medium
5.5
CWE
770
Advisory Published
Updated

CVE-2024-39472: xfs: fix log recovery buffer allocation for the legacy h_size fixup

First published: Fri Jul 05 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: xfs: fix log recovery buffer allocation for the legacy h_size fixup Commit a70f9fe52daa ("xfs: detect and handle invalid iclog size set by mkfs") added a fixup for incorrect h_size values used for the initial umount record in old xfsprogs versions. Later commit 0c771b99d6c9 ("xfs: clean up calculation of LR header blocks") cleaned up the log reover buffer calculation, but stoped using the fixed up h_size value to size the log recovery buffer, which can lead to an out of bounds access when the incorrect h_size does not come from the old mkfs tool, but a fuzzer. Fix this by open coding xlog_logrec_hblks and taking the fixed h_size into account for this calculation.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
redhat/kernel<6.10
6.10
Linux Kernel<=6.9.3
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Software Stack<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Virtual Appliance<=ISVG 10.0.2
IBM Security Verify Governance Identity Manager Container<=ISVG 10.0.2
debian/linux<=5.10.223-1<=5.10.234-1
6.1.129-1
6.1.133-1
6.12.21-1
6.12.22-1
debian/linux-6.1
6.1.129-1~deb11u1

Remedy

https://git.kernel.org/stable/c/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2024-39472?

    CVE-2024-39472 is classified as a medium severity vulnerability in the Linux kernel.

  • How do I fix CVE-2024-39472?

    To fix CVE-2024-39472, you should upgrade your Linux kernel to the recommended versions provided by your distribution.

  • Which versions of the Linux kernel are affected by CVE-2024-39472?

    CVE-2024-39472 affects multiple versions of the Linux kernel up to 6.9.3 and includes specific Debian and Red Hat kernel versions.

  • Is there a workaround for CVE-2024-39472?

    No specific workaround for CVE-2024-39472 has been documented; updating the kernel is the best approach.

  • What distribution sources are associated with CVE-2024-39472?

    CVE-2024-39472 is relevant to Red Hat and Debian distributions with specific kernel versions that need upgrading.

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