{"schema_version":"1.9.0","id":"CVE-2022-21546","published":"2025-05-02T21:52:09.864Z","modified":"2026-08-12T03:51:44.107484030Z","related":["SUSE-SU-2025:02334-1"],"summary":"scsi: target: Fix WRITE_SAME No Data Buffer crash","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: Fix WRITE_SAME No Data Buffer crash\n\nIn newer version of the SBC specs, we have a NDOB bit that indicates there\nis no data buffer that gets written out. If this bit is set using commands\nlike \"sg_write_same --ndob\" we will crash in target_core_iblock/file's\nexecute_write_same handlers when we go to access the se_cmd->t_data_sg\nbecause its NULL.\n\nThis patch adds a check for the NDOB bit in the common WRITE SAME code\nbecause we don't support it. And, it adds a check for zero SG elements in\neach handler in case the initiator tries to send a normal WRITE SAME with\nno data buffer.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"19f949f52599ba7c3f67a5897ac6be14bfcb1200"},{"last_affected":"19f949f52599ba7c3f67a5897ac6be14bfcb1200"}],"database_specific":{"extracted_events":[{"introduced":"3.8"},{"last_affected":"3.8"}],"source":"AFFECTED_FIELD"}}],"versions":["3.8","v3.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21546.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510"},{"type":"WEB","url":"https://git.kernel.org/stable/c/54e57be2573cf0b8bf650375fd8752987b6c3d3b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8e6a27e9238dd294d6f2f401655f300dca20899"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21546.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21546"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"oracle","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21546.json","unresolved_ranges":[{"extracted_events":[{"introduced":"f6970ad31d42fceb38b5595cbad093a4d0bfcc43"},{"fixed":"54e57be2573cf0b8bf650375fd8752987b6c3d3b"},{"introduced":"f6970ad31d42fceb38b5595cbad093a4d0bfcc43"},{"fixed":"d8e6a27e9238dd294d6f2f401655f300dca20899"},{"introduced":"f6970ad31d42fceb38b5595cbad093a4d0bfcc43"},{"fixed":"4226622647e3e5ac06d3ebc1605b917446157510"},{"introduced":"f6970ad31d42fceb38b5595cbad093a4d0bfcc43"},{"fixed":"ccd3f449052449a917a3e577d8ba0368f43b8f29"}],"source":"AFFECTED_FIELD"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}