{"id":"CVE-2025-39998","revision":"5d61461ea9a7407882eeda46bac3a954","records":[{"revision":"5d61461ea9a7407882eeda46bac3a954","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-39998","aliases":[],"title":"scsi: target: target_core_configfs: Add length check to avoid buffer overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: target_core_configfs: Add length check to avoid buffer overflow\n\nA buffer overflow arises from the usage of snprintf to write into the\nbuffer \"buf\" in target_lu_gp_members_show function located in\n/drivers/target/target_core_configfs.c. This buffer is allocated with\nsize LU_GROUP_NAME_BUF (256 bytes).\n\nsnprintf(...) formats multiple strings into buf with the HBA name\n(hba->hba_group.cg_item), a slash character, a devicename (dev->\ndev_group.cg_item) and a newline character, the total formatted string\nlength may exceed the buffer size of 256 bytes.\n\nSince snprintf() returns the total number of bytes that would have been\nwritten (the length of %s/%sn ), this value may exceed the buffer length\n(256 bytes) passed to memcpy(), this will ultimately cause function\nmemcpy reporting a buffer overflow error.\n\nAn additional check of the return value of snprintf() can avoid this\nbuffer overflow.","state":0,"publishedAt":"2025-10-15T07:58:22.354+00:00","modifiedAt":"2026-10-15T22:02:35.977+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/target/target_core_configfs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"e6eeee5dc0d9221ff96d1b229b1d0222c8871b84\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"764a91e2fc9639e07aac93bc70e387e6b1e33084\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"ddc79fba132b807ff775467acceaf48b456e008b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"f03aa5e39da7d045615b3951d2a6ca1d7132f881\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"53c6351597e6a17ec6619f6f060d54128cb9a187\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"4b292286949588bd2818e66ff102db278de8dd26\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"a150275831b765b0f1de8b8ff52ec5c6933ac15d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"27e06650a5eafe832a90fd2604f0c5e920857fae\",\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/target/target_core_configfs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.38\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.38\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.301\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.246\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.195\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.156\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.110\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.51\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.16.11\",\n                            \"lessThanOrEqual\": \"6.16.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.1\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e6eeee5dc0d9221ff96d1b229b1d0222c8871b84","https://git.kernel.org/stable/c/764a91e2fc9639e07aac93bc70e387e6b1e33084","https://git.kernel.org/stable/c/ddc79fba132b807ff775467acceaf48b456e008b","https://git.kernel.org/stable/c/e73fe0eefac3e15bf88fb5b4afae4c76215ee4d4","https://git.kernel.org/stable/c/f03aa5e39da7d045615b3951d2a6ca1d7132f881","https://git.kernel.org/stable/c/53c6351597e6a17ec6619f6f060d54128cb9a187","https://git.kernel.org/stable/c/4b292286949588bd2818e66ff102db278de8dd26","https://git.kernel.org/stable/c/a150275831b765b0f1de8b8ff52ec5c6933ac15d","https://git.kernel.org/stable/c/27e06650a5eafe832a90fd2604f0c5e920857fae"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-39998","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-39998","identifiers":["CVE-2025-39998"]},"retained":false,"historicalAffected":[]}],"coverage":[]}