Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Driver Core: Fixed the interaction between waitfordeviceprobe and deferredprobetimeout. The mounting of NFS rootfs timed out when deferredprobetimeout was non-zero 1. This occurred because the ipautoconfig initcall timed out...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in the File System API of Google Chrome prior to version 112.0.5615.49 allowed a remote attacker to bypass filesystem restrictions through a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Linux

Local privilege escalation vulnerability in Ubuntu Kernels overlayfs: Ovlcopyupmeta inodedata function skips permission checks when calling ohldosetxattr on Ubuntu kernels...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a race condition when detecting delalloc ranges during fiemap For fiemap, we recently stopped locking the target extent range for the entire duration of the fiemap call, in order to avoid a deadlock in a scenario whe...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a use-after-free on the inode when scanning the root during em shrinking. In the function btrfsscanroot, we access the root of the inode along with fsinfo through a call to btrfsfsclosing. After scheduling the inode...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nubus: The conversion of proccreatesingledata has been partially reversed. The conversion to proccreatesingledata introduced a regression, where reading a file from /proc/bus/nubus results in a segmentation fault: bash grep -r...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Validates the index root when initializing NTFS security. This improves the sanity check for $SDH and $SII during the initialization of NTFS security, ensuring that these index roots are legitimate. 162.459513 BUG:...

Astra Linux – Vulnerability in Linux, Linux 5.10

An integer overflow or wrap-around vulnerability exists in the OpenEuler kernel on Linux file system modules, allowing for forced integer overflow. This issue affects the OpenEuler kernel, starting from version 4.19.90, up to and including version 4.19.90-2401.3, as well as versions 5.10.0-60.18....

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A use-after-free bug in nilfsroot has been fixed in nilfsevictinode. During the unmount process of nilfs2, nothing holds the nilfsroot structure after nilfs2 detaches its writer in nilfsdetachlogwriter. However, since...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Do not set SBRDONLY after filesystem errors When the filesystem is mounted with errors=remount-ro, we previously set the SBRDONLY flag to prevent any further modifications to the filesystem. We knew that this approach misse...

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

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix for lz4 inplace decompression Currently, EROFS can map another compressed buffer for inplace decompression, which was used to handle cases where some pages of compressed data are not actually in-place I/O. However, lik...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed scheduling issues during atomic decompression operations 16.945668 C0 Call trace: 16.945678 C0 dumpbacktrace+0x110/0x204 16.945706 C0 dumpstacklvl+0x84/0xbc 16.945735 C0 schedulebug+0xb8/0x1ac 16.945756 C0...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Error checking was added to ext4extreplaysetiblocks. If the call to ext4mapblocks fails due to a corrupted file system, ext4extreplaysetiblocks may get stuck in an infinite loop. This issue can be reproduced by running...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: fixed the assignment logic of iocb. Commit 18ae8d12991b “f2fs: shows more DIO information at the tracepoint” introduced the iocb field in the ‘f2fsdirectIOenter’ trace event. It only assigns the pointer and then accesses...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed an uninitialized value in ‘ext4evict inode’. Syzbot identified the following issue: ===================================================== BUG: KMSAN: Uninitialized value in ext4evict inode+0xdd/0x26b0,...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: Fixed the issue where f2fswaitonpagewriteback was called in f2fswriterawpages. A BUG will be triggered when writing files concurrently, because the same page may be written back multiple times. The bug occurs at...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netfs: The “copy-to-cache” mechanism has been fixed so that it performs collection using Ceph+FSCache. The “copy-to-cache” mechanism used by Ceph with local caching creates a new request to write data that was just read into the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix for accessing an uninitialized lock in the fc replay path. The following kernel trace can be triggered with fstest generic/629 when executed against a filesystem with the fast-commit feature enabled: INFO: Trying to...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Regenerate the buddy structure after block freeing fails when under fc replay. This fix primarily reverts to commit 6bd97bf273bd “ext4: Remove redundant mbregeneratebuddy”, and reintroduces the function mbregeneratebuddy...

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

A issue was discovered in the Linux kernel before version 6.3.3. There is an out-of-bounds read in the crc16 function in lib/crc16.c when called from fs/ext4/super.c, because ext4groupdesccsum does not properly check an offset. NOTE: This issue is disputed by third parties, as the kernel is not...