VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98833: Linux kernel · mtd: core: call _get_device() with the master MTD

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f971f1c63cf71579258360a12bd185bc1cd1a043 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity

Unrated

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 f971f1c63cf71579258360a12bd185bc1cd1a043, dc482a281a19a7d7e91ad1b2d551bb301c54d0e6, d94731cafa57e2c986ff391122d1494e5a3f3c3f +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.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 46b5889cc2c54bac7d7e727a44d28a298df23cef, < f971f1c63cf71579258360a12bd185bc1cd1a043	Fixed in f971f1c63cf71579258360a12bd185bc1cd1a043
LinuxLinux	Affected ≥ 46b5889cc2c54bac7d7e727a44d28a298df23cef, < dc482a281a19a7d7e91ad1b2d551bb301c54d0e6	Fixed in dc482a281a19a7d7e91ad1b2d551bb301c54d0e6
LinuxLinux	Affected ≥ 46b5889cc2c54bac7d7e727a44d28a298df23cef, < d94731cafa57e2c986ff391122d1494e5a3f3c3f	Fixed in d94731cafa57e2c986ff391122d1494e5a3f3c3f
LinuxLinux	Affected ≥ 46b5889cc2c54bac7d7e727a44d28a298df23cef, < 95c8f36293c22d450c371167ad4f9a5bbadc7539	Fixed in 95c8f36293c22d450c371167ad4f9a5bbadc7539
LinuxLinux	Affected ≥ 46b5889cc2c54bac7d7e727a44d28a298df23cef, < 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1	Fixed in 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1
LinuxLinux	Affected =5.7	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: core: call _get_device() with the master MTD __get_mtd_device() calls the master's _get_device() callback with mtd, which may be a partition. __put_mtd_device() passes the master. This breaks gluebi partitions because gluebi_get_device() uses container_of() and therefore requires the master MTD. Pass the master to _get_device(), matching _put_device().

References

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