Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copyfromkernelnofault to read from an unsafe address. Reading from an unsafe address using copyfromkernelnofault in archadjustkprobeaddr is allowed because this function is called before checking whether the...

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

In the Linux kernel, the following vulnerability has been resolved: lib: objagg: Fixed general protection fault The library supports the aggregation of objects into other objects only if the parent object does not have a parent itself. In other words, nesting is not supported. Aggregation occurs ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In l2capchanput of l2capcore, there is a potential use after free due to improper locking. This could lead to a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation. Product: Android Versions: Android kernel Android...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: proc/vmcore: The issue of clearing the user buffer was fixed by properly using clearuser. To clear a user buffer, we cannot simply use memset; we must use clearuser. With a virtio-mem device that registers a vmcorecb and has some...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: udf: Fixed the issue of discarding data before allocation at the indirect extent boundary. When the preallocation extent is the first one in the extent block, the code would corrupt the extent tree header instead. This issue has...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Always drain health during the shutdown callback. There is no point in performing recovery operations during device shutdown. If health-related tasks are initiated, one must wait until they are completed to avoid race...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: RFCOMM: No fix to ensure that user input is validated before copying data. The syzbot reported that rfcommsocksetsockoptold copies data without checking the length of the user input. BUG: KASAN: Out-of-bounds access...

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

In the Linux kernel, the following vulnerabilities have been resolved: IB/hfi1: Fixed the off-by-one error in sdma.h’s tx-numdescs. Unfortunately, the commit fd8958efe877 introduced another error, causing the descs array to overflow. This leads to further crashes that can be easily reproduced usi...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fixed a potential use-after-free issue in irqprocessworklist. The listforeachentry Safe function was used to allow iterating through the list and deleting entries during the iteration process. The descriptors are...

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: ibmvnic: Added a check for transmission to prevent skb leaks. Here’s a summary of how the driver stores a reference to an skb during transmission: 1. txbufffreemapconsumerindex-skb = newskb; 2. freemapconsumerindex =...

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

In the Linux kernel, the following vulnerability has been resolved: TCP: Fixed a shift-out-of-bounds issue in dctcpupdatealpha. In dctcpupdatealpha, we use a module parameter dctcpshiftg as follows: alpha -= minnotzeroalpha, alpha dctcpshiftg; ... deliveredce...

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: appletalk: Fix use-after-free in AARP proxy probe The AARP proxy-probe routine aarpproxyprobenetwork sends a probe, releases the aarplock, sleeps, and then re-acquires the lock. During this period, a timer thread...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fixed potential memory corruption in ipmicreateuser. The “intf” list iterator becomes an invalid pointer if the correct “intf-intfnum” is not found. Calling atomicdec&intf-nrusers with an invalid pointer will lea...

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

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix nullptrderef in gl861i2cmasterxfer In gl861i2cmasterxfer, msg is controlled by the user. When msgi.buf is null and msgi.len is zero, previous checks on msgi.buf will still be performed. Malicious dat...

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: rpl: Fixed a use-after-free in rpldosrhInline. Running lwtdstcacherefloop.sh in selftest with KASAN triggers results in the following error: 0 root@fedora net ./lwtdstcacherefloop.sh … TEST: rpl input 57.631529...

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

In the Linux kernel, the following vulnerabilities have been resolved: net: can: j1939: Initializes unused data in j1939sendone. syzbot reported a kernel-infoleak issue in rawrecvmsg. j1939sendone creates a full frame including unused data, but it does not initialize those unused data. This cause...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rcu: A buffer overflow has been fixed in printcpustallinfo. The output from printcpustallinfo may cause a buffer overflow if there is a significant difference in “jiffies”. This might seem unlikely, but computers sometimes get ti...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: serial: pch: Fixed the reference count leak in pchrequestdma. According to the comments on pcigetslot, it returns a pcidevice with its reference count increased. The caller must decrement the reference count by calling pcidevput...

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: nfsd: Clearing aclaccess/acldefault after releasing them If the attempt to get acldefault fails, aclaccess and acldefault will be released simultaneously. However, aclaccess will still retain a pointer pointing to the released...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Platform/x86: ISST: Fixed the KASAN report “slab-out-of-bounds” bug. Attaching an SST PCI device to a virtual machine causes the issue “BUG: KASAN: slab-out-of-bounds”. Kasan report: 19.411889...