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 Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: Lock the inode in shared mode before starting fiemap. Currently, fiemap does not lock the inode itself VFS lock; instead, it only locks a file range within the inode’s io tree. However, this can lead to a deadlock if there...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: fs/ntfs3: Fixed a null-ptr-deref issue in inode-iop in ntfslookup. Syzbot reported a null-ptr-deref bug: ntfs3: loop0: The sector size of NTFS is 1024, while the media sector size is 512. ntfs3: loop0: Marking the volume as...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate compress cache inode only when enabled The F2FSCOMPRESSINO function uses NMIsbi-maxnid as the synthetic inode number for the compressed page cache inode. This inode only exists when the compresscache mount option i...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: does not allow unaligned truncation on released compress inode An F2FS image may become corrupted after performing the following test cases: - mkfs.f2fs -O extraattr,compression -f /dev/vdb - mount /dev/vdb...

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: fs: writeback: Fixed a use-after-free issue in markinodedirty. A use-after-free issue occurred when markinodedirty accessed bdiwriteback, which was in progress during the switch operation. CPU: 1, PID: 562, Comm: systemd-random-N...

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

In the Linux kernel, the following vulnerabilities have been resolved: nilfs2: Fixing inode number range checks The patch series “nilfs2: Fixing potential issues related to reserved inodes” addresses these issues. This series fixes a use-after-free issue reported by syzbot, which was caused by th...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ubifs: Fixed a deadlock issue in concurrent rename whiteout and inode writeback processes. Related tasks with deadlocks: 77.028764 Task: kworker/u8:4 State: D Stack: 0 PID: 132 77.028820 Call trace: 77.029027 schedule+0x8c/0x1...

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

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed a buffer overflow issue when parsing NFS reparse points. ReparseDataLength is the sum of the InodeType size and the DataBuffer size. To obtain the DataBuffer size, it is necessary to subtract the InodeType size fro...

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

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on ixattrnid in sanitycheckinode syzbot reports a kernel bug as below: F2FS-fs loop0: Mounted with checkpoint version = 48b305e4 ================================================================== BUG:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: NFSv4.2: fixed issues related to nfs42sscopen. A destination server, when performing a COPY operation, should not accept the passed-in filehandle if it is not a regular filehandle. If the allocfilepseudo function fails, we nee...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ext2: Added more validation checks for inode counts. Checks were added to ensure that the number of inodes stored in the superblock matches the number calculated based on the number of inodes per group. It was also verified th...

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: hfsplus: Verify the inode mode when loading from disk. syzbot reports that the SIFMT bits of the inode-imode field can become invalid when the SIFMT bits of the 16-bit “mode” field loaded from disk are corrupted. According to 1,...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed the issue of clearing dirty inodes in f2fsevictinode. As reported by Yanming in Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=215904 The kernel message is as follows: Kernel BUG at fs/f2fs/inode.c:825! Call...

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 – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix the return value of f2fsconvertinlineinode If the device is read-only, make f2fsconvertInline inode return EROFS instead of zero. Otherwise, a panic may occur during the writing of dirty pages of inline inodes, as...

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 – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: dax: fix an issue where overflowing extents beyond the inode size occurs during partial writing. The daxiomaprw function does two things in each iteration: it maps the written blocks and copies user data to those blocks. If...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not drop the extentmap for free space inode on a write error. While running the CI for an unrelated change, I encountered the following panic: with generic/648 on btrfsholesspacecache. Assertion failed: blockstart !=...

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: ext4: Fix for corruption during online resizing We observed corruption during online resizing of a file system that is larger than 16 TiB and has a 4k block size. When there are more than 2^32 blocks, resizeinode is turned off by...