VulnerabilityPublished 18 Oct 2026

CVE-2026-98666: Linux kernel · iio: gyro: adis16136: fix unprotected debugfs reads

Source GCVE Database

Authoritative record:CVE-2026-98666

Not known to be exploited · fixed in d5b0b62e26d7d30e0e16e2d695f2161f7e92a5a5 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 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 d5b0b62e26d7d30e0e16e2d695f2161f7e92a5a5, b62c3944c006cff85dad881ba2948b2f3ef5a626, b53dc6e15aead039bc6a5e08060c96786240c81d +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 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-fw25-7hvg-9627

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 9aaea09b4cbdbe1a80ab3fa1a5d32c3ec61fa6e2, < d5b0b62e26d7d30e0e16e2d695f2161f7e92a5a5	Fixed in d5b0b62e26d7d30e0e16e2d695f2161f7e92a5a5
LinuxLinux	Affected ≥ 9aaea09b4cbdbe1a80ab3fa1a5d32c3ec61fa6e2, < b62c3944c006cff85dad881ba2948b2f3ef5a626	Fixed in b62c3944c006cff85dad881ba2948b2f3ef5a626
LinuxLinux	Affected ≥ 9aaea09b4cbdbe1a80ab3fa1a5d32c3ec61fa6e2, < b53dc6e15aead039bc6a5e08060c96786240c81d	Fixed in b53dc6e15aead039bc6a5e08060c96786240c81d
LinuxLinux	Affected ≥ 9aaea09b4cbdbe1a80ab3fa1a5d32c3ec61fa6e2, < b05e768420352d9051f86c1a1f20f44fa046ba45	Fixed in b05e768420352d9051f86c1a1f20f44fa046ba45
LinuxLinux	Affected ≥ 9aaea09b4cbdbe1a80ab3fa1a5d32c3ec61fa6e2, < 2b498df75d6c29aa3e760127ae0f0003df598b53	Fixed in 2b498df75d6c29aa3e760127ae0f0003df598b53
LinuxLinux	Affected =4.16	Fixed in–

AI-suggested

A fix is available that replaces debugfs_create_file_unsafe() with debugfs_create_file() in the affected driver code. Users should apply the official Linux kernel patches that address this issue. Since this is a kernel-level vulnerability, updating to a patched kernel version is the recommended remediation.

Description

A vulnerability in the Linux kernel's iio gyro driver (adis16136) related to unprotected debugfs reads has been resolved. The issue stems from the serial_number file operations not calling debugfs_file_get(), which is required by debugfs_create_file_unsafe(). This causes debugfs_remove_recursive() to not wait for ongoing reads, potentially leading to use-after-free conditions when the device is unbound. The fix involves replacing debugfs_create_file_unsafe() with debugfs_create_file().

References

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