CVE-2023-52581 - CVE House
Back to Database
Status published Unknown CVE-2023-52581

netfilter: nf_tables: fix memleak when more than 255 elements expired

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true. This means we recycle the initial gc container structure and lose track of the elements that came before. While at it, don't deref 'gc' after we've passed it to call_rcu.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-52581

Credits & Attribution

No credits recorded in the NVD database.

References

More from Linux

View All →
CVE-2025-71315
drm/vkms: Convert to DRM's vblank timer
Unknown 0
CVE-2025-71314
drm/panthor: Recover from panthor_gpu_flush_caches() failures
Unknown 0
CVE-2025-71313
PCI: endpoint: Add missing NULL check for alloc_workqueue()
Unknown 0
CVE-2025-71312
fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()
Unknown 0
CVE-2025-71311
fs/ntfs3: Initialize new folios before use
Unknown 0

Affected Vendor

Affected Software

Linux
Vulnerable Versions:
8da1b048f9a501d3d7d38c188ba09d7d0d5b8c27, bbdb3b65aa91aa0a32b212f27780b28987f2d94f, 448be0774882f95a74fa5eb7519761152add601b, d19e8bf3ea4114dd21fc35da21f398203d7f7df1, ea3eb9f2192e4fc33b795673e56c97a21987f868, 5f68718b34a531a556f2f50300ead2862278da26, 0624f190b5742a1527cd938295caa8dc5281d4cd, 6.4.11, 6.5, 0, 6.5.6, 6.6

Timeline

Official Publish: March 2nd, 2024
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.