CVE-2024-26878

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-26878
In the Linux kernel, the following vulnerability has been resolved: quota: Fix potential NULL pointer dereference Below race may cause NULL pointer dereference P1 P2 dquot_free_inode quota_off drop_dquot_ref remove_dquot_ref dquots = i_dquot(inode) dquots = i_dquot(inode) srcu_read_lock dquots[cnt]) != NULL (1) dquots[type] = NULL (2) spin_lock(&dquots[cnt]->dq_dqb_lock) (3) .... If dquot_free_inode(or other routines) checks inode's quota pointers (1) before quota_off sets it to NULL(2) and use it (3) after that, NULL pointer dereference will be triggered. So let's fix it by using a temporary pointer to avoid this issue.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1ca72a3de915f87232c9a4cb9bebbd3af8ed3e25 Patch
https://git.kernel.org/stable/c/40a673b4b07efd6f74ff3ab60f38b26aa91ee5d5 Patch
https://git.kernel.org/stable/c/49669f8e7eb053f91d239df7b1bfb4500255a9d0 Patch
https://git.kernel.org/stable/c/61380537aa6dd32d8a723d98b8f1bd1b11d8fee0 Patch
https://git.kernel.org/stable/c/6afc9f4434fa8063aa768c2bf5bf98583aee0877 Patch
https://git.kernel.org/stable/c/7f9e833fc0f9b47be503af012eb5903086939754 Patch
https://git.kernel.org/stable/c/8514899c1a4edf802f03c408db901063aa3f05a1 Patch
https://git.kernel.org/stable/c/d0aa72604fbd80c8aabb46eda00535ed35570f1f Patch
https://git.kernel.org/stable/c/f2649d98aa9ca8623149b3cb8df00c944f5655c7 Patch
https://git.kernel.org/stable/c/1ca72a3de915f87232c9a4cb9bebbd3af8ed3e25 Patch
https://git.kernel.org/stable/c/40a673b4b07efd6f74ff3ab60f38b26aa91ee5d5 Patch
https://git.kernel.org/stable/c/49669f8e7eb053f91d239df7b1bfb4500255a9d0 Patch
https://git.kernel.org/stable/c/61380537aa6dd32d8a723d98b8f1bd1b11d8fee0 Patch
https://git.kernel.org/stable/c/6afc9f4434fa8063aa768c2bf5bf98583aee0877 Patch
https://git.kernel.org/stable/c/7f9e833fc0f9b47be503af012eb5903086939754 Patch
https://git.kernel.org/stable/c/8514899c1a4edf802f03c408db901063aa3f05a1 Patch
https://git.kernel.org/stable/c/d0aa72604fbd80c8aabb46eda00535ed35570f1f Patch
https://git.kernel.org/stable/c/f2649d98aa9ca8623149b3cb8df00c944f5655c7 Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Mailing List
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
History

14 Jan 2025, 14:49

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1ca72a3de915f87232c9a4cb9bebbd3af8ed3e25 - () https://git.kernel.org/stable/c/1ca72a3de915f87232c9a4cb9bebbd3af8ed3e25 - Patch
References () https://git.kernel.org/stable/c/40a673b4b07efd6f74ff3ab60f38b26aa91ee5d5 - () https://git.kernel.org/stable/c/40a673b4b07efd6f74ff3ab60f38b26aa91ee5d5 - Patch
References () https://git.kernel.org/stable/c/49669f8e7eb053f91d239df7b1bfb4500255a9d0 - () https://git.kernel.org/stable/c/49669f8e7eb053f91d239df7b1bfb4500255a9d0 - Patch
References () https://git.kernel.org/stable/c/61380537aa6dd32d8a723d98b8f1bd1b11d8fee0 - () https://git.kernel.org/stable/c/61380537aa6dd32d8a723d98b8f1bd1b11d8fee0 - Patch
References () https://git.kernel.org/stable/c/6afc9f4434fa8063aa768c2bf5bf98583aee0877 - () https://git.kernel.org/stable/c/6afc9f4434fa8063aa768c2bf5bf98583aee0877 - Patch
References () https://git.kernel.org/stable/c/7f9e833fc0f9b47be503af012eb5903086939754 - () https://git.kernel.org/stable/c/7f9e833fc0f9b47be503af012eb5903086939754 - Patch
References () https://git.kernel.org/stable/c/8514899c1a4edf802f03c408db901063aa3f05a1 - () https://git.kernel.org/stable/c/8514899c1a4edf802f03c408db901063aa3f05a1 - Patch
References () https://git.kernel.org/stable/c/d0aa72604fbd80c8aabb46eda00535ed35570f1f - () https://git.kernel.org/stable/c/d0aa72604fbd80c8aabb46eda00535ed35570f1f - Patch
References () https://git.kernel.org/stable/c/f2649d98aa9ca8623149b3cb8df00c944f5655c7 - () https://git.kernel.org/stable/c/f2649d98aa9ca8623149b3cb8df00c944f5655c7 - Patch
References () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List
References () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html - () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html - Mailing List
CWE CWE-476
CWE-362
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.7
First Time Linux linux Kernel
Debian debian Linux
Debian
Linux
Information

Published : 2024-04-17 11:15

Updated : 2025-01-14 14:49

NVD link : CVE-2024-26878

Mitre link : CVE-2024-26878

CVE.ORG link : CVE-2024-26878

JSON object : View

Products Affected

linux

  • linux_kernel

debian

  • debian_linux
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-476

NULL Pointer Dereference