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CVE-2026-89858

scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in af733bbfcf667af1871a2735fba2835b0da71efb; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in a9706d5e754e77515a92bb532bd0d73644979a1f; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in 7e3154c97ec15460f715dbbe4097c255cce110b1; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in 047f1f7ee6f85bde28abfdda9fa550191ddc0532; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in f93e8039e6fd54a3c027c6184daf00b745b576a0; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in 7b22b4cb8822805cef7ba618da6f76e1474d68bd; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514; From 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 · fixed in de62cf265dbe309f34f144a6cdbca9240317727e

  • Linux Linux

    3.2

  • KernelLinux

    From 3.2.0 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8

git.kernel.org