{"id":"CVE-2026-89846","revision":"31ea9a3146f843a291aa5522e51c4266","records":[{"revision":"31ea9a3146f843a291aa5522e51c4266","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89846","aliases":[],"title":"scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read","description":"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_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.","state":0,"publishedAt":"2026-09-16T10:31:20.306+00:00","modifiedAt":"2026-10-19T08:53:39.169+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/qla2xxx/qla_isr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"125b12861c726e58448bb95d55b04851fb131d1f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"e57ace988bda5693f7b3645f652ea4b4220870ee\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"6b08c0cb110a1fba92f99d655020198489699815\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"be75ab791c9b3baca66c70ce03443afebc83acda\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"ebc41dfc59d190956e0113e8bd90c28f6f21e8b9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"d7f7746ff031ae45724881261804f4bf5317c985\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"f6e8977bce887481b2b2b0e2e14a791270741cfb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5544213be7b4fb693730106a6d70a8cc1aa7cdf6\",\n                            \"lessThan\": \"ca6d880d6c70cb7946e7b3e05d7285f271b6d99e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/qla2xxx/qla_isr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.36\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.36\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f","https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee","https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815","https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda","https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9","https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985","https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb","https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89846","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89846","identifiers":["CVE-2026-89846"]},"retained":false,"historicalAffected":[]}],"coverage":[]}