VULNERABILITY

Debian: CVE-2025-21994: linux -- security update

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Debian: CVE-2025-21994: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
04/02/2025
Created
04/15/2025
Added
04/14/2025
Modified
04/14/2025

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.

Solution(s)

  • debian-upgrade-linux

References

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