{"id":"CVE-2026-89858","published":"2026-09-16T11:16:53.693","lastModified":"2026-09-16T11:16:53.693","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates\nlist->count times over the qla_image_version array embedded in that\nbuffer, advancing the image pointer each iteration. count is taken\ndirectly from user input with no upper bound, while only (DMA_POOL_SIZE\n- sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries\nactually fit. A larger count walks the image pointer off the end of the\nstack buffer, reading adjacent kernel stack memory and sending it to the\ndevice via qla2x00_write_sfp().\n\nReject requests whose declared count does not fit in the buffer.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532","tags":[]},{"url":"https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd","tags":[]},{"url":"https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1","tags":[]},{"url":"https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f","tags":[]},{"url":"https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb","tags":[]},{"url":"https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e","tags":[]},{"url":"https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514","tags":[]},{"url":"https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}