{"id":"CVE-2026-93812","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr\n\nndr_encode_v4_ntacl() allocates sd_ndr.data via kzalloc() at entry.\nIf any subsequent ndr_write_*() call r…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr\n\nndr_encode_v4_ntacl() allocates sd_ndr.data via kzalloc() at entry.\nIf any subsequent ndr_write_*() call r…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < 306d6f370da7e0e5532dc51c972f4ce101e42431","Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < dc55270e410ccb4d24e637c13b5c4c25bcd106d7","Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e","Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < 9b4dec75498fd0a1c9eaea680aef59c9519eb16f","Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < c521dd78e036b5e0cfd394dd2ff2218890dd9e41","Linux >= 303fff2b8c77a85c62dbde3b27c24b084144c04c < d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7","Linux 5.15"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:50.993","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93812","references":[{"url":"https://git.kernel.org/stable/c/306d6f370da7e0e5532dc51c972f4ce101e42431","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9b4dec75498fd0a1c9eaea680aef59c9519eb16f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c521dd78e036b5e0cfd394dd2ff2218890dd9e41","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dc55270e410ccb4d24e637c13b5c4c25bcd106d7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00173,"epssPercentile":0.06621,"ingestedAt":"2026-09-24T16:47:15.894Z","slug":"CVE-2026-93812","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr\n\nndr_encode_v4_ntacl() allocates sd_ndr.data via kzalloc() at entry.\nIf any subsequent ndr_write_*() call returns error during encoding,\nthe allocated sd_ndr.data won't be freed and causes memory leak.\n\nMove kfree(sd_ndr.data) into out label to ensure the buffer gets\nreleased on all success and error return paths.\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":[]}