scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 6 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.112, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97529
- 2026-10-03 Alias added: GHSA-f28v-rr9c-w68g
- 2026-10-03 Fix available: Linux/[email protected], Linux/Linux@ef63922d8bdea03de1804af39a6b12212acb1be2 · CNA
- 2026-10-03 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@5f33efe04658968b6b3f432f904d5f1f74c12286, Linux/[email protected] · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-30 Fix available: Linux/Linux@0540676f5fefdff748b8d57a927b143e31dc21fd, Linux/[email protected], Linux/[email protected] +3 · CNA
- 2026-10-30 3 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/a0c6842ec825a91693626dbd9a4c54f2b9dc15ea
- https://git.kernel.org/stable/c/0540676f5fefdff748b8d57a927b143e31dc21fd
- https://git.kernel.org/stable/c/d3762cc777544a4cbc4635a787e1cfc021e1a615
- https://git.kernel.org/stable/c/5f33efe04658968b6b3f432f904d5f1f74c12286
- https://git.kernel.org/stable/c/ef63922d8bdea03de1804af39a6b12212acb1be2
- https://git.kernel.org/stable/c/740f3458a4798af54aaf8cf63e797d407e8b6d3b
- https://git.kernel.org/stable/c/f75bff451a2fac5aed82f9641df1e9a42c5a899d
- https://git.kernel.org/stable/c/4cf38dd9465736141263ebb63375868311a0ec81
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Sources
- CVE-2026-97529 · CVE Program
- CVE-2026-97529 · NVD
- FIRST EPSS
- GHSA-f28v-rr9c-w68g · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97529 · Red Hat security data · CC BY 4.0
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