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.

INFO

Published Date :

2025-04-02T14:00:37.407Z

Last Modified :

2025-11-03T19:40:35.107Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-21994 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-21994.

URL Resource
https://git.kernel.org/stable/c/1b8b67f3c5e5169535e26efedd3e422172e2db64 cve-icon cve-icon
https://git.kernel.org/stable/c/9c4e202abff45f8eac17989e549fc7a75095f675 cve-icon cve-icon
https://git.kernel.org/stable/c/a4cb17797a5d241f1e509cb5b46ed95a80c2f5fd cve-icon cve-icon
https://git.kernel.org/stable/c/c3a3484d9d31b27a3db0fab91fcf191132d65236 cve-icon cve-icon
https://git.kernel.org/stable/c/d0f87370622a853b57e851f7d5a5452b72300f19 cve-icon cve-icon
https://git.kernel.org/stable/c/f6a6721802ac2f12f4c1bbe839a4c229b61866f2 cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html cve-icon
https://lore.kernel.org/linux-cve-announce/2025040214-CVE-2025-21994-44bf@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21994 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21994 cve-icon
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