JVN iPedia http://jvndb.jvn.jp Advisory JVNDB-2026-007933 Linuxカーネルにおいて、以下の脆弱性が修正されました：ksmbdのsmbdにおけるdma_unmap_sg()のnentsの処理を修正しました。dma_unmap_sg()関数はdma_map_sg()と同じnentsの値で呼び出す必要があり、map関数が返す値を使用してはいけません。 cpe:/o:linux:linux_kernel https://jvndb.jvn.jp/ja/contents/2026/JVNDB-2026-007933.html Common Vulnerabilities and Exposures (CVE) CVE-2026-23093 https://www.cve.org/CVERecord?id=CVE-2026-23093 National Vulnerability Database (NVD) CVE-2026-23093 https://nvd.nist.gov/vuln/detail/CVE-2026-23093 JVNDB CWE-noinfo https://www.ipa.go.jp/security/vuln/scap/cwe.html 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6) https://git.kernel.org/stable/c/70ba85e439221a5d6dda34a3004db6640f0525e6 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6) https://git.kernel.org/stable/c/98e3e2b561bc88f4dd218d1c05890672874692f6 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2) https://git.kernel.org/stable/c/4d1e9a4a450aae47277763562122cc80ed703ab2 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec) https://git.kernel.org/stable/c/f569f5b8bfd5133defdf9c7f8a72c63aa11f54ec 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96) https://git.kernel.org/stable/c/6ececffd3e9fe93a87738625dc0671165d27bf96 関連文書 ksmbd: smbd: fix dma_unmap_sg() nents - kernel/git/stable/linux.git - Linux kernel stable tree (https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646) https://git.kernel.org/stable/c/d1943bc9dc9508f5933788a76f8a35d10e43a646 2026-03-19T12:24:06+09:00 2026-03-19T12:24:06+09:00