Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ASoC: imx-card: Added a NULL check in imxcardprobe The devmkasprintf function returns NULL when memory allocation fails. Currently, imxcardprobe does not check for this case, which results in a NULL pointer being dereferenced. A...

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

In the Linux kernel, the following vulnerabilities have been resolved: ata: libata-core: Fixed null pointer dereference on error If the ataportalloc call in atahostalloc fails, atahostrelease will be called. However, the code in atahostrelease attempts to free the members of the ataport struct...

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

In the Linux kernel, the following vulnerabilities have been resolved: vlan: Fixed a memory leak in vlannewlink. The responsible commit added back a bug that I fixed in commit 9bbd917e0bec “vlan: fixed a memory leak in vlandevsetegresspriority”. If a memory allocation fails in vlanchangelink afte...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - media: v4l2-subdev: Fixed the issue with the check for allocation failure in v4l2subdevcallstatetry. The v4l2subdevcallstatetry macro uses v4l2subdevstatealloc to allocate a subdev state, but it does not check the returned...

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: fbdev: The issue was fixed by correcting fbsetvar to prevent a null-ptr dereference in fbvideomodetovar. If fbaddvideomode in fbsetvar fails to allocate memory for fbvideomode, it may lead to a null-ptr dereference in...

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

In the Linux kernel, the following vulnerability has been resolved: mmc: mmctest: Fixed the issue of NULL dereferencing upon allocation failure. If the allocation of test-highmem = allocpages fails, calling freepagestest-highmem will result in a NULL dereferencing. Additionally, the error code ha...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ima: Fixed a potential memory leak in imainitcrypto. If the SHA1 template is unable to be allocated, IMA fails to initialize and exits without freeing the imaalgoarray. Adding the necessary kfree call for imaalgoarray will preven...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Rapidio: fixed a possible UAF Use-after-Allocation when kfifoalloc fails. If kfifoalloc fails in mportcdevopen, it jumps to errfifo and simply frees priv. However, priv is still in chdev-filelist, and traversing the list may lead...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where an uninitialized pointer was freed during the readalloconename function. The readalloconename function does not initialize the name field of the passed fscryptstr structure if kmalloc fails to allocate...

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: nfs: Handling of failures in nfsgetlockcontext during unlock path When memory is insufficient, the allocation of nfslockcontext in nfsgetlockcontext fails and returns -ENOMEM. If we mistakenly treat an nfs4unlockdata structure...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nouveau/dmem: Handling of allocation failures by kcalloc In nouveaudmemevictchunk, if the physical memory runs out, kcalloc will return null. As a result, if we dereference srcpfns, dstpfns, or dmaaddrs, null pointer...

Astra Linux – Vulnerability in Harfbuzz

HarfBuzz is a text shaping engine. Prior to version 12.3.0, there was a null pointer dereference vulnerability in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function fails to check whether hbmalloc returns NULL before using placement new to construct an...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iouring/tctx: A workaround has been implemented for the allocation error issue with xastore. The syzbot triggered the following WARNON: WARNING: CPU: 0, PID: 16, in iouring/tctx.c, line 51: iouringfree+0xfa/0x140. The issue is...

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

In the Linux kernel, the following vulnerabilities have been resolved: nvmet-tcp: Fixed a kernel crash that occurred when command allocation failed. If command allocation fails in nvmettcpalloccmds, the kernel crashes in nvmettcpreleasequeuework due to a NULL pointer dereferencing. nvmet: Failed ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Handling of integer overflows in kmallocreserve The committed change was as follows: c ptr = kmallocsize; if ptr size = ksizeptr; size = kmallocsizeroundupsize; ptr = kmallocsize; This caused various crashes, as reported ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbdev: Fixed doregisterframebuffer to prevent null-ptr-dereference in fbvideomodetovar. If fbaddvideomode in doregisterframebuffer fails to allocate memory for fbvideomode, it will later lead to a null-ptr dereference in...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Staging: vt6655 – Some erroneous memory cleanup loops have been fixed. In some initialization functions of this driver, memory is allocated using ‘i’ as an index variable, with the value increasing from 0. The “Fixes” section...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: HID: uclogic: Add a NULL check in uclogicinputconfigured. The devmkasprintf function returns NULL when memory allocation fails. Currently, uclogicinputconfigured does not check for this case, resulting in a NULL pointer being...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: lib/testhmm.c: Handling of failures in allocating srcpfns and dstpfns The kcalloc function used in dmirrordeviceevictchunk will return null if the physical memory runs out. As a result, if srcpfns or dstpfns is dereferenced, a...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: clk: zynq – Prevent null pointer dereferencing caused by kmalloc failure The kmalloc function in zynqclksetup will return null if physical memory runs out. As a result, if we use snprintf to write data to a null address, the null...