In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

qla2x00_update_fru_versions() copies the user-supplied BSG request into
a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates
list->count times over the qla_image_version array embedded in that
buffer, advancing the image pointer each iteration. count is taken
directly from user input with no upper bound, while only (DMA_POOL_SIZE
- sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries
actually fit. A larger count walks the image pointer off the end of the
stack buffer, reading adjacent kernel stack memory and sending it to the
device via qla2x00_write_sfp().

Reject requests whose declared count does not fit in the buffer.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4817-1 linux-6.12 security update
Debian DLA Debian DLA DLA-4841-1 linux security update
Debian DSA Debian DSA DSA-6528-1 linux security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 16 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.
Title scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-19T08:53:50.969Z

Reserved: 2026-09-11T19:38:34.771Z

Link: CVE-2026-89858

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-16T11:16:53.693

Modified: 2026-10-19T09:18:30.243

Link: CVE-2026-89858

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T21:45:06Z

Weaknesses

No weakness.