{"id":"CVE-2026-99157","revision":"b49980afe5084e9c8284e431d967c62e","records":[{"revision":"b49980afe5084e9c8284e431d967c62e","observedAt":"2026-10-28T11:27:43.363+00:00","statement":{"source":"cve-program","id":"CVE-2026-99157","aliases":[],"title":"scsi: bsg: Pass reply_len to bsg_setup_queue() to fit UFS ARPMB replies","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bsg: Pass reply_len to bsg_setup_queue() to fit UFS ARPMB replies\n\nbsg-lib allocates a 96-byte (SCSI_SENSE_BUFFERSIZE) reply buffer per\njob, but struct ufs_rpmb_reply is 104 bytes: a 40-byte struct\nufs_bsg_reply followed by a 64-byte EHS. When an Advanced RPMB command\nreturns an EHS, ufshcd_advanced_rpmb_req_handler() copies it right after\nthe 40-byte header and writes 8 bytes past the end of the buffer.\n\nLet each BSG transport pass its reply buffer size to bsg_setup_queue()\nand have ufs_bsg request sizeof(struct ufs_rpmb_reply), so the full\nreply reaches user space. Other transports keep SCSI_SENSE_BUFFERSIZE.","state":0,"publishedAt":"2026-10-28T10:35:11.192+00:00","modifiedAt":"2026-10-28T10:35:11.192+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                        \"block/bsg-lib.c\",\n                        \"drivers/scsi/mpi3mr/mpi3mr_app.c\",\n                        \"drivers/scsi/scsi_transport_fc.c\",\n                        \"drivers/scsi/scsi_transport_iscsi.c\",\n                        \"drivers/scsi/scsi_transport_sas.c\",\n                        \"drivers/ufs/core/ufs_bsg.c\",\n                        \"include/linux/bsg-lib.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6ff265fc5ef660499e0edc4641647e99eed3f519\",\n                            \"lessThan\": \"2effbe746452c108188f85a6951f2b0b65653840\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6ff265fc5ef660499e0edc4641647e99eed3f519\",\n                            \"lessThan\": \"7a755f6d47b811d3abd93c1642ce5e63894540b8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6ff265fc5ef660499e0edc4641647e99eed3f519\",\n                            \"lessThan\": \"ec6b083915e8146e147314a5f4f1285d07b57bfc\",\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                        \"block/bsg-lib.c\",\n                        \"drivers/scsi/mpi3mr/mpi3mr_app.c\",\n                        \"drivers/scsi/scsi_transport_fc.c\",\n                        \"drivers/scsi/scsi_transport_iscsi.c\",\n                        \"drivers/scsi/scsi_transport_sas.c\",\n                        \"drivers/ufs/core/ufs_bsg.c\",\n                        \"include/linux/bsg-lib.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.59\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.13\",\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":[],"references":["https://git.kernel.org/stable/c/2effbe746452c108188f85a6951f2b0b65653840","https://git.kernel.org/stable/c/7a755f6d47b811d3abd93c1642ce5e63894540b8","https://git.kernel.org/stable/c/ec6b083915e8146e147314a5f4f1285d07b57bfc"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99157","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99157","identifiers":["CVE-2026-99157"]},"retained":false,"historicalAffected":[]}],"coverage":[]}