7.8

CVE-2026-80572: Input: byd - synchronize timer deletion before freeing private data

Received
AliasesUBUNTU-CVE-2026-80572DEBIAN-CVE-2026-80572
Published 26-08-2026Last modified 30-10-2026

Vulnerability summary

CVE-2026-80572 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.12%
0%100%
Low · -0.06 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 6
MGASA-2026-0506MGASA-2026-0542OPENSUSE-SU-2026:22167-1SUSE-SU-2026:24386-1SUSE-SU-2026:24422-1SUSE-SU-2026:24437-1

Timeline

  1. 26-08-2026
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Input: byd - synchronize timer deletion before freeing private data byd_disconnect() uses timer_delete() before freeing the driver's private data. This does not wait for a running byd_clear_touch() callback, which dereferences the private data and its psmouse pointer. A callback racing with disconnect can therefore access the private data after it has been freed. The timer can also still be re-armed by byd_process_byte() while the disconnect is in progress. Use timer_shutdown_sync() before freeing the private data: it waits for a running callback and turns any later re-arm attempt into a no-op.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.06 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu168 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
  • linux< 6.1.187-1 | < 6.12.107-1 | < 7.1.10-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < fe2785d5513b3254368a1f0831515fc59ab0d40d | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < b4d74810aad9b29c313b4d7880c84aceb5abe488 | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < 84b205297fa15f97510342221d8c9a0119711478 | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < 28d984a66b9e14be74986167b6ad40b5e0daf19a | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < ee944a706a18322b4a2599eebe8040a2994e928f | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < 8dbfd8e32a13e116790780ed0be82b5a05eb9916 | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < 2e509ef60ee41a2da0deb062c262bb530143fb37 | ≥ 2d5f5611dd0de52e9a52b56391a7049a52184e72, < c83e79c0842ed29860648bcce5022ef0ba5001c6 | 4.6

3 vendors · 171 products

References

13 links
Show all 13 references