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...

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 – 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 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 – 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 - уязвимость в u-boot

The U-Boot versions from 2016.09 to 2019.07-rc4 can memset too much data while reading a crafted ext4 filesystem. This results in a stack buffer overflow, potentially leading to code execution...

CVE-2026-34961 barebox ext4 Extent Parsing Out-of-Bounds Read

barebox prior to version 2026.04.0 contains out-of-bounds read vulnerabilities in ext4 extent parsing due to missing validation of the ehentries field against buffer capacity in fs/ext4/ext4common.c. Attackers can supply a malicious ext4 filesystem image via USB, SD card, or network boot to trigg...

CLSA-2026-1778266904 kernel: Fix of 188 CVEs

rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present - xfrm: esp: avoid in-place decrypt on shared skb frags - clk: Fix clkhwgetclk when dev is NULL CVE-2022-49187 - x86/sgx: Add overflow check in sgxvalidateoffsetlength CVE-2022-49785 - ext4: init quota for 'old.inode' in...

CVE-2026-43288

A flaw was found in the Linux kernel's ext4 filesystem. A local user can trigger a system panic, leading to a Denial of Service DoS, by mounting a specially crafted ext4 filesystem with specific quota and project options. This occurs because a per-CPU counter is accessed before it is properly...

CVE-2026-43065

A flaw was found in the ext4 filesystem within the Linux kernel. When an ext4 filesystem is initially mounted with the 'discard' option and then remounted with 'nodiscard', pending discard operations may not be properly cancelled or flushed. This can lead to unhandled resource operations if the...

CVE-2026-43068

A flaw was found in the Linux kernel's ext4 filesystem. This vulnerability occurs when the system attempts to allocate blocks from a corrupted block group within the ext4 filesystem. An attacker with local access could potentially trigger this condition, leading to delayed block allocation failur...

CVE-2026-43067

A flaw was found in the ext4 filesystem within the Linux kernel. This vulnerability involves an issue where the system incorrectly handles block allocation for indirect mapped files, potentially allowing blocks to be allocated beyond their defined 32-bit limit. This could lead to data corruption ...

SUSE CVE-2026-43066

In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4fcreplayinode error paths During code review, Joseph found that ext4fcreplayinode calls ext4getfcinodeloc to get the inode location, which holds a reference to iloc.bh that must be released via brels...

Linux Distros Unpatched Vulnerability : CVE-2026-43067

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ext4: handle wraparound when searching for blocks for indirect mapped blocks Commit...

EUVD-2026-27368

In the Linux kernel, the following vulnerability has been resolved: ext4: handle wraparound when searching for blocks for indirect mapped blocks Commit 4865c768b563 "ext4: always allocate blocks only from groups inode can use" restricts what blocks will be allocated for indirect block based files...

CVE-2026-43066

In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4fcreplayinode error paths During code review, Joseph found that ext4fcreplayinode calls ext4getfcinodeloc to get the inode location, which holds a reference to iloc.bh that must be released via brels...

CVE-2026-43066

CVE-2026-43066: In Linux kernel ext4_fc_replay_inode(), iloc.bh leak could occur on error paths due to missing brelse at several failure points. The patch adds an out_brelse label before the existing out label to ensure iloc.bh is released, and also makes ext4_fc_replay_inode() propagate errors i...

CVE-2026-43065 ext4: always drain queued discard work in ext4_mb_release()

In the Linux kernel, the following vulnerability has been resolved: ext4: always drain queued discard work in ext4mbrelease While reviewing recent ext4 patch1, Sashiko raised the following concern2: If the filesystem is initially mounted with the discard option, deleting files will populate...

CLSA-2026-1777614651 kernel: Fix of 52 CVEs

crypto: algifaead - Fix minimum RX size check for decryption - crypto: afalg - Fix page reassignment overflow in afalgpulltsgl - crypto: authencesn - Fix src offset when decrypting in-place - crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption - crypto: authenc - use...

ext4: avoid infinite loops caused by residual data

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