CVE-2022-48668 smb3: fix temporary data corruption in collapse range

What is CVE-2022-48668?

CVE-2022-48668 is a low-severity vulnerability in Linux kernel, published on 28 Apr 2024.

Official description

In the Linux kernel, the following vulnerability has been resolved:

smb3: fix temporary data corruption in collapse range

collapse range doesn't discard the affected cached region so can risk temporarily corrupting the file data. This fixes xfstest generic/031

I also decided to merge a minor cleanup to this into the same patch (avoiding rereading inode size repeatedly unnecessarily) to make it clearer.

Which versions are affected by CVE-2022-48668?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-48668?

Upgrade to a fixed version.

Is CVE-2022-48668 being exploited?

There is no known exploitation of CVE-2022-48668 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-67475, DEBIAN-CVE-2022-48668, GHSA-qc9v-5v7p-jcxf, ROOT-OS-UBUNTU-2204-CVE-2022-48668, UBUNTU-CVE-2022-48668.