VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-90112: Linux kernel · net: qlcnic: validate unified ROM sections before loading

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in b9efc177703a03312cc2f6e6a4bbd4595e8158a1 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in b9efc177703a03312cc2f6e6a4bbd4595e8158a1, 684773c4d26f7f2211beb31fb90629216f8a61f5, 43451ec94fb67ae1715faf29e9e6ab20ecbd42f4 +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 ≥ af19b49152bdb68fda894183e88096d6d1aa5c3d, < b9efc177703a03312cc2f6e6a4bbd4595e8158a1	Fixed in b9efc177703a03312cc2f6e6a4bbd4595e8158a1
LinuxLinux	Affected ≥ af19b49152bdb68fda894183e88096d6d1aa5c3d, < 684773c4d26f7f2211beb31fb90629216f8a61f5	Fixed in 684773c4d26f7f2211beb31fb90629216f8a61f5
LinuxLinux	Affected ≥ af19b49152bdb68fda894183e88096d6d1aa5c3d, < 43451ec94fb67ae1715faf29e9e6ab20ecbd42f4	Fixed in 43451ec94fb67ae1715faf29e9e6ab20ecbd42f4
LinuxLinux	Affected ≥ af19b49152bdb68fda894183e88096d6d1aa5c3d, < 5e8076e4e4124dae75a3e080ddc20404700d7585	Fixed in 5e8076e4e4124dae75a3e080ddc20404700d7585
LinuxLinux	Affected ≥ af19b49152bdb68fda894183e88096d6d1aa5c3d, < 4be733a450c86938c91f9c70a56802ef5069764c	Fixed in 4be733a450c86938c91f9c70a56802ef5069764c
LinuxLinux	Affected =2.6.34	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: net: qlcnic: validate unified ROM sections before loading The unified ROM parser reads directory, product, and data-descriptor fields from the firmware file. Existing validation forms table and data ends with unchecked additions and multiplications. Malformed values can wrap before they are compared with the firmware size. The parser also dereferences typed pointers at firmware-controlled offsets. Valid descriptor extents alone are insufficient for the consumers. The loader reads a fixed-size bootloader regardless of its declared size, the version parser assumes a 17-byte tail, and a partial final firmware word is read as a full u64. A truncated image can therefore make the driver read beyond the firmware allocation during validation or loading. Replace the pointer-returning parser with bounded range helpers. Validate table entry sizes, descriptor indices, section ranges, the fixed bootloader load length, and the version tail before exposing any section. Read all file fields with unaligned little-endian accessors and assemble a partial final word from only the bytes that remain. Apply the same range checks to the legacy image before reading its fixed fields.

References

Community reviews

Loading reviews…