Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/mxsfb: Disabling the overlay plane in mxsfbplaneoverlayatomicdisable When disabling the overlay plane in mxsfbplaneoverlayatomicupdate, the framebuffer pointer of the overlay plane is NULL. Therefore, dereferencing this point...

Astra Linux – Vulnerability in Linux 5.10

Ubuntu Linux 6.8, 6.17, and 7.0 contain SAUCE patches that include a memory leak issue in the handling of large responses to AppArmor notifications. This bug can be triggered by a non-privileged local user. The memory leak could lead to resource exhaustion...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfc: virtualncidev: Fixed a memory leak in virtualncisend The skb object should be freed in virtualncisend; otherwise, kmemleak will report a memleak. Steps for reproduction simulated in qemu: cd tools/testing/selftests/nci make...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng – ensure the buffer for generate is completely filled The generate function in struct rngalg expects that the destination buffer is completely filled if the function returns 0. The qcomrngread function may...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

It was discovered that when executing from a non-leader thread, armed POSIX CPU timers would remain on a list but would then be freed, resulting in a use-after-free...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: jbd2: Check ‘jh-btransaction’ before removing it from the checkpoint. The following process will corrupt the ext4 image: Step 1: jbd2journalcommittransaction jbd2journalinsertcheckpointjh, committransaction // Place jh into...

Astra Linux – Vulnerability in Linux, Linux 5.10

In several functions of binder.c, there is a possibility of representing the wrong domain to SELinux due to a race condition. This could lead to a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation. Product:...

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

In the Linux kernel, the following vulnerabilities have been resolved: BPF: Check rcureadlockTraceheld before calling BPF map helpers. These three BPFmaplookup,update,deleteelem helpers are also available for sleepable BPF programs. Therefore, add the corresponding lock assertion for sleepable BP...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

With shadow paging enabled, the INVPCID instruction results in a call to kvmmmuinvpcidgva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

There are use-after-free vulnerabilities caused by a timer handler in the net/rose/rosetimer.c file of Linux, which allow attackers to crash the Linux kernel without any privileges...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gpio: mockup: Fixed potential resource leakage when registering a chip. If the creation of a software node fails, the locally allocated string array remains unleased. It should be freed during the error handling process...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw exists in the processing of SMB2TREEDISCONNECT commands. The issue arises due to the lack of proper locking when performing operations on an object. An attacker can exploit...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: A memory leak has been fixed in ipcwwandellink. The IOSM driver registers a network device without setting the needsfreenetdev flag. Additionally, it does not call freenetdev when unregistering the network device...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

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, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: usb: smsc75xx: Limit packet length to skb-len The packet length retrieved from skb data may be larger than the actual socket buffer length up to 9026 bytes. In such cases, the cloned skb passed through the network stack may...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ubifs: A memory leak has been fixed in the dorename function. When renaming a file in an encrypted directory, the function fscryptsetupfilename allocates memory for a file name. This name is never used, and before returning to th...

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

A use-after-free vulnerability exists in the Linux kernel’s net/sched: schhfsc HFSC qdisc traffic control component, which can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e., with the HFSCFSC flag set has a parent without a link-sharing curve, then...

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

A use-after-free flaw was discovered in the Linux kernel due to a race condition in the unix garbage collector’s deletion of SKB races involving the unixstreamread generic function on the socket onto which the SKB is queued...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Some memory leaks have been fixed in the error handling code for logreplay. All error handling paths lead to the out variable, where many resources are freed. Do the same here instead of using a direct return. Otherwise...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Do not queue data on closed subflows. Dipanjan reported a critical bug fix at the last minute: WARNING: CPU: 1 PID: 10818 at net/ipv4/afinet.c:153 inetsockdestruct+0x6d0/0x8e0 net/ipv4/afinet.c:153 Linked modules:...