VulnerabilityPublished 23 Oct 2026

CVE-2026-99021: Linux kernel · regulator: of: fill in supply names in of_regulator_bulk_get_all()

Source GCVE Database

Authoritative record:CVE-2026-99021· Medium

Not known to be exploited · fixed in e2151c29cec73f6cc70abf1c7cbc7b9b202489f5 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 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 e2151c29cec73f6cc70abf1c7cbc7b9b202489f5, a3384ec2516a7cc567bd7c09029282494469b247, 82ac8c4939bdbd064b4f54a580fbe4baf0d60e41 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-pp3v-c45m-5x73

What to do

Upgrade Linux kernel to e2151c29cec73f6cc70abf1c7cbc7b9b202489f5, a3384ec2516a7cc567bd7c09029282494469b247, 82ac8c4939bdbd064b4f54a580fbe4baf0d60e41 or 6.2.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected >=6.1.110 <6.2	Fixed in e2151c29cec73f6cc70abf1c7cbc7b9b202489f5 a3384ec2516a7cc567bd7c09029282494469b247 82ac8c4939bdbd064b4f54a580fbe4baf0d60e41 6.2
LinuxLinux	Affected =6.2	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: of: fill in supply names in of_regulator_bulk_get_all() of_regulator_bulk_get_all() returns an array it allocated itself, and fills in only the consumer of each entry. Every other way of getting a bulk array has the supply name set, because the caller provides it, and the core expects it to be there: regulator_bulk_enable() prints it when a supply fails to enable, so a caller that hands such an array to it dereferences uninitialised memory on that path. Copy each name into the array's own allocation, right behind the entries, so that it shares the array's lifetime and callers still have nothing extra to free. That also retires the fixed 64 byte stack buffer the names were assembled in, which is_supply_name() never bounded the copy against.

References

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