VulnerabilityPublished 25 Sep 2026Updated 30 Oct 2026

CVE-2026-97529: Linux kernel · scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]

Source GCVE Database

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Authoritative record:CVE-2026-97529· Medium

Not known to be exploited · fixed in f75bff451a2fac5aed82f9641df1e9a42c5a899d : update Linux kernel when convenient.

Data as of 30 Oct 2026, 17:48 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in f75bff451a2fac5aed82f9641df1e9a42c5a899d, ef63922d8bdea03de1804af39a6b12212acb1be2, d3762cc777544a4cbc4635a787e1cfc021e1a615 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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-f28v-rr9c-w68g

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < f75bff451a2fac5aed82f9641df1e9a42c5a899d	Fixed in f75bff451a2fac5aed82f9641df1e9a42c5a899d
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < ef63922d8bdea03de1804af39a6b12212acb1be2	Fixed in ef63922d8bdea03de1804af39a6b12212acb1be2
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < d3762cc777544a4cbc4635a787e1cfc021e1a615	Fixed in d3762cc777544a4cbc4635a787e1cfc021e1a615
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < a0c6842ec825a91693626dbd9a4c54f2b9dc15ea	Fixed in a0c6842ec825a91693626dbd9a4c54f2b9dc15ea
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < 0540676f5fefdff748b8d57a927b143e31dc21fd	Fixed in 0540676f5fefdff748b8d57a927b143e31dc21fd
LinuxLinux	Affected ≥ 01e0e15c8b3b32e006e5cccac10c8b377ac3d803, < 740f3458a4798af54aaf8cf63e797d407e8b6d3b	Fixed in 740f3458a4798af54aaf8cf63e797d407e8b6d3b

AI-suggested

A patch has been applied to the Linux kernel qla2xxx driver that adds proper validation of request_len before accessing vendor_cmd[]. Users should update to a kernel version containing this fix once available. Until then, restrict access to CAP_SYS_RAWIO privileges to trusted users only.

Description

A vulnerability in the Linux kernel's qla2xxx SCSI driver allows out-of-bounds heap reads due to improper validation of the BSG request length before accessing the vendor_cmd[] array. This can be triggered by a caller with CAP_SYS_RAWIO privileges submitting a crafted short request, potentially causing kernel panic or memory corruption.

Impact

An attacker with CAP_SYS_RAWIO privileges can cause out-of-bounds heap reads in kernel memory, which may lead to kernel panic or misinterpretation of commands. This could result in denial of service or potential kernel memory disclosure. No evidence of exploitation in the wild is known.

Summary

The Linux kernel's qla2xxx driver for Fibre Channel (FC) BSG transport improperly validates the request_len field before reading from the vendor_cmd[] flexible array. The FC BSG transport allocates job->request based on the user-supplied request_len, but the driver reads vendor_cmd elements without ensuring the request length covers these accesses. This can lead to out-of-bounds heap reads when a privileged user submits a short request with a matching vendor_id. The fix adds centralized bounds checking in qla2x00_process_vendor_specific(), restricts early vendor_cmd[0] reads to sufficiently long messages, and adds request_len validation in multiple sub-handlers that access vendor_cmd[].

References

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