Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Publish jinode after initialization The ext4inodeattachjinode function publishes ei-jinode to concurrent users. It used to set ei-jinode before jbd2journalinitjbd inode, allowing a reader to observe a non-NULL jinode with...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid resizing to a partial cluster size This patch prevents attempts to resize the filesystem to a cluster boundary that is not an integer multiple of the cluster size. Online resizing to a size that is not integral to the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Update sjournalinum if it changes after journal replay. When mounting a custom-extracted ext4 image, sjournalinum may change after journal replay. This is clearly unreasonable, as we have successfully loaded and replayed th...

Astra Linux – Vulnerability in 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 – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed a potential out-of-bound read issue in ext4fcreplayscan. For the scan loop, it is necessary to ensure that at least EXT4FCTAGBASELEN space is available. If the remaining space is less than EXT4FCTAGBASELEN, it may lea...

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

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed a deadlock issue when converting an inline directory in nojournal mode. In nojournal mode, ext4finishconvertinlinedir can cause a self-deadlock by calling ext4handledirtydirblock after having already taken the...

Astra Linux – Vulnerability in Linux, Linux 5.10

A use-after-free flaw was discovered in fs/ext4/namei.c:dxinsertblock, within the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with user privileges to cause a denial of service...

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 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed a bug in extent parsing when ehentries == 0 and ehdepth 0. When traversing inode extents, the ext4extbinsearchidx function assumes that the extent header has been validated previously. However, there are no checks to...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed the issue where idisksize could exceed isize in partially written cases. It is possible for idisksize to exceed isize, triggering a warning. genericperformwrite: - copied = iovitercopyfromuseratomiclen // copied...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: fix invalid free tracking in ext4xattrMoveToBlock In ext4xattrMoveToBlock, the value of the extended attribute that we need to move to an external block may be allocated by kvmalloc if the value is stored in an external...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: A bug has been fixed in ext4mbreleasegrouppa. If a malicious fuzzer overwrites the ext4 superblock while it is mounted, causing sfirstdatablock to be set to a very large number, the calculation of the block group may...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ext4: Do not report a bug if someone dirty pages without first consulting ext4. The unpinuserpagesremote function dirty pages without properly warning the file system in advance. Jan Kara noted this race condition in 20181...

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

In the Linux kernel, the following vulnerability has been resolved: EXT4: Zeroing idisksize when initializing the bootloader inode If the bootloader inode has never been used before, the EXT4IOCSWAPBOOT inode will initialize it, including setting isize to 0. However, if the “never before used”...

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: ext4: Correct group validation in ext4mbgoodgroup. The group corruption check will access memory related to the grp structure. This can lead to a kernel crash if grp is set to NULL. Therefore, perform a NULL check before the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: fixed memory leaks in ext4fnamesetupfilename,preparelookup. If filename casefolding fails, we will be leaking memory from the fscryptname struct, specifically from the 'cryptobuf.name' member. Make sure we free this memory ...

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

A use-after-free flaw was discovered in the ext4remount function in the fs/ext4/super.c file within ext4 in the Linux kernel. This flaw allows a local user to cause an information leak issue when freeing the old quota file names before a potential failure, resulting in a use-after-free condition...

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

In the Linux kernel, the following vulnerability has been resolved: In ext4, the “set goal start” operation is performed correctly in ext4mbnormalizerequest. We need to set acgex to notify the goal start used in ext4mbfindbygoal. Instead of using acfex, we should use acgex in...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Convert inline data to extents when truncate exceeds inline size A check has been added to ext4setattr to convert files from inline data storage to extent-based storage when the truncate function increases the file size...

SUSE CVE-2026-89666

In the Linux kernel, the following vulnerability has been resolved: nfsd: reject out-of-range nseconds in NFSv3 SETATTR and create ops A client can send an NFSv3 SETATTR, CREATE, MKDIR, SYMLINK or MKNOD carrying an atime or mtime whose nseconds field is out of range. The value is well-formed on t...