CVE - CVE-2025-21994

CVE-ID
CVE-2025-21994	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1b8b67f3c5e5169535e26efedd3e422172e2db64 URL:https://git.kernel.org/stable/c/1b8b67f3c5e5169535e26efedd3e422172e2db64 MISC:https://git.kernel.org/stable/c/9c4e202abff45f8eac17989e549fc7a75095f675 URL:https://git.kernel.org/stable/c/9c4e202abff45f8eac17989e549fc7a75095f675 MISC:https://git.kernel.org/stable/c/a4cb17797a5d241f1e509cb5b46ed95a80c2f5fd URL:https://git.kernel.org/stable/c/a4cb17797a5d241f1e509cb5b46ed95a80c2f5fd MISC:https://git.kernel.org/stable/c/d0f87370622a853b57e851f7d5a5452b72300f19 URL:https://git.kernel.org/stable/c/d0f87370622a853b57e851f7d5a5452b72300f19 MISC:https://git.kernel.org/stable/c/f6a6721802ac2f12f4c1bbe839a4c229b61866f2 URL:https://git.kernel.org/stable/c/f6a6721802ac2f12f4c1bbe839a4c229b61866f2
Assigning CNA
kernel.org
Date Record Created
20241229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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