CVE-2026-23058: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2026-23058DEBIAN-CVE-2026-23058
Published 04-02-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-23058 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.6% 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
0.20%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 44 · Related 38
DLA-4475-1DLA-4476-1DSA-6126-1DSA-6127-1MGASA-2026-0097MGASA-2026-0098

Timeline

  1. 04-02-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak Fix similar memory leak as in commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"). In ems_usb_open(), the URBs for USB-in transfers are allocated, added to the dev->rx_submitted anchor and submitted. In the complete callback ems_usb_read_bulk_callback(), the URBs are processed and resubmitted. In ems_usb_close() the URBs are freed by calling usb_kill_anchored_urbs(&dev->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in ems_usb_close(). Fix the memory leak by anchoring the URB in the ems_usb_read_bulk_callback() to the dev->rx_submitted anchor.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.02 pp

From 0.18% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.20%

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

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-176.186 | < 6.8.0-117.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1105.112 | < 6.8.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.8-1
Linux1 product
  • linux≥ 702171adeed3607ee9603ec30ce081411e36ae42, < e2c71030dc464d437110bcfb367c493fd402bddb | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < f48eabd15194b216030b32445f44230df95f5fe0 | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < 61e6d3674c3d1da1475dc207b3e75c55d678d18e | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8 | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < 46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < 68c62b3e53901846b5f68c5a8bade72a5d9c0b87 | ≥ 702171adeed3607ee9603ec30ce081411e36ae42, < 0ce73a0eb5a27070957b67fd74059b6da89cc516 | 2.6.32

3 vendors · 158 products

References

40 links
Show all 40 references