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 the ext4mbmarkbb function not properly handling block group boundaries in the flexbg and fastcommit cases,...

GSD-2022-1002051 ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

ext4: fix ext4mbmarkbb with flexbg with fastcommit This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.110 by commit...

GSD-2022-1001474 ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

ext4: fix ext4mbmarkbb with flexbg with fastcommit This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.19 by commit...

GSD-2022-1001155 ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit

ext4: fix ext4mbmarkbb with flexbg with fastcommit This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.17.2 by commit...

Denial of service

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service divide-by-zero error and panic via a malformed ext4 filesystem containing a super block with a large FLEXBG group size aka sloggroupsperflex...