{"id":"CVE-2025-38462","title":"vsock: Fix transport_{g2h,h2g} TOCTOU","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_{g2h,h2g} TOCTOU\n\nvsock_find_cid() and vsock_dev_do_ioctl() may race with module unload.\ntransport_{g2h,h2g} may become NULL after the NULL check.\n…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < c5496ee685c48ed1cc183cd4263602579bb4a615","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 80d7dc15805a93d520a249ac6d13d4f4df161c1b","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 401239811fa728fcdd53e360a91f157ffd23e1f4","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 3734d78210cceb2ee5615719a62a5c55ed381ff8","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 6a1bcab67bea797d83aa9dd948a0ac6ed52d121d","Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 209fd720838aaf1420416494c5505096478156b4","Linux 5.5"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:57:17.468402Z"},"published":"2025-07-25","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:02:39.527Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38462","references":[{"url":"https://git.kernel.org/stable/c/c5496ee685c48ed1cc183cd4263602579bb4a615"},{"url":"https://git.kernel.org/stable/c/80d7dc15805a93d520a249ac6d13d4f4df161c1b"},{"url":"https://git.kernel.org/stable/c/5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17"},{"url":"https://git.kernel.org/stable/c/401239811fa728fcdd53e360a91f157ffd23e1f4"},{"url":"https://git.kernel.org/stable/c/3734d78210cceb2ee5615719a62a5c55ed381ff8"},{"url":"https://git.kernel.org/stable/c/6a1bcab67bea797d83aa9dd948a0ac6ed52d121d"},{"url":"https://git.kernel.org/stable/c/209fd720838aaf1420416494c5505096478156b4"}],"tags":["cve.org"],"epss":0.00137,"epssPercentile":0.03108,"ingestedAt":"2026-11-05T22:38:31.974Z","slug":"CVE-2025-38462","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_{g2h,h2g} TOCTOU\n\nvsock_find_cid() and vsock_dev_do_ioctl() may race with module unload.\ntransport_{g2h,h2g} may become NULL after the NULL check.\n\nIntroduce vsock_transport_local_cid() to protect from a potential\nnull-ptr-deref.\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_find_cid+0x47/0x90\nCall Trace:\n __vsock_bind+0x4b2/0x720\n vsock_bind+0x90/0xe0\n __sys_bind+0x14d/0x1e0\n __x64_sys_bind+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0\nCall Trace:\n __x64_sys_ioctl+0x12d/0x190\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n## Affected\n\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < c5496ee685c48ed1cc183cd4263602579bb4a615`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 80d7dc15805a93d520a249ac6d13d4f4df161c1b`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 401239811fa728fcdd53e360a91f157ffd23e1f4`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 3734d78210cceb2ee5615719a62a5c55ed381ff8`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 6a1bcab67bea797d83aa9dd948a0ac6ed52d121d`\n- `Linux >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 209fd720838aaf1420416494c5505096478156b4`\n- `Linux 5.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}