PT-2024-32115 · Linux+1 · Linux Kernel+1

Syzbot · Published 2024-08-20 · Updated 2025-09-29 · CVE-2024-46688

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 (affected versions not specified)

Description The issue is related to an out-of-bound access in the Linux kernel when the z erofs gbuf growsize() function partially fails due to memory allocation failure or fault injection. This can lead to null-ptr-deref or out-of-bound access because the old gbuf->pages[] array may not be large enough. The fix involves checking against gbuf->nrpages in advance to prevent this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-125

CWE-787

Related Identifiers

ALSA-2025_16880

ALT-PU-2024-13260

BDU:2025-03694

CVE-2024-46688

Affected Products

Alt Linux

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46688.json · Exploit
• https://ubuntu.com/security/CVE-2024-46688 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-46688 · Vendor Advisory
• https://git.kernel.org/stable/c/49c0e081998008cde0c872c0ff9affa1ece4b878 · Patch
• https://cve.org/CVERecord?id=CVE-2024-46688 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-46688 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-46688 · Vendor Advisory
• https://git.kernel.org/stable/c/0005e01e1e875c5e27130c5e2ed0189749d1e08a · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-46688 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-46688 · Security Note
• https://osv.dev/vulnerability/CVE-2024-46688 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03694 · Security Note
• https://lore.kernel.org/linux-cve-announce/2024091338-CVE-2024-46688-7a5a@gregkh · Note
• https://docs.bell-sw.com/security/cves/CVE-2024-46688 · Note
• https://git.kernel.org/linus/0005e01e1e875c5e27130c5e2ed0189749d1e08a · Note