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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98834

mtd: core: avoid double-free of OTP NVMEM deviceCVE-2026-98834

Answer in brief

CVE-2026-98834 records a Unknown severity vulnerability in mtd: core: avoid double-free of OTP NVMEM device. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 18, 2026Updated Oct 18, 2026Source checked Oct 18, 2026First seen by HOL Oct 18, 2026Material review Oct 18, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric6.4Not reported
Linux/Linuxgeneric>=e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 <cecf007418b93a2cbc94269e07fe2fb28f54d8fb || >=e0489f6e221f5ddee6cb3bd51b992b790c5fa4b9 <26300879cd8e4612dce66bb8f6ff7cd35fcf3e59 || 6d1af517817a760d7af3dee0fc4603645485495c || f1b4affca1e13706ca2eb075bf6775421236d7d1 || 949476b8601bde5459048eebdf457c9db20addd8 || dd6c85f98ff33b009b819090268cbf679dc208b9 || >=5.15.111 <5.16 || >=6.1.28 <6.2 || >=6.2.15 <6.3 || >=6.3.2 <6.4cecf007418b93a2cbc94269e07fe2fb28f54d8fb, 26300879cd8e4612dce66bb8f6ff7cd35fcf3e59, 5.16, 6.2, 6.3, 6.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to cecf007418b93a2cbc94269e07fe2fb28f54d8fb if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 18, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: mtd: core: avoid double-free of OTP NVMEM device If factory OTP setup fails after the user OTP NVMEM device has been registered, mtd_otp_nvmem_add() unregisters the user device but leaves mtd->otp_user_nvmem set. On an error, the caller unregisters it again. For -EOPNOTSUPP, registration continues and normal teardown unregisters it again. Clear mtd->otp_user_nvmem after unregistering it.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • iio: accel: kionix-kx022a: Fix array boundary checkSame linux/linux package
  • ALSA: line6: reject oversized playback packetsSame linux/linux package
  • ALSA: caiaq: unregister the input device when probe failsSame linux/linux package
  • vt: skip screen update for DEC alignment test on backgroup consolesSame linux/linux package
  • vt: selection: Fix unsigned underflow and slab-out-of-bounds read in paste_selection()Same linux/linux package
  • vc_screen: reload vc pointer before if (ret) in vcs_write() to avoid UAFSame linux/linux package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 18, 2026
References
2 linked sources
Open source record