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NVD / CVE Program· CNA Linux

CVE-2026-89845: scsi: qla2xxx: Avoid req_q_map double-read in qla2x00_error_entry()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 1b995cf4157465357d66ba096e7cdaafab9972e7, 1c90b74e484ba48f31944fe04963d99e01ac3767, 35124cfa9898b2088ee72859e573e0876aff66fc; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1b995cf4157465357d66ba096e7cdaafab9972e7, 1c90b74e484ba48f31944fe04963d99e01ac3767, 35124cfa9898b2088ee72859e573e0876aff66fc; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Avoid req_q_map double-read in qla2x00_error_entry() qla2x00_error_entry() reads ha->req_q_map[que] twice: once for the NULL check and again when assigning it to req. The map slot is cleared by qla25xx_free_req_que() (ha->req_q_map[que_id] = NULL under mq_lock) during queue teardown, while the response-queue interrupt that drives qla2x00_error_entry() is still registered (the IRQ is released later in qla25xx_free_rsp_que()). If the slot is set to NULL between the two reads, req becomes NULL and is dereferenced. Read the slot once into req and NULL-check the local before use. mq_lock is a mutex and cannot be taken from interrupt context, so the single read plus local check is the appropriate fix for the reported NULL dereference.

—No exploit Fix available
Published
Sep 16, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.4affected
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before c845f2597787ef70159a32566669e308b2807a56affected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before fe04b31e386aee4cc3a18f07462af146037dc389affected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before 1b995cf4157465357d66ba096e7cdaafab9972e7affected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before d79376fbd2a076de82c1cd8aa0b600b300c75a44affected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before 1c90b74e484ba48f31944fe04963d99e01ac3767affected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before 5dd9bec8004ba93cee8b689bf54ce294f59e5e3caffected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before 35124cfa9898b2088ee72859e573e0876aff66fcaffected · git
    • a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b and later · before deb8abde83a799d2501f3977f6d6051000253f5eaffected · git
    • before 3.4not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-89843Sep 16, 2026 · scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak
    0Monitor
  • ← EarlierCVE-2026-89844Sep 16, 2026 · scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition
    35Monitor
  • Later →CVE-2026-89846Sep 16, 2026 · scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read
    36Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux1b995cf4157465357d66ba096e7cdaafab9972e7Vendor (CNA)
Linux Linux1c90b74e484ba48f31944fe04963d99e01ac3767Vendor (CNA)
Linux Linux35124cfa9898b2088ee72859e573e0876aff66fcVendor (CNA)
Linux Linux5dd9bec8004ba93cee8b689bf54ce294f59e5e3cVendor (CNA)
Linux Linuxc845f2597787ef70159a32566669e308b2807a56Vendor (CNA)
Linux Linuxd79376fbd2a076de82c1cd8aa0b600b300c75a44Vendor (CNA)
Linux Linuxdeb8abde83a799d2501f3977f6d6051000253f5eVendor (CNA)
Linux Linuxfe04b31e386aee4cc3a18f07462af146037dc389Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records