Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fixed a memory leak in the error handling process. If the memdupuser call fails, the memory allocated in a previous call a few lines above should be freed. Otherwise, a memory leak will occur...

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

In the Linux kernel, the following vulnerability has been resolved: mfd: arizona: Use pmruntimeresumeandget to prevent refcnt leak In arizonaclk32kenable, we should use pmruntimeresumeandget. pmruntimegetsync will increase the refcnt even when it returns an error...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Drivers: vmbus: Check for channel allocation before looking up relids relid2channel assumes that the vmbus channel array is allocated when it is called. However, in situations like kdump/kexec, not all relids will be reset by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly handling the kvmarminit failure in finalizepkvm Currently, there is no synchronization between the finalizepkvm and kvmarminit initcalls. The finalizepkvm continues to execute even if kvmarminit fails,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: can: bcm: bcmtxsetup: fixed KMSAN uninit-value in vfswrite Syzkaller reported the following issues: ===================================================== BUG: KMSAN: uninit-value in aiorwdone fs/aio.c:1520 inline BUG: KMSAN:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix tcpinittransfer so that icskcainitialized is not reset. This commit addresses a bug discovered by syzkaller, which could lead to spurious double-initizations for congestion control modules. This could result in memory...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: The dcn301calculatewmanddlg function for the FPU has been modified. The logic for dcn30 has been mirrored. This fix may result in a number of WARN messages and some kernel panics...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Avoid potential “vm use-after-free” situations. By adding the virtual machine to the vmxa table, it becomes visible to user space. This could potentially cause user space to attempt to close the virtual machine at the...

Astra Linux – Vulnerability in Linux 5.10

A issue was discovered in the Linux kernel through version 5.16-rc6. In the file mtkvcodecfwvpuinit located in drivers/media/platform/mtk-vcodec/mtkvcodecfwvpu.c, there is a lack of check for the return value of devmkzalloc. This could lead to a null pointer dereferencing...

Astra Linux – Vulnerability in Linux 5.10

A flaw was discovered in the Linux kernel. The existing KVM SEV API contains a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest VM instance in an AMD CPU that supports Secure Encrypted Virtualization SEV...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fixed a deadlock issue during reading mqd from debugfs An erroneous disk backup on my desktop entered the debugfs directory, triggering the following deadlock scenario in the amdgpu debugfs files. The machine also...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: scsi: mpt3sas: A kernel panic occurred during the drive powercycle test. While iterating through Shost’s sdev list, it is possible that one of the drives is being removed, and its sastarget object is freed, but its sdev object...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: blk-mq: Ensure that the active queue usage is retained for biointegrityprep. The function blkintegrityunregister may be called if the queue usage counter is not retained for a bio with integrity prepared. This could lead to a...

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: KVM: s390/diag: fixed the issue ofracy access to the physical CPU number in the diag 9c handler. We currently check if the target CPU equals -1, but this may change at a later time when we will use this functionality. We store th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iouring/net: Ensure that the import of the vectorized buffer node is tied to the notification. When support for vectorized registered buffers was added, the import itself uses ‘req’ instead of the notification iokiocb, sr-notif...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: gsmi: fixed a null dereference in gsmigetvariable. We can access EFI variables without retrieving the attributes; therefore, we must allow this behavior in gsmi. The commit 859748255b43 “efi: pstore: Omit efivars caching EFI...

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

A vulnerability was discovered in the HCI socket implementation due to a missing capability check in the net/bluetooth/hcisock.c file within the Linux kernel. This flaw allows an attacker to execute management commands without authorization, compromising the confidentiality, integrity, and...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ubifswbufwritenolock: A read out-of-bounds issue exists in this function. This issue occurs when ubifswbufwritenolock attempts to access memory beyond the allocated bounds of the buffer buf. Here’s an example of how this issue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: jbd2: fixed a potential use-after-free issue in jbd2fcwaitbufs. In jbd2fcwaitbufs, using bh after referencing the buffer’s head count may lead to a use-after-free condition. Therefore, ensure that the buffer is updated before...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: Avoid data corruption on cq descriptor number Since commit 30f241fcf52a “xsk: Fix immature cq descriptor production”, the descriptor number is stored in the skb control block, and xskcqsubmitaddrlocked relies on it to place...