- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking qla25xx_free_req_que() and qla25xx_free_rsp_que() have two pre-existing bugs exposed on the error path of qla25xx_create_{req,rsp}_que(): 1. When dma_alloc_coherent() fails during queue creation, the error path calls the free function with req->ring / rsp->ring still NULL (from kzalloc). The unconditional dma_free_coherent() with a NULL cpu_addr is undefined behavior and can panic. 2. The free functions clear req_qid_map / rsp_qid_map under vport_lock, but the create functions protect the same bitmaps with mq_lock. This provides no mutual exclusion. Additionally, the create error path clears the bit and releases mq_lock before calling the free function, creating a window where another thread can allocate the same que_id and have its ha->req_q_map entry clobbered by the subsequent lockless NULL assignment in the free function. Fix by: - Guarding dma_free_coherent() with a NULL check on the ring pointer. - Using mq_lock (the lock held by all creators) in the free functions to atomically NULL the map entry and clear the bitmap bit. - Removing the now-redundant clear_bit blocks from the create error paths since the free functions handle it atomically.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 35 days later
· 35 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < b65e3a82f77b7a63e386623d2ea70d2b5580295a
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < a9ff85886425355c72749be6090758aa19a89f16
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < 81ee4df2a488f0909f7ff563e88a0e0099485a8b
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < 2e6f60adf609c77e828f64e0cd371920bef91c12
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < 56e25d716833604fd5bff388e472f290bfe793aa
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < f35cb67f2092b49d7949065dd56895ed47238f22
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < 94fc0c5b45de2bf3a691619bcfd10b9a49fc647e
- affected 73208dfd7ab19f379d73e8a0fbf30f92c203e5e8 – < 34a40e0dff940ac5eba494a69b553ea571e24873
- affected 2.6.29
- unaffected < 2.6.29
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/b65e3a82f77b7a63e386623d2ea70d2b5580295a (opens in a new tab)
- https://git.kernel.org/stable/c/a9ff85886425355c72749be6090758aa19a89f16 (opens in a new tab)
- https://git.kernel.org/stable/c/81ee4df2a488f0909f7ff563e88a0e0099485a8b (opens in a new tab)
- https://git.kernel.org/stable/c/2e6f60adf609c77e828f64e0cd371920bef91c12 (opens in a new tab)
- https://git.kernel.org/stable/c/56e25d716833604fd5bff388e472f290bfe793aa (opens in a new tab)
- https://git.kernel.org/stable/c/f35cb67f2092b49d7949065dd56895ed47238f22 (opens in a new tab)
- https://git.kernel.org/stable/c/94fc0c5b45de2bf3a691619bcfd10b9a49fc647e (opens in a new tab)
- https://git.kernel.org/stable/c/34a40e0dff940ac5eba494a69b553ea571e24873 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86845 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97537)Record last updated .