CVE-2026-89858 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20506623
- published5 Oct 2026
- disclosed16 Sept 2026
Introduced: 16 Sep 2026
NewCVE-2026-89858 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2026-89858
- https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532
- https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd
- https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1
- https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f
- https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb
- https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e
- https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514
- https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0