CVE-2025-40314: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-40314DEBIAN-CVE-2025-40314
Published 08-12-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-40314 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.2% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.19%
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 41 · Related 38
DLA-4436-1MGASA-2026-0017MGASA-2026-0018OPENSUSE-SU-2026:20145-1SUSE-SU-2026:0278-1SUSE-SU-2026:0281-1

Timeline

  1. 08-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget In the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget structure (pdev->gadget) was freed before its endpoints. The endpoints are linked via the ep_list in the gadget structure. Freeing the gadget first leaves dangling pointers in the endpoint list. When the endpoints are subsequently freed, this results in a use-after-free. Fix: By separating the usb_del_gadget_udc() operation into distinct "del" and "put" steps, cdnsp_gadget_free_endpoints() can be executed prior to the final release of the gadget structure with usb_put_gadget(). A patch similar to bb9c74a5bd14("usb: dwc3: gadget: Free gadget structure only after freeing endpoints").

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.19%

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

Ubuntu154 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.8-1
Linux1 product
  • linux≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < 0cf9a50af91fbdac3849f8d950e883a3eaa3ecea | ≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < 37158ce6ba964b62d1e3eebd11f03c6900a52dd1 | ≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < ea37884097a0931abb8e11e40eacfb25e9fdb5e9 | ≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < 9c52f01429c377a2d32cafc977465f37b5384f77 | ≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < fdf573c517627a96f5040f988e9b21267806be5c | ≥ 8bc1901ca7b07d864fca11461b3875b31f949765, < 87c5ff5615dc0a37167e8faf3adeeddc6f1344a3 | 5.3

3 vendors · 156 products

References

35 links
Show all 35 references