAN: Uninitialized value in ocfs2filereaditer+0x9a4/0xf80; ocfs2filereaditer+0x9a4/0xf80; ioread+0x8d4/0x20f0;...

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

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: A potential dereferencing issue with the RCU was fixed in the wilcparsejoinbssparam function. In the wilcparsejoinbssparam function, the TSF field of the ies structure is accessed after the RCU read-side critical...

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: Drivers: hv: util: Avoid accessing a ringbuffer that is not initialized yet. If the KVP or VSS daemon starts before the VMBus channel’s ringbuffer is fully initialized, we can encounter a panic as follows: hvutils: Registering th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: media: cx88: A null-ptr-deref bug was fixed in the bufferprepare function. When the driver calls cx88riscbuffer to prepare the buffer, the function call may fail, resulting in an empty buffer and a null-ptr-deref later in 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: hwmon: adc128d818 Underflow issues were fixed when writing limit attributes. The DIVROUNDCLOSEST function, after kstrtol, may cause an underflow if a large negative number, such as -9223372036854775808, is provided by the user...

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: Media: dvb-frontends: dib3000mb: The issue of an uninitialized value was fixed in dib3000writereg. Syzbot reports that there is an issue with uninitialized values discovered by KMSAN in dib3000readreg. The local variable rb2 is...

Astra Linux – Vulnerability in exiv2

An invalid memory address dereferencing was discovered in the Exiv2::DataValue::read method in value.cpp in Exiv2 0.26. This vulnerability causes a segmentation fault and an application crash, resulting in a denial of service...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp i2c: Initializing the event handler for read bytes A value of 0xff was set for I2C reads of the mctp-i2c device. Otherwise, reads will return “val” from the I2C bus driver. For I2c-aspeed and i2c-npcm7xx, this represents an...

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

In the Linux kernel, the following vulnerability has been resolved: net: bridge: xmit: Ensure that the ethheaderlen field is set to a valid value. The syzbot triggered an uninitvalue1 error in the bridgedevice’s xmit path by sending a packet shorter than ETHHLEN bytes. To fix this issue, check...

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

In the Linux kernel, the following vulnerabilities have been resolved: tipc: Changed the nlapolicy for bearer-related names to NLANULSTRING. The syzbot reported the following uninit-value access issues 1: ===================================================== BUG: KMSAN: uninit-value in strlen in...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed an uninitialized value in caifseqpktsendmsg. When nrsegs equals zero in iovecfromuser, the object msg-msgiter.iov contains uninitialized stack memory, which is used in caifseqpktsendmsg. This behavior is defined in...

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

In the Linux kernel, the following vulnerability has been resolved: ipv6: A potential uninit-value access in ip6makeskb has been fixed. Just as it was done in the commit fc1092f51567 „ipv4: Fix uninit-value access in ipmakeskb for IPv4, check FLOWIFLAGKNOWNNH on fl6-flowi6flags. Instead of checki...

Astra Linux – Vulnerability in ujson

UltraJSON is a fast JSON encoder and decoder written in pure C, with bindings for Python 3.7+. It was found that affected versions incorrectly decoded certain characters. JSON strings containing escaped surrogate characters that were not part of a valid surrogate pair were decoded incorrectly. Th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: Check the return value of mdbitmapgetcounter. Check the return value of mdbitmapgetcounter in case it returns a NULL pointer, which would lead to a null pointer dereferencing. v2: Update the check to include...

Astra Linux – Vulnerability in exim4

Exim 4 before 4.94.2 has an improper restriction on write operations within the bounds of a memory buffer. This occurs when processing name=value pairs within MAIL FROM and RCPT TO commands...

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

In the Linux kernel, the following vulnerabilities have been resolved: hsr: Fixed uninit-value access in fillframeinfo Syzbot reports the following uninit-value access problems. ===================================================== BUG: KMSAN: uninit-value in fillframeinfo net/hsr/hsrforward.c:60...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/tegra: nvdec: Fix for the dmaalloccoherent error check A check has been added to prevent a NULL return value when using dmaalloccoherent. This change follows Robin’s fix for the vic.c file in drm/tegra: vic: Fix of DMA API...