CVE-2023-53549

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-53549
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Rework long task execution when adding/deleting entries When adding/deleting large number of elements in one step in ipset, it can take a reasonable amount of time and can result in soft lockup errors. The patch 5f7b51bf09ba ("netfilter: ipset: Limit the maximal range of consecutive elements to add/delete") tried to fix it by limiting the max elements to process at all. However it was not enough, it is still possible that we get hung tasks. Lowering the limit is not reasonable, so the approach in this patch is as follows: rely on the method used at resizing sets and save the state when we reach a smaller internal batch limit, unlock/lock and proceed from the saved state. Thus we can avoid long continuous tasks and at the same time removed the limit to add/delete large number of elements in one step. The nfnl mutex is held during the whole operation which prevents one to issue other ipset commands in parallel.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

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/24a828f5a54bdeca0846526860d72b3766c5fe95 Patch
https://git.kernel.org/stable/c/5e29dc36bd5e2166b834ceb19990d9e68a734d7d Patch
https://git.kernel.org/stable/c/8964cc36ba011dc0e1041131fa2e91fb4c2a811b Patch
https://git.kernel.org/stable/c/a1e1521b463968b4eca7163f61fb6cc54d008061 Patch
https://git.kernel.org/stable/c/ee756980e491c829ba0495bb420b7224a9ee26b2 Patch
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:5.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
History

10 Feb 2026, 22:27

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/24a828f5a54bdeca0846526860d72b3766c5fe95 - () https://git.kernel.org/stable/c/24a828f5a54bdeca0846526860d72b3766c5fe95 - Patch
References () https://git.kernel.org/stable/c/5e29dc36bd5e2166b834ceb19990d9e68a734d7d - () https://git.kernel.org/stable/c/5e29dc36bd5e2166b834ceb19990d9e68a734d7d - Patch
References () https://git.kernel.org/stable/c/8964cc36ba011dc0e1041131fa2e91fb4c2a811b - () https://git.kernel.org/stable/c/8964cc36ba011dc0e1041131fa2e91fb4c2a811b - Patch
References () https://git.kernel.org/stable/c/a1e1521b463968b4eca7163f61fb6cc54d008061 - () https://git.kernel.org/stable/c/a1e1521b463968b4eca7163f61fb6cc54d008061 - Patch
References () https://git.kernel.org/stable/c/ee756980e491c829ba0495bb420b7224a9ee26b2 - () https://git.kernel.org/stable/c/ee756980e491c829ba0495bb420b7224a9ee26b2 - Patch
CWE CWE-667
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
First Time Linux
Linux linux Kernel

04 Oct 2025, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-10-04 16:15

Updated : 2026-02-10 22:27

NVD link : CVE-2023-53549

Mitre link : CVE-2023-53549

CVE.ORG link : CVE-2023-53549

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-667

Improper Locking