CVE-2026-93283: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-93283DEBIAN-CVE-2026-93283
Published 24-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-93283 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 8.8% 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 · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:12074-1

Timeline

  1. 24-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix device_register() error path When device_register() fails in i3c_master_register_new_i3c_devs(), put_device() is called to drop the reference taken by device_register(). That drops the last reference, so the device's release callback i3c_device_release() runs and frees the i3c_device. Two problems follow from that: i3c_device_release() does WARN_ON(i3cdev->desc), so it warns because desc->dev->desc still points back at the descriptor. Clear it before calling put_device(). After put_device() frees the i3c_device, desc->dev is left pointing at freed memory, so clear desc->dev as well. That prevents, for example, i3c_master_unregister_i3c_devs() seeing desc->dev as non-NULL and dereferencing it.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

25-09-202621-10-2026
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

Ubuntu165 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 1832ed55df45f4145335ad992fb83813cdc58b5d, < 5bf498623f8397d45f85f14cd631c5e5a565c2fb | ≥ d48fe8d98171e0fffdeaa8b37ce0a6444bff819b, < 20a2b6df91fd782ef2ff551febef594d0b46a9a7 | ≥ 174ae0a3b89e7804e4ea3d31bd83d6e43f39568c, < a14dbdf471001dd0601b0c491184990c178a199c | ≥ e49a51a96b531f1b4bcd8d358e645b6c74ef67e6, < d22ad96f1a0c89e0ba66a2facc7430f0923919e3 | ≥ cab63f64887616e3c4e31cfd8103320be6ebc8d3, < 7f8e2c4f3704d9774bb26b49b1ad6a60ae57d4a0 | ≥ cab63f64887616e3c4e31cfd8103320be6ebc8d3, < 7ef12e1dd06e442eebf370f6e53c41bd056d0f22 | ≥ cab63f64887616e3c4e31cfd8103320be6ebc8d3, < 6ecf17bf5fe8da51a6e3fc9e03a76898fcc5c6cf | ≥ cab63f64887616e3c4e31cfd8103320be6ebc8d3, < 74be657d98a8d684c0475f3cbd450ef2a30ffc73 | 204beeb509d37669de34560e83bb8abffe7ee63a | b24cf43d9babf1265a2bb0ae8d198267cef43b83 | ≥ 5.10.201, < 5.10.270 | ≥ 5.15.139, < 5.15.221 | ≥ 6.1.63, < 6.1.188 | ≥ 6.6.2, < 6.6.157 | ≥ 5.4.261, < 5.5 | ≥ 6.5.12, < 6.6 | 6.7

3 vendors · 168 products

References

12 links
Show all 12 references