{"id":"CVE-2026-46149","revision":"505c0153042a40278c8838dc94b189b5","records":[{"revision":"505c0153042a40278c8838dc94b189b5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46149","aliases":[],"title":"scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show()\n\ntarget_tg_pt_gp_members_show() formats LUN paths with snprintf() into a\n256-byte stack buffer, then will memcpy() cur_len bytes from that\nbuffer.  snprintf() returns the length the output would have had, which\ncan exceed the buffer size when the fabric WWN is long because iSCSI IQN\nnames can be up to 223 bytes.  The check at the memcpy() site only\nguards the destination page write, not the source read, so memcpy() will\nread past the stack buffer and copy adjacent stack contents to the sysfs\nreader, which when CONFIG_FORTIFY_SOURCE is enabled, fortify_panic()\nwill be triggered.\n\nCommit 27e06650a5ea (\"scsi: target: target_core_configfs: Add length\ncheck to avoid buffer overflow\") added the same bound to the\ntarget_lu_gp_members_show() but the tg_pt_gp variant was missed so\nresolve that here.","state":0,"publishedAt":"2026-05-28T09:36:05.706+00:00","modifiedAt":"2026-10-19T19:36:52.452+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\": \"d3cc9d490c207d57a289054397349f6f8c90354e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"db0a4759d62cad4ff891e2d81ae4be73bb57f4a4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"12f2201a56957ba020392223a7393a5eba080c1b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"1f678d13e939f91840cb1ebe9b88544923539d3c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"00d91bfdce5033f5d9b4915638ae9b0553848b5d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"e501154f9d82c95d2719bcbbaf679d8fd3226ef7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5\",\n                            \"lessThan\": \"772a896a56e0e3ef9424a025cec9176f9d8f4552\",\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\": \"5.10.258\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.209\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.175\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.140\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.88\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.30\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.7\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\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/d3cc9d490c207d57a289054397349f6f8c90354e","https://git.kernel.org/stable/c/db0a4759d62cad4ff891e2d81ae4be73bb57f4a4","https://git.kernel.org/stable/c/12f2201a56957ba020392223a7393a5eba080c1b","https://git.kernel.org/stable/c/1f678d13e939f91840cb1ebe9b88544923539d3c","https://git.kernel.org/stable/c/72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e","https://git.kernel.org/stable/c/00d91bfdce5033f5d9b4915638ae9b0553848b5d","https://git.kernel.org/stable/c/e501154f9d82c95d2719bcbbaf679d8fd3226ef7","https://git.kernel.org/stable/c/772a896a56e0e3ef9424a025cec9176f9d8f4552"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46149","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46149","identifiers":["CVE-2026-46149"]},"retained":false,"historicalAffected":[]}],"coverage":[]}