Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: A fix was made to avoid a use-after-free condition related to cached IPU bio. The xfstest generic/019 report a bug: Kernel BUG: At mm/filemap.c:1619! RIP: 0010:folioendwriteback+0x8a/0x90 Call Trace:...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: usb: ffs: Fix use-after-free for epfile Consider a case where ffsfuncepsdisable is called from ffsfuncdisable as part of the composition switch. At the same time, ffsepfilerelease is called from the user space. ffsepfilerelease...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Fixed an underflow in calculations for the second superblock position. The macro NILFSSB2OFFSETBYTES calculates the position of the second superblock. This calculation results in an underflow when the devicesize argument ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ovl: fixed the warning in ovlcreatereal Syzbot triggered the following warning in ovlworkdircreate - ovlcreatereal: if !err && WARNON!newdentry-d inode The reason is that the cgroup2 filesystem returns from mkdir without...

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

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed an warning in ext4updateinlinedata. Syzbot identified the following issue: EXT4-fs loop0: Mounted a filesystem with ID 00000000-0000-0000-0000-000000000000 without a journal. Quota mode: none. fscrypt: Uses...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtiopmem: Added the missing REQOPWRITE for flushing bio. When performing mkfs.xfs on a pmem device, the following warning was encountered: ------------ Cut here ------------ Warning: CPU: 2, PID: 384; at block/blk-core.c:751:...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Added bounds checking in getmaxinlinexattrvaluesize. Normally, extended attributes within the inode body would be checked when the inode was first opened. However, if someone writes to the block device while the file system...

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

A flaw was discovered in the exFAT driver of the Linux kernel. The vulnerability resides in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: vfat: fixed missing checks for the return value of sbminblocksize When emulating an nvme device on qemu with both logicalblocksize and physicalblocksize set to 8 KiB, but without a file system format, a kernel panic was...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable information disclosure vulnerability in the initnodemanager functionality of F2fs-Tools F2fs.Fsck 1.12 and 1.13. A specially crafted filesystem can be used to disclose information. An attacker can provide a malicious file to trigger this vulnerability...

Astra Linux – Vulnerability in f2fs-tools

There is an exploitable information disclosure vulnerability in the getdnodeofdata functionality of the F2fs-Tools F2fs.Fsck 1.13. A specially crafted f2fs filesystem can lead to information disclosure. An attacker can provide a malicious file that triggers this vulnerability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ovl: Fixed a NULL pointer dereference issue in the copy-up warning message. This patch addresses a NULL pointer dereference that caused a recently introduced warning message to fail...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: fixed an array-index-out-of-bounds read in addmissingindices. stbl is an s8 type, but it must contain offsets into slots that can range from 0 to 127. A bound check was added for this error, and the error code -EIO will be...

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...

Astra Linux – Vulnerability in Linux, Linux 5.10

A race condition was discovered in ext4writeinlinedataend in fs/ext4/inline.c within the ext4 subsystem of the Linux kernel, as of version 5.13.13...

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

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Fixed data corruption after a failed write operation. When buffering a write attempt fails and data cannot be copied into the underlying page cache, the ocfs2writeendnolock function simply zeroes out and dirtyens the page...

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

In the Linux kernel, the following vulnerability has been resolved: fs: hfsplus: removing WARNON from hfspluscatread,writeinode. The syzbot tool encounters WARNON in hfspluscatread,writeinode, where a crafted filesystem image may contain invalid lengths. These conditions do not constitute kernel...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Flush the inode if the atomic file is aborted. We need to flush the inode that was aborted during the atomic operation, to avoid stale dirty inodes during eviction in this call stack: f2fsmarkinodedirtysync+0x22/0x40 f2f...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed error handling in ext4fcrecordmodified inode. The current code does not properly handle the krealloc error case, which could lead to silent memory corruption or a kernel bug. This patch addresses this issue...

Astra Linux – Vulnerability in Linux, Linux 5.10

A heap-based buffer overflow flaw was discovered in the way the legacyparseparam function in the Linux kernel’s Filesystem Context functionality verifies the length of the supplied parameters. A non-privileged user if non-privileged user namespaces are enabled, otherwise requiring CAPSYSADMIN...