Oracle Linux: CVE-2024-39472: ELSA-2024-5101: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-39472: ELSA-2024-5101:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/05/2024

Created

08/20/2024

Added

08/16/2024

Modified

01/23/2025

Description

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.

Solution(s)

• oracle-linux-upgrade-kernel
• oracle-linux-upgrade-kernel-uek

References

• https://attackerkb.com/topics/cve-2024-39472
• CVE - 2024-39472
• ELSA-2024-5101
• ELSA-2024-8617
• ELSA-2024-12815