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: nilfs2: A bug has been fixed where nilfsgetblock returns a successful status when searching for and inserting the specified block both times fail inconsistently. If this inconsistent behavior is not due to a previously fixed bug,...

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

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Reverted the behavior where “ACPICA: Avoid Info: mapping multiple BARs. Your kernel is fine.” This issue was addressed by removing the requirement for memory mappings for operation regions to overlap page boundaries, as...

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: lltemac: The function platformgetresource was replaced with the function devmplatformioremapresourcebyname. This replacement affects the call using 0 as the resource name. This ultimately leads to a null pointer in the strcm...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: fbdev: Fixed an out-of-bounds write in fastimageblit. This issue occurs when a user-space program calls ioctl FBIOPUTCON2FBMAP by passing the console number and the frame buffer number. Ideally, this maps the console to the frame...

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

In the Linux kernel, the following vulnerabilities have been resolved: 1. Regulator: In the core module, the regulatorsupplyaliaslist should be protected using the regulatorlistmutex. The regulatorsupplyaliaslist was accessed without any locking mechanisms in functions like regulatorsupplyalias,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Fixed the check for NULL values in the SCCB field. The tracing code called by the SCLP interrupt handler contains early exits if the SCCB address associated with an interrupt is NULL. This check is performed after the...

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: smack: /smack/doi/ accepts previously used values. Writing a value to /smack/doi that has ever been written there in the past disables networking for non-ambient labels. For example: bash cat /smack/doi 3 netlabelctl -p cipso lis...

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: pstore: ramcore: Fixed an issue where an incorrect success return occurred when vmap failed. In persistentramvmap, vmap may return NULL upon failure. If the offset is non-zero, adding offsetinpagestart causes the function to retu...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: crypto: qat – fix DMA transfer direction When CONFIGDMAAPIDEBUG is enabled, during the execution of the crypto self-test for QAT crypto algorithms, the function adddmaentry reports a warning indicating that overlapping mapping...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tracing/eprobes: Ensure that event probes are consistent with kprobes and uprobes. Currently, if the symbol @ is attempted to be used with an event probe eprobes, it will cause a NULL pointer dereference crash. Both kprobes and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mm/vmemmap/devdax: fixed a kernel crash that occurred when probing devdax devices. The commit 4917f55b4ef9 “mm/sparse-vmemmap: improved memory savings for compound devmaps” added support for using optimized vmmemap for devdax...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: udmabuf: Set the DMA mask for the udmabuf device v2 If the DMA mask is not set explicitly, the following warning occurs when the userspace attempts to access the dma-buf via the CPU, as reported by syzbot: WARNING: CPU: 1 PID:...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

Guests running on Arm can cause Denial of Service DoS attacks on Dom0 through PV devices. When mapping memory pages of guests on Arm, Dom0 uses an rbtree to keep track of the foreign mappings. The update of this rbtree does not always occur completely with the relevant lock held, resulting in a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: TCP: fixed page frag corruption upon a page fault. Steffen reported a corruption of the TCP stream for HTTP requests served by the Apache web-server, using a CIFS mount-point and the corresponding file’s memory mapping. The root...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: e100: A potential use of memory after freeing it has been fixed in e100xmitprepare. In e100xmitprepare, if we cannot map the skb, then -ENOMEM is returned. As a result, e100xmitframe will return NETDEVTXBUSY, and the upper layer...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. The Samba smbd file server must map Windows group identities SIDs to Unix group IDs gids. The code responsible for this mapping contained a flaw that could allow it to read data beyond the end of the array, in the event that a negative cache entry was added to the...

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

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Map EBADMSG to nfserrio to avoid warnings. Ext4 will throw -EBADMSG during ext4readdir when a checksum error occurs, resulting in the following warning. Fix this by mapping EBADMSG to nfserrio. nfsdbufferedreaddir...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fixed an issue where the CMA heap fault handler made a mistake in calculating the boundary. Until the VMDONTEXPAND flag was added in commit 1c1914d6e8c6 “dma-buf: heaps: Don’t track CMA dma-buf pages under RssFile...

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

In the Linux kernel, the following vulnerabilities have been resolved: uprobes: Fixed a kernel information leak via “uprobes” virtual memory. The xoladdvma function maps the uninitialized page allocated by createxolarea into user space. On some architectures x86, this memory is readable even...

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

In the Linux kernel, the following vulnerabilities have been resolved: rvc: Sparse-Memory/vmemmap out-of-bounds fix The offset of vmemmap has been adjusted so that the first page of vmemmap is mapped to the first page of physical memory. This ensures that the bounds of vmemmap are respected durin...