The vulnerability of the ext4_validate_block_bitmap() function in the fs/ext4/balloc.c module of the Ext4 file system in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the ext4validateblockbitmap function in the fs/ext4/balloc.c module of the Ext4 file system in the Linux operating system is related to the lack of validation for resource format correctness. Exploiting this vulnerability could allow an attacker to trigger a service failure...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990828)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990828 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: Avoid excessive partition lengths Avoid mounting filesystems where the partition would...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988802)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988802 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default...

Linux Distros Unpatched Vulnerability : CVE-2021-39520

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData located in...

Linux Distros Unpatched Vulnerability : CVE-2021-39519

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PullQData located in...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from msbdataclear not freeing the erase block bitmap, which could lead to a memory leak...

SUSE CVE-2022-49174

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

DEBIAN-CVE-2022-49347

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in ext4writepages we got issue as follows: EXT4-fs error device loop0: ext4mbgeneratebuddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------ cut here ------------ kernel...

DEBIAN-CVE-2022-49174

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

UBUNTU-CVE-2022-49174

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

CVE-2022-49347 ext4: fix bug_on in ext4_writepages

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in ext4writepages we got issue as follows: EXT4-fs error device loop0: ext4mbgeneratebuddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------ cut here ------------ kernel...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from ext4writepages not handling block bitmap inconsistencies correctly, which could lead to a kernel crash...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid using corrupted block bitmap buffers. When the filesystem’s block bitmap is corrupted, we detect the corruption while loading the bitmap. As a result, allocation attempts fail with an error. However, the next allocatio...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

A vulnerability was found in the ext4mbfindbygoal function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

A vulnerability was found in the ext4mbfindbygoal function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: ext4: avoid dividing by 0 in mb_update_avg_fragment_size() when block bitmap corrupt

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid dividing by 0 in mbupdateavgfragmentsize when block bitmap corrupt The Linux kernel CVE team has assigned CVE-2024-26774 to this issue. Upstream advisory:...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

A vulnerability was found in the ext4mbfindbygoal function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

SUSE CVE-2024-46777

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid excessive partition lengths Avoid mounting filesystems where the partition would overflow the 32-bits used for block number. Also refuse to mount filesystems where the partition length is so large we cannot safely inde...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()

A vulnerability was found in the ext4mbtrybestfound function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

DEBIAN-CVE-2024-46777

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid excessive partition lengths Avoid mounting filesystems where the partition would overflow the 32-bits used for block number. Also refuse to mount filesystems where the partition length is so large we cannot safely inde...