ext4：修复检查以防止错误使用 inode 的误报 (CVE-2021-46946)
CVE编号
CVE-2021-46946利用情况
暂无补丁情况
N/A披露时间
2024-02-28漏洞描述
In the Linux kernel, the following vulnerability has been resolved: ext4: fix check to prevent false positive report of incorrect used inodes Commit <50122847007> ("ext4: fix check to prevent initializing reserved inodes") check the block group zero and prevent initializing reserved inodes. But in some special cases, the reserved inode may not all belong to the group zero, it may exist into the second group if we format filesystem below. mkfs.ext4 -b 4096 -g 8192 -N 1024 -I 4096 /dev/sda So, it will end up triggering a false positive report of a corrupted file system. This patch fix it by avoid check reserved inodes if no free inode blocks will be zeroed.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。- 攻击路径 N/A
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- 权限要求 N/A
- 影响范围 N/A
- 用户交互 N/A
- 可用性 N/A
- 保密性 N/A
- 完整性 N/A
| CWE-ID | 漏洞类型 |
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