CVE-2026-97537: Linux kernel · scsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking
Source GCVE Database
Not known to be exploited · fixed in f35cb67f2092b49d7949065dd56895ed47238f22 : patch Linux kernel soon.
Data as of 30 Oct 2026, 17:33 UTC
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
Disclosed: evidence found.
CVE published 25 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.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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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
- nvd.nist.gov/vuln/detail/CVE-2026-97537 (opens in a new tab)
- git.kernel.org/stable/c/2e6f60adf609c77e828f64e0cd371920bef91c12 (opens in a new tab)
- git.kernel.org/stable/c/34a40e0dff940ac5eba494a69b553ea571e24873 (opens in a new tab)
- git.kernel.org/stable/c/56e25d716833604fd5bff388e472f290bfe793aa (opens in a new tab)
- git.kernel.org/stable/c/81ee4df2a488f0909f7ff563e88a0e0099485a8b (opens in a new tab)
- git.kernel.org/stable/c/94fc0c5b45de2bf3a691619bcfd10b9a49fc647e (opens in a new tab)
- git.kernel.org/stable/c/a9ff85886425355c72749be6090758aa19a89f16 (opens in a new tab)
- git.kernel.org/stable/c/b65e3a82f77b7a63e386623d2ea70d2b5580295a (opens in a new tab)
- git.kernel.org/stable/c/f35cb67f2092b49d7949065dd56895ed47238f22 (opens in a new tab)