{"id":"CVE-2026-23123","state":"PUBLISHED","title":"interconnect: debugfs: initialize src_node and dst_node to empty strings","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ninterconnect: debugfs: initialize src_node and dst_node to empty strings\n\nThe debugfs_create_str() API assumes that the string pointer is either NULL\nor points to valid kmalloc() memory. Leaving the pointer uninitialized can\ncause problems.\n\nInitialize src_node and dst_node to empty strings before creating the\ndebugfs entries to guarantee that reads and writes are safe.","publishedAt":"2026-02-14T15:09:53.369Z","updatedAt":"2026-05-11T22:00:34.413Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"935d0938b570589c8b0a1733d2cba3c39d027f25","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"8cc27f5c6dd17dd090f3a696683f04336c162ff5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/interconnect/debugfs-client.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/interconnect/debugfs-client.c"]}],"references":["https://git.kernel.org/stable/c/aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7","https://git.kernel.org/stable/c/935d0938b570589c8b0a1733d2cba3c39d027f25","https://git.kernel.org/stable/c/5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8","https://git.kernel.org/stable/c/8cc27f5c6dd17dd090f3a696683f04336c162ff5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23123.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23123","state":"PUBLISHED","datePublished":"2026-02-14T15:09:53.369Z","dateUpdated":"2026-05-11T22:00:34.413Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.970Z"},"containers":{"cna":{"title":"interconnect: debugfs: initialize src_node and dst_node to empty strings","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ninterconnect: debugfs: initialize src_node and dst_node to empty strings\n\nThe debugfs_create_str() API assumes that the string pointer is either NULL\nor points to valid kmalloc() memory. Leaving the pointer uninitialized can\ncause problems.\n\nInitialize src_node and dst_node to empty strings before creating the\ndebugfs entries to guarantee that reads and writes are safe."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"935d0938b570589c8b0a1733d2cba3c39d027f25","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8","versionType":"git"},{"version":"770c69f037c18cfaa37c3d6c6ef8bd257635513f","status":"affected","lessThan":"8cc27f5c6dd17dd090f3a696683f04336c162ff5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/interconnect/debugfs-client.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/interconnect/debugfs-client.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/aa79a5a959c7c414bd6fba01ea8dbaddd44f13e7"},{"url":"https://git.kernel.org/stable/c/935d0938b570589c8b0a1733d2cba3c39d027f25"},{"url":"https://git.kernel.org/stable/c/5d7c7e1fb3ec24fdd0f9faa27b666d6789e891e8"},{"url":"https://git.kernel.org/stable/c/8cc27f5c6dd17dd090f3a696683f04336c162ff5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:00:34.413Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}