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: dma-buf: A memory barrier should be inserted before updating numfences. smpstoremb inserts a memory barrier after storing data. This differs from what the comment originally intended; a null pointer dereferencing can occur if the...

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

In the Linux kernel, the following vulnerability has been resolved: vsock: Do not allow binding to VMADDRPORTANY. It is possible for a vsock to automatically bind itself to VMADDRPORTANY. This can cause a “use-after-free” issue when a connection is made to the bound socket. The socket returned by...

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: scs: A wrong parameter was fixed in scsmagic. The scsmagic function requires a void variable, but a struct taskstruct is provided instead. taskscstsk represents the starting address of the task’s shadow call stack, and...

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: x86: Fixed a situation where a hard lockup occurs in the virtual machine after prolonged inactivity, due to the periodic HV timer. When advancing the expiration of the guest’s APIC timer in periodic mode, set the expiration ...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/amd/display: Check gpioid before using it as an array index. WHY & HOW The value “GPIOIDUNKNOWN -1” is not a valid value for an array index. Therefore, this value should be checked in advance. This fix resolves 5 OVERRUN...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Avoid using sksocket after free when sending messages. The sk-sksocket is not locked or referenced in the backlog thread. During the call to skbsendsock, there is a race condition involving the release of sksocket...

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: soc: aspeed: Add a NULL check in aspeedlpcenablesnoop. devmkasprintf returns NULL when memory allocation fails. Currently, aspeedlpcenablesnoop does not check for this case, resulting in a NULL pointer being dereferenced. Add 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: net: The TOCTOU issue in skisreadable has been fixed. sk-skprot-sockisreadable is a valid function pointer when sk resides in a sockmap. After the last skpsockput call which usually occurs when a socket is removed from the sockma...

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: serial: Fixed a potential nullptrderef in mlbusioprobe The devmioremap function can return NULL in case of an error. Currently, mlbusioprobe does not check for this situation, which could lead to a NULL pointer dereference. A NUL...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Handle the return value of hdrfirstde The hdrfirstde function returns a pointer to a struct NTFSDE. This pointer may be NULL. To effectively handle the NULL error, it is important to implement an error handler. This wil...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: detecting invalid INLINEDATA + EXTENTS flag combinations The syzbot reported a BUGON in ext4escacheextent when opening a Verity file on a corrupted ext4 file system that was mounted without a journal. The issue arises when...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Net: Bridge – Fix for use-after-free due to bypassing the port’s state 1 Syzbot reported a use-after-free when deleting an expired fdb. This issue arises due to a race condition between the ongoing learning process and the deleti...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to perform a sanity check on the inlinedots inode. As Wenqing reported in Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215765 This issue causes a kernel panic when performing the following actions: -...

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: Input: ims-pcu – check the record size in imspcuflashfirmware. The “len” variable comes from the firmware, and we generally don’t trust the firmware. However, it’s always better to double-check. If the “len” is too large, it coul...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in the Linux kernel before version 6.3.4. In the file fs/ksmbd/smb2pdu.c of ksmbd, there is a flaw where the UserName value is not properly checked. This occurs because the address of the security buffer is not taken into consideration, resulting in a out-of-bounds read...

Astra Linux – Vulnerability in Linux, Linux 5.10

A issue was discovered in the Linux kernel for PowerPC before version 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to a bug in the implementation of arch/powerpc/kvm/book3shvrmhandlers.S, which handles the values of the SRR1 register...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: Messages from MDS are dropped when unmounting When unmounting, all dirty buffers will be flushed. After the last osd request is completed, the last reference to icount will be released. Then, the dirty buffers will be flush...

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: HID: intel-ish-hid: A use-after-free issue was addressed in the ishtphidremove function. The system may experience a random crash a few minutes after the driver is removed. This issue arises due to improper handling of memory...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fixed the rxrpclocal leak in rxrpclookuppeer. It is necessary to call rxrpcPutlocal for the peer candidate before kfree, as it holds a reference to rxrpclocal. DH: v2: The peer freeing code has been abstracted into a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A validation check for zero numsubauth is added before accessing subauth. Accessing psid-subauthpsid-numsubauth - 1 without checking whether numsubauth is non-zero can lead to an out-of-bounds read. This patch adds a...