UBUNTU-CVE-2024-47676

Advisory lineage Upstream: 1 Downstream: 1

Upstream

CVE-2024-47676

Downstream

USN-7310-1

Published: 21 Oct 2024, 12:15

Last modified:04 Feb 2026, 02:27

Vulnerability Summary

Overall Risk (default)

medium

31/100

CVSS Score

7.8 HIGH

3.1 (osv_ubuntu)

EPSS Score

No data

KEV

Not listed

Ransomware

No reports

Public exploits

None found

Dark Web

Not detected

Timeline

21 Oct 2024, 12:15

Published

Vulnerability first disclosed

04 Feb 2026, 02:27

Last Modified

Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlb_fault(). This happens because vmf_anon_prepare() could drop the per-VMA lock and allow the current VMA to be freed before hugetlb_vma_unlock_read() is called. We can fix this by using a modified version of vmf_anon_prepare() that doesn't release the VMA lock on failure, and then release it ourselves after hugetlb_vma_unlock_read().

CVSS Metrics

v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

ubuntu•linux-allwinner-5.19
all
ubuntu•linux-aws-5.0
all
ubuntu•linux-aws-5.11
all
ubuntu•linux-aws-5.13
all
ubuntu•linux-aws-5.19
all
ubuntu•linux-aws-5.3
all
ubuntu•linux-aws-5.8
all
ubuntu•linux-aws-6.2
all
ubuntu•linux-aws-6.5
all
ubuntu•linux-azure
all
ubuntu•linux-azure-5.11
all
ubuntu•linux-azure-5.13
all
ubuntu•linux-azure-5.19
all
ubuntu•linux-azure-5.3
all
ubuntu•linux-azure-5.8
all
ubuntu•linux-azure-6.2
all
ubuntu•linux-azure-6.5
all
ubuntu•linux-azure-edge
all
ubuntu•linux-azure-fde
all
ubuntu•linux-azure-fde-5.19
all
ubuntu•linux-azure-fde-6.2
all
ubuntu•linux-gcp
all
ubuntu•linux-gcp-5.11
all
ubuntu•linux-gcp-5.13
all
ubuntu•linux-gcp-5.19
all
ubuntu•linux-gcp-5.3
all
ubuntu•linux-gcp-5.8
all
ubuntu•linux-gcp-6.2
all
ubuntu•linux-gcp-6.5
all
ubuntu•linux-gke
all
ubuntu•linux-gke-4.15
all
ubuntu•linux-gke-5.15
all
ubuntu•linux-gke-5.4
all
ubuntu•linux-gkeop-5.4
all
ubuntu•linux-hwe
all
ubuntu•linux-hwe-5.11
all
ubuntu•linux-hwe-5.13
all
ubuntu•linux-hwe-5.19
all
ubuntu•linux-hwe-5.8
all
ubuntu•linux-hwe-6.2
all
ubuntu•linux-hwe-6.5
all
ubuntu•linux-hwe-edge
all
ubuntu•linux-intel-5.13
all
ubuntu•linux-intel-iot-realtime
all
ubuntu•linux-lowlatency-hwe-5.19
all
ubuntu•linux-lowlatency-hwe-6.2
all
ubuntu•linux-lowlatency-hwe-6.5
all
ubuntu•linux-nvidia-6.2
all
ubuntu•linux-nvidia-6.5
all
ubuntu•linux-oem
all

Showing first 50 affected entries in server-rendered view.