7.8

CVE-2023-53660: linux

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-53660DEBIAN-CVE-2023-53660
Published 07-10-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2023-53660 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 10
RHSA-2022:8267RHSA-2024:2394SUSE-SU-2025:21040-1SUSE-SU-2025:21052-1SUSE-SU-2025:21056-1SUSE-SU-2025:21064-1

Timeline

  1. 07-10-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptr_ring The following warning was reported when running xdp_redirect_cpu with both skb-mode and stress-mode enabled: ------------[ cut here ]------------ Incorrect XDP memory type (-2128176192) usage WARNING: CPU: 7 PID: 1442 at net/core/xdp.c:405 Modules linked in: CPU: 7 PID: 1442 Comm: kworker/7:0 Tainted: G 6.5.0-rc2+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Workqueue: events __cpu_map_entry_free RIP: 0010:__xdp_return+0x1e4/0x4a0 ...... Call Trace: <TASK> ? show_regs+0x65/0x70 ? __warn+0xa5/0x240 ? __xdp_return+0x1e4/0x4a0 ...... xdp_return_frame+0x4d/0x150 __cpu_map_entry_free+0xf9/0x230 process_one_work+0x6b0/0xb80 worker_thread+0x96/0x720 kthread+0x1a5/0x1f0 ret_from_fork+0x3a/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> The reason for the warning is twofold. One is due to the kthread cpu_map_kthread_run() is stopped prematurely. Another one is __cpu_map_ring_cleanup() doesn't handle skb mode and treats skbs in ptr_ring as XDP frames. Prematurely-stopped kthread will be fixed by the preceding patch and ptr_ring will be empty when __cpu_map_ring_cleanup() is called. But as the comments in __cpu_map_ring_cleanup() said, handling and freeing skbs in ptr_ring as well to "catch any broken behaviour gracefully".

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu108 products
  • linux< 5.15.0-88.98
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1049.54
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 11941f8a85362f612df61f4aaab0e41b64d2111d, < b58d34068fd9f96bfc7d389988dfaf9a92a8fe00 | ≥ 11941f8a85362f612df61f4aaab0e41b64d2111d, < cbd000451885801e9bbfd9cf7a7946806a85cb5e | ≥ 11941f8a85362f612df61f4aaab0e41b64d2111d, < 937345720d18f1ad006ba3d5dcb3fa121037b8a2 | ≥ 11941f8a85362f612df61f4aaab0e41b64d2111d, < 7c62b75cd1a792e14b037fa4f61f9b18914e7de1 | 5.15
  • linux_kernel≥ 5.15, < 5.15.126 | ≥ 5.16, < 6.1.45 | ≥ 6.2, < 6.4.10 | 6.5:rc1 | 6.5:rc2 | 6.5:rc3 | 6.5:rc4
Debian1 product
  • linux< 6.1.52-1 | < 6.4.11-1

3 vendors · 111 products

References

8 links