{"id":"CVE-2024-36920","summary":"scsi: mpi3mr: Avoid memcpy field-spanning write WARNING","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Avoid memcpy field-spanning write WARNING\n\nWhen the \"storcli2 show\" command is executed for eHBA-9600, mpi3mr driver\nprints this WARNING message:\n\n  memcpy: detected field-spanning write (size 128) of single field \"bsg_reply_buf-\u003ereply_buf\" at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 (size 1)\n  WARNING: CPU: 0 PID: 12760 at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 mpi3mr_bsg_request+0x6b12/0x7f10 [mpi3mr]\n\nThe cause of the WARN is 128 bytes memcpy to the 1 byte size array \"__u8\nreplay_buf[1]\" in the struct mpi3mr_bsg_in_reply_buf. The array is intended\nto be a flexible length array, so the WARN is a false positive.\n\nTo suppress the WARN, remove the constant number '1' from the array\ndeclaration and clarify that it has flexible length. Also, adjust the\nmemory allocation size to match the change.","modified":"2026-04-02T12:16:33.938397Z","published":"2024-05-30T15:29:15.121Z","related":["ALSA-2024:7000","ALSA-2024:7001","MGASA-2024-0263","MGASA-2024-0266","SUSE-SU-2024:4314-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36920.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/429846b4b6ce9853e0d803a2357bb2e55083adf0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4d2772324f43cf5674ac3dbe3f74a7e656396716"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f0266044dc611563539705bff0b3e1545fbb6aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f09318244c6cafd10aca741b9c01e0a2c362d43a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36920.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36920"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df"},{"fixed":"5f0266044dc611563539705bff0b3e1545fbb6aa"},{"fixed":"f09318244c6cafd10aca741b9c01e0a2c362d43a"},{"fixed":"4d2772324f43cf5674ac3dbe3f74a7e656396716"},{"fixed":"429846b4b6ce9853e0d803a2357bb2e55083adf0"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36920.json"}}],"schema_version":"1.7.5"}