{"id":"CVE-2026-93056","revision":"f13a8bf8bc2b4ddc8b59d93e44c4992e","records":[{"revision":"f13a8bf8bc2b4ddc8b59d93e44c4992e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93056","aliases":[],"title":"usb: gadget: f_uac1_legacy: remove broken string configfs attributes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_uac1_legacy: remove broken string configfs attributes\n\nThe UAC1_STR_ATTRIBUTE macro defines configfs show/store handlers for\nthe fn_play, fn_cap, and fn_cntl string options. The store function\ncontains an inverted null check on the kstrndup() return value.\n\nThis means every write attempt returns -ENOMEM on success and\ndereferences a NULL pointer on allocation failure. The attributes\nhave been broken and unused for many years.\n\nRemove the UAC1_STR_ATTRIBUTE macro and the three attributes it\ngenerated. The internal defaults (FILE_PCM_PLAYBACK, FILE_PCM_CAPTURE,\nFILE_CONTROL) set in f_audio_alloc_inst() are unaffected.","state":0,"publishedAt":"2026-09-17T16:10:44.442+00:00","modifiedAt":"2026-10-19T09:04:52.242+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                        \"Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy\",\n                        \"Documentation/usb/gadget-testing.rst\",\n                        \"drivers/usb/gadget/function/f_uac1_legacy.c\",\n                        \"drivers/usb/gadget/function/u_uac1_legacy.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"745adfe6c337f3d5d7737d57529d14a208151b45\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"6351ba62778f72dc4f6bc18bfa99e618829cff0d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"021b58ac3e58cffa68ed9585ff492a19e98414f6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"8b9335aec93975bb9186d63993a5a610e5066ffc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"2ed25c9d4400cf90d9201657963a231c27a5ea57\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"977659adb341f6e30fb00dcf183f63f29df879e2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0854611a19ae4dfa56569e6f640017a1d2dd3312\",\n                            \"lessThan\": \"590d74ec8f488e06b9f1c0f8f0941f45531f3a55\",\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                        \"Documentation/ABI/testing/configfs-usb-gadget-uac1_legacy\",\n                        \"Documentation/usb/gadget-testing.rst\",\n                        \"drivers/usb/gadget/function/f_uac1_legacy.c\",\n                        \"drivers/usb/gadget/function/u_uac1_legacy.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\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/745adfe6c337f3d5d7737d57529d14a208151b45","https://git.kernel.org/stable/c/6351ba62778f72dc4f6bc18bfa99e618829cff0d","https://git.kernel.org/stable/c/021b58ac3e58cffa68ed9585ff492a19e98414f6","https://git.kernel.org/stable/c/fd43eae7d539ea7cfc7c9f0d3f0eaa890415e8a7","https://git.kernel.org/stable/c/8b9335aec93975bb9186d63993a5a610e5066ffc","https://git.kernel.org/stable/c/2ed25c9d4400cf90d9201657963a231c27a5ea57","https://git.kernel.org/stable/c/977659adb341f6e30fb00dcf183f63f29df879e2","https://git.kernel.org/stable/c/590d74ec8f488e06b9f1c0f8f0941f45531f3a55"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93056","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93056","identifiers":["CVE-2026-93056"]},"retained":false,"historicalAffected":[]}],"coverage":[]}