CVE-2025-21994 - Linux ksmbd Integer Overflow Vulnerability

CVE ID : CVE-2025-21994
Published : April 2, 2025, 2:16 p.m. | 37 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix incorrect validation for num_aces field of smb_acl parse_dcal() validate num_aces to allocate posix_ace_state_array. if (num_aces > ULONG_MAX / sizeof(struct smb_ace *)) It is an incorrect validation that we can create an array of size ULONG_MAX. smb_acl has ->size field to calculate actual number of aces in request buffer size. Use this to check invalid num_aces.
Severity: 0.0 | NA
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