Strix
64.1K

CVE-2026-89858

Unknown

Last modified

CVE-2026-89858 is a vulnerability of currently unknown severity. 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.

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < af733bbfcf667af1871a2735fba2835b0da71efb; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < a9706d5e754e77515a92bb532bd0d73644979a1f; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < 7e3154c97ec15460f715dbbe4097c255cce110b1; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < 047f1f7ee6f85bde28abfdda9fa550191ddc0532; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < f93e8039e6fd54a3c027c6184daf00b745b576a0; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < 7b22b4cb8822805cef7ba618da6f76e1474d68bd; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514; >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4, < de62cf265dbe309f34f144a6cdbca9240317727e
LinuxLinux3.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89858?
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.
How severe is CVE-2026-89858?
Severity scoring for CVE-2026-89858 is pending analysis.
How do I fix CVE-2026-89858?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-89858?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST