Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ext4 file system failing to empty the pending discard operations after being remounted as...

CVE-2023-54021

In the Linux kernel, the following vulnerability has been resolved: ext4: set goal start correctly in ext4mbnormalizerequest We need to set acgex to notify the goal start used in ext4mbfindbygoal. Set acgex instead of acfex in ext4mbnormalizerequest. Besides we should assure goal start is in rang...

CVE-2025-40119

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

RLSA-2025:9302 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ice: Fix deinitializing VF in error path CVE-2025-21883 kernel: sched/fair: Fix potential memory corruption in childcfsrqonlist CVE-2025-21919 kernel: ibmvnic: Use kernel helpers for hex...

PT-2025-40210

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the ext4 filesystem implementation. Specifically, the ext4 get group info function previously triggered a kernel BUG when encountering an invalid...

kernel: ext4: fix corruption during on-line resize

A vulnerability was found in the ext4 filesystem in the Linux kernel during on-line resizing operations. When an ext4 filesystem is resized while mounted, it could lead to data corruption...

ext4: fix infinite loop when replaying fast_commit

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