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VulnerabilityPublished

CVE-2026-98669: Linux kernel · iio: buffer: serialize buffer teardown with mode claims

Source GCVE Database

0
Authoritative record:CVE-2026-98669

Not known to be exploited · fixed in e63188d77e10c0951bf67da6c295f768fd1abf4b : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e63188d77e10c0951bf67da6c295f768fd1abf4b, b466db9e68b4741af85f6c017e2bb0a2f025053f, 89f3852a28fcf7bab599280cb082baa0675536db +4

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.15.137 <5.16
  • >=6.1.60 <6.2
Fixed in
  • e63188d77e10c0951bf67da6c295f768fd1abf4b
  • b466db9e68b4741af85f6c017e2bb0a2f025053f
  • 89f3852a28fcf7bab599280cb082baa0675536db
  • 84bb0fc46ccf6a545b8fdf57cda83770186ed8dd
  • 6a728408ff522b749c2a3c7e68f44e861fa0dbfb
  • 6.2
  • 5.16
LinuxLinuxAffected
  • =6.2
Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to address this issue by ensuring proper locking during buffer teardown. Users should apply the official kernel updates that include this fix.

Description

A vulnerability in the Linux kernel's Industrial I/O (iio) subsystem related to buffer teardown and mode claims has been resolved. The issue involved improper synchronization during buffer teardown in iio_device_unregister(), which could invalidate buffer state while a buffer-mode claim was held. The fix ensures proper locking order to maintain buffer-mode claim guarantees during device unregister operations.

References

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