CVE-2021-4155

Medium

Description

A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.

SeverityMedium
CVSS5.5
Exploit probability—
ProductLinux Kernel
PublishedAug 24, 2022
First seenAug 24, 2022
Weakness typeCWE-131CWE-131

How to fix

Update
  • linux linux_kernel5.16 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernelv < 5.165.16

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