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VULNERABILITIES

CVE-2026-93811 Details

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling 1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data which only freed n.data, skipping kfree(acl.sd_buf) and leaking the buffer. Zero-initialize struct xattr_ntacl acl, reorder error labels to out_free to release acl.sd_buf on all error paths. 2. if (acl.sd_size < sizeof(struct smb_ntsd)) is true, original code returned success without freeing sd_buf and left stale *pntsd. Set rc = -EINVAL before jumping to out_free to return error code and free buffer.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/6e6329322ad733c5b23555c609353841560b26bc kernel.org
https://git.kernel.org/stable/c/c3836f55e0dab96314774215e12d87f63fa919f2 kernel.org
https://git.kernel.org/stable/c/d708a36634bb7b6f94d0e76d587d2ec50b2b93b5 kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-93811
NVD Published Date:
Sep 24, 2026
NVD Last Modified:
Sep 25, 2026
Source:
kernel.org
CVE-2026-93811 Details - Not Deferred