Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: riscv: Flush the current CPU’s ICache before flushing other CPUs. On SiFive Unmatched, I recently encountered the following bug during bootup: 0.000000 ftrace: allocating 36610 entries in 144 pages 0.000000 Oops – illegal...

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: rxrpc: Fixed an oops due to the absence of the prealloc backlog struct. If an AFRXRPC service socket is opened and bound, but the calls are pre-allocated, then rxrpcallocincomingcall will cause an oops because the rxrpcbacklog...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: devlink: fixed the netns refcount leak in devlinknlcmdreload. While preparing my patch series that includes netns refcount tracking, I discovered bugs in devlinknlcmdreload. Some error paths failed to release the refcount...

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

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftct: sanitize layer 3 and 4 protocol numbers in custom expectations - Disallow families other than NFPROTOIPV4,IPV6,INET. - Disallow layer 4 protocols without ports, as the destination port is a mandatory attribut...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/hisilicon/hibmc: fixed the issue where hibmc loaded failed. When hibmc loaded failed, the driver used hibmcunload to free the resource, but the mutexes in mode.config were not initialized, which would access a NULL pointer...

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 in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: assign CURSEGALLDATAATGC if blkaddr is valid mkdir /mnt/test/comp f2fsio setflags compression /mnt/test/comp dd if=/dev/zero of=/mnt/test/comp/testfile bs=16k count=1 truncate --size 13 /mnt/test/comp/testfile In the above...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid allocating blocks from a group with a corrupted block bitmap in ext4mbtrybestfound. Determine whether the group block bitmap is corrupted before using acbex in ext4mbtrybestfound to prevent allocating blocks from a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ALSA: mts64: Fix possible null-ptr-defer in sndmts64interrupt I received a “null-ptr-defer” error report when performing the following tests on the QEMU platform: I executed the following commands: make defconfig and...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel, specifically with versions up to 5.9.1, when used with Xen in versions up to 4.14.x. Users of guest operating systems may experience a denial of service where the host operating system hangs due to a high rate of events affecting dom0, also known as...

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 – fixed 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 found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fbdev: Added bounds checking in bitputcs to prevent out-of-bounds writes using vmalloc. Added bounds checking to prevent writes beyond the framebuffer boundaries when rendering text near the screen edges. Return early if the Y...

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: pmdomain: arm: scmi: Fixed the issue of a memory leak caused by the failure to remove generic power domains when the ofgenpdaddprovideronecell function fails during probing. If the ofgenpdaddprovideronecell function fails during...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: dpaa2-eth: fix use-after-free in dpaa2ethremove Access to netdev after freenetdev will cause a use-after-free bug. Move the debug log before the freenetdev call to avoid this issue...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel before version 5.13.6, the drivers/usb/host/max3421-hcd.c file allowed physically nearby attackers to cause a denial of service including use-after-free errors and panic conditions by removing a MAX-3421 USB device under certain circumstances...

Astra Linux – Vulnerability in Linux 5.10

The nftablesnewset function in net/netfilter/nftablesapi.c in the Linux kernel before version 5.12.13 allows local users to cause a denial of service due to NULL pointer dereferencing and general protection faults, caused by the absence of initialization for nftsetelemexpralloc. A local user can...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Ethernet: ecbhf: Fixed the dmafreecoherent function’s DMA handle. In the error-prone implementation of dmafreecoherent, it incorrectly uses priv-rxbuf.alloclen as the DMA handle. This could result in improper unmapping of th...

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

In the Linux kernel, the following vulnerability has been resolved: tcpbpf: The return value of tcpbpfsendmsg was corrected. When we use the cork mechanism in psock-cork, the last message triggers flushing, resulting in sending a skmsg that is larger than the current message size. In this case, i...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/amd/display: Skip Recompute DSC Params if no Stream on Link Why A NULL pointer dereference occurred during MST and DSC setup. BUG: NULL pointer dereference in the kernel, address: 0000000000000008 PGD 0 P4D 0 Oops: 0000 1...

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: AppArmor: The recursive approach used for removing profiles has been replaced with an iterative one. The profile removal code uses recursion when removing nested profiles, which can lead to exhaustion of the kernel’s stack and...