Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: stmmac: Clearing the variable when destroying the workqueue Currently, when suspending the driver and stopping the workqueue, it is checked whether workqueue is not NULL. If it is NULL, the workqueue is destroyed. The function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to prevent race conditions during the fsyncentryslab access by multiple f2fs filesystem instances. As reported by syzbot, there is a use-after-free issue during f2fs recovery: A use-after-free occurs when...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: avoiding a garbage value in panthorioctldevquery The ‘prioritiesinfo’ field is uninitialized, and the uninitialized value is copied to the user object when calling PANTHORUOBJSET. Using memset to initialize...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: Fixed corrupted packets for XDPSHAREDUMEM. A issue was addressed in the XDPSHAREDUMEM mode, along with the aligned mode, where packets were corrupted for the second and any subsequent sockets bound to the same umem. In other...

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: ath9k: Delay all operations related to ath9kwmieventtasklet until initialization is complete. The ath9kwmieventtasklet function used in ath9khtc assumes that all data structures have been fully initialized by the time it...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: i40e: Fixed the issue of freeing uninitialized misc IRQ vectors When the VSI setup failed in i40eprobe, as part of the PF switch setup, the driver tried to free misc IRQ vectors in i40eclearinterruptscheme, resulting in a kernel...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iio: temperature: mlx90635: Fixed the dereference of ERRPTR in mlx90635probe. When devmregmapiniti2c fails, regmapee can be an error pointer. Instead of checking ISERRregmapee, regmap is checked, which seems like a copy-paste err...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: clk: bcm: rpi: Assign -num before accessing -hws The commit f316cdff8d67 “clk: Annotate struct clkhwonecelldata with countedby annotated the hws member of struct clkhwonecelldata with countedby. This informs the bounds sanitizer ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Fork: Defer linking of the vma file until vma is fully initialized. Thorvald reported a WARNING 1. The root cause of the issue lies in a race condition: - CPU 1: fork; - CPU 2: hugetlbfsfallocate; - dupmmap: hugetlbfspunchhole...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm: Check that output polling is initialized before disabling it. In drmkmshelperpolldisable, check that output polling is initialized before disabling polling. If not, flag this as a warning. Additionally, in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: hns3: Fixed a kernel crash that occurred when devlink reloaded during pf initialization. The devlink reloading process will access hardware resources, but the register operations are performed before the hardware is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Media: MediTech: vcodec: Fixed an oops when HEVC initialization fails. The stateless HEVC decoder saves the instance pointer in the context, regardless of whether the initialization succeeded or not. This caused a use-after-fr...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iavf: Fix for the hang during reboot/shutdown The recent commit 974578017fc1 “iavf: Add waiting so the port is initialized in remove” adds a wait-loop at the beginning of iavfremove, to ensure that port initialization is complete...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nbd: Always initialize struct msghdr completely. syzbot reports that the value of msg-msggetinq may be uninitialized 1. The struct msghdr has many new fields recently. We should always ensure that their values are zero by...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: tty: vt: initialize unicode screen buffer The syzbot report indicates a kernel vulnerability at the vcsread function 1. The buffer can be read immediately after the resizing operation. Initialize the buffer using kzalloc...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipmi: ssif: Initialize ssifinfo-client early. During the probe process, ssifinfo-client is dereferenced in a faulty path. However, it is set after some error checking has already been performed. This causes a kernel crash if an...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86 – Handling of SRCU initialization failures during page track initialization Check the return value of initsrcustruct, which may fail due to OOM conditions when initializing the page track mechanism. Lack of checking lead...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: udplite: Fixed the null-ptr-deref in udpenqueuescheduleskb. syzbot reported a null-ptr-deref in udpsksk-udpprodqueue. 0 Since the referenced commits, udplibinitsock may fail, as may udpinitsock and udpv6initsock. Let’s handle...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vf: Early GT MMIO initialization is required to read the GMDID. VFs need to communicate with the GuC to obtain the GMDID value. Existing GuC functions that use this information assume that the GT has already set up its MMI...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vdpasimblk: The number of address spaces and virtqueue groups were set. The commit bda324fd037a “vdpasim: control virtqueue support” added two new fields nas, ngroups to vdpasimdevattr, but we forgot to initialize them for...