{"id":"CVE-2026-45921","state":"PUBLISHED","title":"mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()\n\nThe function mtd_parser_tplink_safeloader_parse() allocates buf via\nmtd_parser_tplink_safeloader_read_table(). If the allocation for\nparts[idx].name fails inside the loop, the code jumps to the err_free\nlabel without freeing buf, leading to a memory leak.\n\nFix this by freeing the temporary buffer buf in the err_free label.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","publishedAt":"2026-05-27T12:17:40.032Z","updatedAt":"2026-05-27T12:17:40.032Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"0f5e62ea5c43146eacdc6861cb1022ffae1b79bc","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"e97f5fac8ce9a6b9ec724c97d86b0985e915fdca","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"ec121ad626c319085f6d40a52cd04e99b4554926","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"971e9c53aed82f17a9c6a65daa4e21cc15eba5b1","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/parsers/tplink_safeloader.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/parsers/tplink_safeloader.c"]}],"references":["https://git.kernel.org/stable/c/0f5e62ea5c43146eacdc6861cb1022ffae1b79bc","https://git.kernel.org/stable/c/e97f5fac8ce9a6b9ec724c97d86b0985e915fdca","https://git.kernel.org/stable/c/ec121ad626c319085f6d40a52cd04e99b4554926","https://git.kernel.org/stable/c/971e9c53aed82f17a9c6a65daa4e21cc15eba5b1","https://git.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45921.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45921","state":"PUBLISHED","datePublished":"2026-05-27T12:17:40.032Z","dateUpdated":"2026-05-27T12:17:40.032Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.085Z"},"containers":{"cna":{"title":"mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()\n\nThe function mtd_parser_tplink_safeloader_parse() allocates buf via\nmtd_parser_tplink_safeloader_read_table(). If the allocation for\nparts[idx].name fails inside the loop, the code jumps to the err_free\nlabel without freeing buf, leading to a memory leak.\n\nFix this by freeing the temporary buffer buf in the err_free label.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"0f5e62ea5c43146eacdc6861cb1022ffae1b79bc","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"e97f5fac8ce9a6b9ec724c97d86b0985e915fdca","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"ec121ad626c319085f6d40a52cd04e99b4554926","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"971e9c53aed82f17a9c6a65daa4e21cc15eba5b1","versionType":"git"},{"version":"00a3588084bee6f37bb2b1d343f96900cfe049bc","status":"affected","lessThan":"980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/parsers/tplink_safeloader.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/parsers/tplink_safeloader.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0f5e62ea5c43146eacdc6861cb1022ffae1b79bc"},{"url":"https://git.kernel.org/stable/c/e97f5fac8ce9a6b9ec724c97d86b0985e915fdca"},{"url":"https://git.kernel.org/stable/c/ec121ad626c319085f6d40a52cd04e99b4554926"},{"url":"https://git.kernel.org/stable/c/971e9c53aed82f17a9c6a65daa4e21cc15eba5b1"},{"url":"https://git.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-27T12:17:40.032Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}