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NVD / CVE Program· CNA Linux

CVE-2026-89848: scsi: qla2xxx: Quiesce response IRQ before freeing request queue

Noroxi assessment

Priority: Monitor (action score 32/100)

  • 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: 0.58% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 0a005dcc5e9bf7b31a45422b10f2765b25161389, 10e9f05f7fd0a103886a867ec8afe621fe4b906a, 1486cc18be3e2b4c2a730f4a1b0448d009381b3d.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0a005dcc5e9bf7b31a45422b10f2765b25161389, 10e9f05f7fd0a103886a867ec8afe621fe4b906a, 1486cc18be3e2b4c2a730f4a1b0448d009381b3d 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: Quiesce response IRQ before freeing request queue qla2xxx_delete_qpair() deletes the request queue before the response queue. qla25xx_delete_req_que() frees the request queue memory (kfree(req) in qla25xx_free_req_que()), but the response-queue MSI-X is only released later, in qla25xx_free_rsp_que(). In that window the response interrupt can still fire, qla2xxx_msix_rsp_q() queues qpair->q_work, and qla_do_work() -> qla24xx_process_response_queue() dereferences the now-freed rsp->req (LOGINOUT/CT/ELS entries and the status path), a use-after-free. The cancel_work_sync() added for the qpair teardown lives in the response free path, which runs after the request queue is already freed, so it does not protect rsp->req. Release the response-queue interrupt and flush qpair->q_work before deleting the request queue, so no late completion can reach the freed request queue. Clearing have_irq makes the subsequent qla25xx_free_rsp_que() skip its free_irq(), and the firmware queue-delete order (request then response) is preserved; the request-delete mailbox completes on the default vector and is unaffected by dropping the qpair response interrupt early.

HighCVSS 8.1 · v3.1—No exploit Fix available
Published
Sep 16, 2026
Updated
Oct 30, 2026
EPSS
0.5% · 48th percentile
CWE
—

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CNA vs NVD score

NVD
—
CNA · Linux
8.1
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

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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

    • 4.10affected
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 730a18768b27582636b5af343069c30809b763a2affected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before be68aef64ab2e633867c4ac946d16644c306fc3daffected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 0a005dcc5e9bf7b31a45422b10f2765b25161389affected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 7ac5be2a8609679fc6bbfea881360444a5ce8202affected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 1486cc18be3e2b4c2a730f4a1b0448d009381b3daffected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 10e9f05f7fd0a103886a867ec8afe621fe4b906aaffected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 157ca7d1af45f87aa14a286754f19c3f72386988affected · git
    • d74595278f4ab192af66d9e60a9087464638beee and later · before 505753ec2594c6af09a601f0dd60be7d840c1d2daffected · git
    • before 4.10not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
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-2026-89846Sep 16, 2026 · scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read
    36Monitor
  • ← EarlierCVE-2026-89847Sep 16, 2026 · scsi: qla2xxx: Avoid double completion in async IOCB timeout
    39Monitor
  • Later →CVE-2026-89849Sep 16, 2026 · scsi: qla2xxx: Reject non-SCSI SRB on status IOCB fast path
    35Monitor

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 Linux0a005dcc5e9bf7b31a45422b10f2765b25161389Vendor (CNA)
Linux Linux10e9f05f7fd0a103886a867ec8afe621fe4b906aVendor (CNA)
Linux Linux1486cc18be3e2b4c2a730f4a1b0448d009381b3dVendor (CNA)
Linux Linux157ca7d1af45f87aa14a286754f19c3f72386988Vendor (CNA)
Linux Linux505753ec2594c6af09a601f0dd60be7d840c1d2dVendor (CNA)
Linux Linux730a18768b27582636b5af343069c30809b763a2Vendor (CNA)
Linux Linux7ac5be2a8609679fc6bbfea881360444a5ce8202Vendor (CNA)
Linux Linuxbe68aef64ab2e633867c4ac946d16644c306fc3dVendor (CNA)
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

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

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