{"id":"CVE-2026-89846","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_inf…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_inf…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < 125b12861c726e58448bb95d55b04851fb131d1f","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < e57ace988bda5693f7b3645f652ea4b4220870ee","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < 6b08c0cb110a1fba92f99d655020198489699815","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < be75ab791c9b3baca66c70ce03443afebc83acda","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < d7f7746ff031ae45724881261804f4bf5317c985","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < f6e8977bce887481b2b2b0e2e14a791270741cfb","Linux >= 5544213be7b4fb693730106a6d70a8cc1aa7cdf6 < ca6d880d6c70cb7946e7b3e05d7285f271b6d99e","Linux 2.6.36"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:18:12.823","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89846","references":[{"url":"https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.995Z","epss":0.00695,"epssPercentile":0.51127,"slug":"CVE-2026-89846","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read\n\nIn qla2x00_status_entry(), the FWI2 status path advances sense_data and\nshrinks par_sense_len by rsp_info_len:\n\n\tif (IS_FWI2_CAPABLE(ha)) {\n\t\tsense_data += rsp_info_len;\n\t\tpar_sense_len -= rsp_info_len;\n\t}\n\nrsp_info_len is a 32-bit value taken directly from the target's FCP\nresponse (sf.rsp_data_len), while par_sense_len is the IOCB data area\nsize (28 bytes for 24xx, 60 bytes for 29xx). A hostile or buggy target\nreporting an rsp_info_len larger than par_sense_len makes the unsigned\nsubtraction underflow to a huge value and advances sense_data out of\nbounds.\n\nThe underflowed par_sense_len then defeats the cap in\nqla2x00_handle_sense():\n\n\tif (sense_len > par_sense_len)\n\t\tsense_len = par_sense_len;\n\tmemcpy(cp->sense_buffer, sense_data, sense_len);\n\nso the memcpy reads up to SCSI_SENSE_BUFFERSIZE bytes from the\nout-of-bounds sense_data pointer, leaking adjacent response-ring/heap\nmemory into the command's sense buffer.\n\nClamp rsp_info_len to par_sense_len before the subtraction so\npar_sense_len can never underflow and sense_data stays within the IOCB\ndata area. The fix sits before the comp_status switch, covering both\nqla2x00_handle_sense() call sites.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":205206,"id":"CVE-2026-89846","ts":1789570705725,"field":"cvss","old":null,"new":"9.1"},{"seq":205205,"id":"CVE-2026-89846","ts":1789570705725,"field":"severity","old":"none","new":"critical"}]}