{"id":"CVE-2026-23093","state":"PUBLISHED","title":"ksmbd: smbd: fix dma_unmap_sg() nents","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbd: fix dma_unmap_sg() nents\n\nThe dma_unmap_sg() functions should be called with the same nents as the\ndma_map_sg(), not the value the map function returned.","publishedAt":"2026-02-04T16:08:16.159Z","updatedAt":"2026-05-11T21:59:51.936Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"6ececffd3e9fe93a87738625dc0671165d27bf96","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"4d1e9a4a450aae47277763562122cc80ed703ab2","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"70ba85e439221a5d6dda34a3004db6640f0525e6","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"d1943bc9dc9508f5933788a76f8a35d10e43a646","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"98e3e2b561bc88f4dd218d1c05890672874692f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/transport_rdma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.123","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.69","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":["fs/smb/server/transport_rdma.c"]}],"references":["https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec","https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96","https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2","https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6","https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646","https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23093.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23093","state":"PUBLISHED","datePublished":"2026-02-04T16:08:16.159Z","dateUpdated":"2026-05-11T21:59:51.936Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.962Z"},"containers":{"cna":{"title":"ksmbd: smbd: fix dma_unmap_sg() nents","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbd: fix dma_unmap_sg() nents\n\nThe dma_unmap_sg() functions should be called with the same nents as the\ndma_map_sg(), not the value the map function returned."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"6ececffd3e9fe93a87738625dc0671165d27bf96","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"4d1e9a4a450aae47277763562122cc80ed703ab2","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"70ba85e439221a5d6dda34a3004db6640f0525e6","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"d1943bc9dc9508f5933788a76f8a35d10e43a646","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","status":"affected","lessThan":"98e3e2b561bc88f4dd218d1c05890672874692f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/transport_rdma.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.123","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.69","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":["fs/smb/server/transport_rdma.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec"},{"url":"https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96"},{"url":"https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2"},{"url":"https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6"},{"url":"https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646"},{"url":"https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:59:51.936Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.69"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}