VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-92480: Linux kernel · scsi: ufs: core: Validate string descriptors

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4, d96e83d028d7d8762e424e49c671d49ac2ecf14f, 566109f1ee4e389b4effab43b0ce1fdab302e9de +2

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 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 ≥ 4b828fe156a662a4b6135019bf077040340f299b, < f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4	Fixed in f3480c59f4ce97d831e9d06f5a2b9c20547ed1a4
LinuxLinux	Affected ≥ 4b828fe156a662a4b6135019bf077040340f299b, < d96e83d028d7d8762e424e49c671d49ac2ecf14f	Fixed in d96e83d028d7d8762e424e49c671d49ac2ecf14f
LinuxLinux	Affected ≥ 4b828fe156a662a4b6135019bf077040340f299b, < 566109f1ee4e389b4effab43b0ce1fdab302e9de	Fixed in 566109f1ee4e389b4effab43b0ce1fdab302e9de
LinuxLinux	Affected ≥ 4b828fe156a662a4b6135019bf077040340f299b, < 66da25277256b6bf4c3fdbf3c9bfd43324c9cf25	Fixed in 66da25277256b6bf4c3fdbf3c9bfd43324c9cf25
LinuxLinux	Affected ≥ 4b828fe156a662a4b6135019bf077040340f299b, < 02dd1a65dff842d9360a38ebe243dc8f6adbbaf5	Fixed in 02dd1a65dff842d9360a38ebe243dc8f6adbbaf5
LinuxLinux	Affected =5.4	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Validate string descriptors The string descriptor length includes a two-byte header while the UTF-16 payload starts after it. utf16s_to_utf8s() expects a count of UTF-16 code units, not bytes. Passing the payload byte count can make it read beyond the descriptor buffer. Validate that the payload has an even byte count, pass a code-unit count to the converter, and allocate sufficient UTF-8 output space. The raw string buffer starts after the descriptor header but its size is bLength. Copying bLength bytes from that pointer can read beyond the response buffer. Allocate a zeroed bLength-sized buffer and copy only the UTF-16 payload. This preserves the raw buffer size consumed by the RPMB device-ID ABI while avoiding the overread.

References

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