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

In the Linux kernel, the following vulnerability has been resolved: inotify: Avoid reporting events with an invalid wd value. When inotifyfreeingmark races with inotifyhandleinodeevent, it is possible that inotifyhandle inodeevent sees that imark-wd has already been reset to -1 and reports this...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Detecting invalid INLINEDATA + EXTENTS flag combinations Syzbot reported a bug in ext4escacheextent when opening a Verity file on a corrupted ext4 file system that was mounted without a journal. The issue arises when the fi...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed the bug in estreesearch caused by an invalid boot loader inode. We have the following issues: kernel BUG at fs/ext4/extentsstatus.c:203! invalid opcode: 0000 1 PREEMPT SMP CPU: 1 PID: 945 Comm: cat Not tainted...

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

In the Linux kernel, the following vulnerabilities have been resolved: filelock: A potential “use-after-free” issue was fixed in posixlockinode. Light Hsieh reported a KASAN UAF warning in traceposixlockinode. The request pointer was previously changed to point to a lock entry that was added to t...

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: f2fs: fixed the sanity check on ino and xnid. syzbot reported a f2fs bug as follows: INFO: Task syz-executor140:5308 was blocked for more than 143 seconds. Not tainted 6.14.0-rc7-syzkaller-00069-g81e4f8d68c66 0 “echo 0...

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

In the Linux kernel, the following vulnerabilities have been resolved: gfs2: Always check the inode size of inline inodes. Check whether the inode size of inline inodes is within the allowed range when reading inodes from the disk gfs2dinodein. This prevents on-disk corruption. The two checks in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: gfs2: No more self-recovery. When a node withdraws from the system and it turns out that it is the only node with the filesystem mounted, gfs2 currently attempts to replay the local journal to restore the filesystem to a consiste...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an uninitialized pointer-free operation in addinoderef The addinoderef function does not initialize the “name” struct when it is declared. If any of the following calls to readoneinode returns NULL, dir = readone...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel up to version 6.2.7, fs/ntfs3/inode.c contains an invalid kfree function because it does not validate the MFT flags before replaying logs...

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

In the Linux kernel, the following vulnerabilities have been resolved: jffs2: Fixed potential illegal address access in jffs2freeinode. During the stress testing of the jffs2 file system, the following abnormal outputs were found: 2430.649000 Unable to handle kernel paging request at virtual...

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: ocfs2: Passing a u64 value to ocfs2truncateInline may lead to an overflow. Syzbot reported a kernel bug in ocfs2truncateInline. There are two reasons for this: first, the passed parameter value is greater than...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs: export anoninodemakesecureinode and fix the issue with secretmem LSM bypass. The anoninodemakesecureinode function was exported to allow KVM guestmemfd to create anonymous inodes with proper security context. This replaces...

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: f2fs: fixed the f2fsbugon when uninstalling the filesystem, specifically the call to f2fsevict inode. Creating large files during the checkpoint disabling period results in insufficient free segments. When writing back the root...

Astra Linux – Vulnerability in u-boot

An integer overflow occurs in the ext4fsreadsymlink function in Das U-Boot before version 2025.01-rc1. This issue arises due to the use of the zalloc function, which adds one to a le32 variable. This occurs through a crafted ext4 file system with an inode size of 0xffffffff. As a result, the mall...

Astra Linux – Vulnerability in Linux 5.10, Linux

A use-after-free vulnerability was discovered in the Linux kernel’s ext4 file system, particularly regarding the handling of the additional inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

Astra Linux – Vulnerability in ntfs-3g

In NTFS-3G versions before version 2021.8.22, when a specially crafted NTFS inode pathname is provided in an NTFS image, a heap buffer overflow may occur, leading to memory disclosure, denial of service, and even code execution...

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 potential out-of-bounds memory access occurred in nilfsfindentry. Syzbot reported that when searching records in a directory where the isize of an inode is corrupted and has a large value, memory access outside the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: Messages from MDS are dropped when unmounting When unmounting, all dirty buffers will be flushed. After the last osd request is completed, the last reference to icount will be released. Then, the dirty buffers will be flush...

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: Squashfs: fixed an issue where uninit-value was accessed in squashfsgetparent. Syzkaller reported a bug titled “KMSAN: uninit-value in squashfsgetparent”. This issue arises when openbyhandleat is called with a file handle...

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

In the Linux kernel, the following vulnerability has been resolved: vfs: fixed a race condition between eviceinodes and findinode&iput Hi, everyone, I recently noticed a bug in btrfs. After investigating it further, I believe it’s a race condition in vfs. Let’s assume that an inode in this case,...