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NVD / CVE Program· CNA Linux

CVE-2026-89853: scsi: qla2xxx: Fix FCE trace use-after-free during firmware dump

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 41ef7edde27ac87d55ffc703da44e78aa8c2e896, 423487f03e325b8665d20a2a3171fe012b1a4fa9, 5.10.270; 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 41ef7edde27ac87d55ffc703da44e78aa8c2e896, 423487f03e325b8665d20a2a3171fe012b1a4fa9, 5.10.270; 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: Fix FCE trace use-after-free during firmware dump qla2x00_free_fce_trace() freed and cleared ha->fce while holding only fce_mutex. The firmware-dump consumers qla27xx_fwdt_entry_t264() and qla25xx_copy_fce() read ha->fce (NULL check followed by a copy of the buffer) under hardware_lock and never take fce_mutex. A debugfs FCE disable could therefore free the DMA buffer between a dump's NULL check and its copy, resulting in a use-after-free. Unpublish ha->fce under hardware_lock, then release the lock and free the DMA buffer (dma_free_coherent() may sleep). A concurrent dump either completes its check and copy with the buffer still valid, or observes ha->fce == NULL and skips it.

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

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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

    • a89872a61b914378591f16e428dd221c5e2059b2, 6.14affected
    • 3a5a789494875376d1f8063ec5ecc6beafda2ce1 and later · before 423487f03e325b8665d20a2a3171fe012b1a4fa9affected · git
    • 73d3d3c66f108bc47922490f8500842530139975 and later · before 7bd308cd893e8cce023d03a40a2f0adccaff0175affected · git
    • 57c029cab0d908942e3ed9ff9fd0361144d01944 and later · before edc464a4fc96e2720d166e7cc7e7a6827b086760affected · git
    • 217230bc8796a922d5b15a9a94ec4414b2d2b3e3 and later · before 6003e79148eca73d7cafb076f5be47e234d543d0affected · git
    • 2cf3c3fe9a11aa168e80c966494c58548b9aed5d and later · before ef9b89f6c92274c3670403fd06130ca25f685050affected · git
    • 841df27d619ee1f5ca6473e15227b39d6136562d and later · before 8e7a26931b6111583cfeaf49c068f26524dc3af2affected · git
    • 841df27d619ee1f5ca6473e15227b39d6136562d and later · before 41ef7edde27ac87d55ffc703da44e78aa8c2e896affected · git
    • 841df27d619ee1f5ca6473e15227b39d6136562d and later · before 53298efcbbb0f0438366d45cb7ed7e6d93dd5531affected · git
    • 5.10.235 and later · before 5.10.270affected · 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-2026-89851Sep 16, 2026 · scsi: qla2xxx: Fix FCE trace enable parsing in debugfs
    0Monitor
  • ← EarlierCVE-2026-89852Sep 16, 2026 · scsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state()
    0Monitor
  • Later →CVE-2026-89854Sep 16, 2026 · scsi: qla2xxx: Fix cs84xx use-after-free on host teardown
    31Monitor

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 Linux41ef7edde27ac87d55ffc703da44e78aa8c2e896Vendor (CNA)
Linux Linux423487f03e325b8665d20a2a3171fe012b1a4fa9Vendor (CNA)
Linux Linux5.10.270Vendor (CNA)
Linux Linux5.15.221Vendor (CNA)
Linux Linux53298efcbbb0f0438366d45cb7ed7e6d93dd5531Vendor (CNA)
Linux Linux6.1.188Vendor (CNA)
Linux Linux6.12.110Vendor (CNA)
Linux Linux6.14Vendor (CNA)
Linux Linux6.6.157Vendor (CNA)
Linux Linux6003e79148eca73d7cafb076f5be47e234d543d0Vendor (CNA)
Linux Linux7bd308cd893e8cce023d03a40a2f0adccaff0175Vendor (CNA)
Linux Linux8e7a26931b6111583cfeaf49c068f26524dc3af2Vendor (CNA)
Linux Linuxedc464a4fc96e2720d166e7cc7e7a6827b086760Vendor (CNA)
Linux Linuxef9b89f6c92274c3670403fd06130ca25f685050Vendor (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✗ → ✓

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References

Show all references (7 more)

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

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