PT-2024-33774 · Linux+4 · Linux Kernel+4

Johannes Thumshirn · Published 2024-07-31 · Updated 2026-05-26 · CVE-2024-49932

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.10.0-rc7+

Description: The issue arises when the Linux kernel's btrfs filesystem is backed by a RAID stripe tree and readahead is performed on the relocation inode. This can lead to an ENOENT error due to preallocated extents not being mapped in the RST, causing the readahead to submit invalid reads to the device. As a result, an assertion occurs in the scatter-gather list code, leading to a kernel bug. The blk rq map sg function is involved in this process, and the error can cause the system to crash.

Recommendations: To resolve this issue, update the Linux kernel to a version newer than 6.10.0-rc7+. As a temporary workaround, consider disabling the readahead on relocation inode for btrfs filesystems to minimize the risk of exploitation.

Exploit

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

ALT-PU-2024-17211

ALT-PU-2025-12647

AZL-52938

AZL-52979

BDU:2025-16127

CVE-2024-49932

ECHO-97AB-035A-C186

OPENSUSE-SU-2024:14500-1

OPENSUSE-SU-2025:14705-1

USN-7276-1

USN-7277-1

USN-7310-1

Affected Products

Alt Linux

Debian

Linuxmint

Linux Kernel

Ubuntu

References · 1298

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49932.json · Exploit
• https://ubuntu.com/security/CVE-2024-53044 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-49963 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53177 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50099 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50244 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-49914 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50171 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53191 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-47712 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-49855 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-53193 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-50101 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-56684 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-47702 · Vendor Advisory