CVE-2026-97529scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
- —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: Validate BSG request_len before reading vendor_cmd[] The FC BSG transport allocates job->request via memdup_user() using the exact user-supplied request_len. For FC_BSG_HST_VENDOR, fc_bsg_host_dispatch() only guarantees request_len covers msgcode and vendor_id; it does not account for the vendor_cmd[] flexible array. qla2xxx then reads the command selector vendor_cmd[0] and, in several sub-handlers, vendor_cmd[1]/[2] or structures overlaid on the vendor command area without verifying request_len. A caller holding CAP_SYS_RAWIO can submit a short request whose vendor_id matches the host, triggering out-of-bounds heap reads (KASAN-detectable, and able to mis-select a command or panic). Add a central guard in qla2x00_process_vendor_specific() so the selector is always in bounds, restrict the early vendor_cmd[0] read in qla24xx_bsg_request() to sufficiently long vendor messages, and add request_len checks to the sub-handlers that read further: qla24xx_proc_fcp_prio_cfg_cmd(), qla2x00_process_loopback(), qla84xx_reset(), qla84xx_updatefw(), qla2x00_read_optrom(), qla2x00_update_optrom(), qlafx00_mgmt_cmd() and qla28xx_validate_flash_image().
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 (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < a0c6842ec825a91693626dbd9a4c54f2b9dc15ea
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < 0540676f5fefdff748b8d57a927b143e31dc21fd
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < d3762cc777544a4cbc4635a787e1cfc021e1a615
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < 5f33efe04658968b6b3f432f904d5f1f74c12286
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < ef63922d8bdea03de1804af39a6b12212acb1be2
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < 740f3458a4798af54aaf8cf63e797d407e8b6d3b
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < f75bff451a2fac5aed82f9641df1e9a42c5a899d
- affected 01e0e15c8b3b32e006e5cccac10c8b377ac3d803 – < 4cf38dd9465736141263ebb63375868311a0ec81
- affected 4.10
- unaffected < 4.10
- 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/a0c6842ec825a91693626dbd9a4c54f2b9dc15ea (opens in a new tab)
- https://git.kernel.org/stable/c/0540676f5fefdff748b8d57a927b143e31dc21fd (opens in a new tab)
- https://git.kernel.org/stable/c/d3762cc777544a4cbc4635a787e1cfc021e1a615 (opens in a new tab)
- https://git.kernel.org/stable/c/5f33efe04658968b6b3f432f904d5f1f74c12286 (opens in a new tab)
- https://git.kernel.org/stable/c/ef63922d8bdea03de1804af39a6b12212acb1be2 (opens in a new tab)
- https://git.kernel.org/stable/c/740f3458a4798af54aaf8cf63e797d407e8b6d3b (opens in a new tab)
- https://git.kernel.org/stable/c/f75bff451a2fac5aed82f9641df1e9a42c5a899d (opens in a new tab)
- https://git.kernel.org/stable/c/4cf38dd9465736141263ebb63375868311a0ec81 (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-2026-86837 (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)
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[](https://cveledger.app/cve/CVE-2026-97529)Record last updated .