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VulnerabilityPublished Updated

CVE-2026-97537: Linux kernel · scsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking

Source GCVE Database

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Authoritative record:CVE-2026-97537· High

Not known to be exploited · fixed in f35cb67f2092b49d7949065dd56895ed47238f22 : patch Linux kernel soon.

Data as of 30 Oct 2026, 17:33 UTC

Severity
High

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

Thin evidence

One scorer or none
Patch
Available – fixed in f35cb67f2092b49d7949065dd56895ed47238f22, b65e3a82f77b7a63e386623d2ea70d2b5580295a, a9ff85886425355c72749be6090758aa19a89f16 +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < f35cb67f2092b49d7949065dd56895ed47238f22
Fixed in
  • f35cb67f2092b49d7949065dd56895ed47238f22
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < b65e3a82f77b7a63e386623d2ea70d2b5580295a
Fixed in
  • b65e3a82f77b7a63e386623d2ea70d2b5580295a
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < a9ff85886425355c72749be6090758aa19a89f16
Fixed in
  • a9ff85886425355c72749be6090758aa19a89f16
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < 94fc0c5b45de2bf3a691619bcfd10b9a49fc647e
Fixed in
  • 94fc0c5b45de2bf3a691619bcfd10b9a49fc647e
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < 81ee4df2a488f0909f7ff563e88a0e0099485a8b
Fixed in
  • 81ee4df2a488f0909f7ff563e88a0e0099485a8b
LinuxLinuxAffected
  • ≥ 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8, < 56e25d716833604fd5bff388e472f290bfe793aa
Fixed in
  • 56e25d716833604fd5bff388e472f290bfe793aa

AI-suggested

Apply the official Linux kernel patch that adds a NULL check before calling dma_free_coherent(), ensures consistent locking with mq_lock in free functions, and removes redundant bitmap clearing in error paths. Since this is a kernel-level vulnerability, updating to a fixed kernel version is the recommended remediation.

Description

A vulnerability in the Linux kernel's qla2xxx SCSI driver involves improper handling of dma_free_coherent() calls and bitmap locking during queue teardown. Specifically, a NULL pointer can be passed to dma_free_coherent(), causing undefined behavior and potential kernel panic. Additionally, inconsistent locking on bitmap structures can lead to race conditions and data corruption during queue creation and teardown.

References

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