[ CVE-2026-93812 · Published 24 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr ndr_encode_v4_ntacl() allocates sd_ndr.data via kzalloc() at entry. If any subsequent ndr_write_*() call returns error during encoding, the allocated sd_ndr.data won't be freed and causes memory leak. Move kfree(sd_ndr.data) into out label to ensure the buffer gets released on all success and error return paths.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
-
CERT-FRCERTFR-2026-AVI-1289
Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
-
CERT-FRCERTFR-2026-AVI-1253
Multiple vulnerabilities in the Debian Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
-
BSI CERT-BundWID-SEC-2026-3579
Linux Kernel: Multiple vulnerabilities Translated from German
[ References ]References
- git.kernel.org/stable/c/306d6f370da7e0e5532dc51c972f4ce101e42431
- git.kernel.org/stable/c/9b4dec75498fd0a1c9eaea680aef59c9519eb16f
- git.kernel.org/stable/c/c521dd78e036b5e0cfd394dd2ff2218890dd9e41
- git.kernel.org/stable/c/c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e
- git.kernel.org/stable/c/d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7
- git.kernel.org/stable/c/dc55270e410ccb4d24e637c13b5c4c25bcd106d7