VulnerabilityPublished 16 Sep 2026Updated 30 Oct 2026

CVE-2026-89859: Linux kernel · scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak

Source GCVE Database

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Authoritative record:CVE-2026-89859· Medium

Not known to be exploited · fixed in eeef4fa993b3f962de9b45999f12ff25a5c79ce7 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 19:20 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 eeef4fa993b3f962de9b45999f12ff25a5c79ce7, d6e2411516bb95e52cb74c9c56b60ad2548a2730, c3e4c716909a053391b06a9a816c8588b652e3d2 +5

Exploitation evidence

Disclosed: evidence found.
CVE published 16 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-77jx-g549-23wh

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < eeef4fa993b3f962de9b45999f12ff25a5c79ce7	Fixed in eeef4fa993b3f962de9b45999f12ff25a5c79ce7
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < d6e2411516bb95e52cb74c9c56b60ad2548a2730	Fixed in d6e2411516bb95e52cb74c9c56b60ad2548a2730
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < c3e4c716909a053391b06a9a816c8588b652e3d2	Fixed in c3e4c716909a053391b06a9a816c8588b652e3d2
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < a152edab3854f01dd2daf3eaf8f32cbabdb3834e	Fixed in a152edab3854f01dd2daf3eaf8f32cbabdb3834e
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < 504b177ad58c45be7e1cfa81f9b42f7f040737c5	Fixed in 504b177ad58c45be7e1cfa81f9b42f7f040737c5
LinuxLinux	Affected ≥ ec89146215d124c429bff84b498dccdc4919ffa7, < 9fc03be982763a131913f84fe73b240ae45bca37	Fixed in 9fc03be982763a131913f84fe73b240ae45bca37

AI-suggested

A fix is available that replaces the non-zeroing kmalloc_obj() allocation with kzalloc_obj(), which zeroes the diagnostics buffer before use. Users should apply the official Linux kernel patch that implements this change to prevent the information leak.

Description

A vulnerability in the Linux kernel's qla2xxx SCSI driver allows uninitialized kernel heap memory to be leaked to user space due to improper zeroing of the diagnostics buffer. This occurs because the buffer allocated with kmalloc_obj() is not zeroed before copying data back to user space, exposing potentially sensitive kernel memory contents.

References

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