NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules-internal (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL9-KERNELDEBUGMODULESINTERNAL-9447237
- published15 Mar 2025
- disclosed12 Mar 2025
Introduced: 12 Mar 2025
CVE-2025-21844 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-internal package and not the kernel-debug-modules-internal package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
smb: client: Add check for next_buffer in receive_encrypted_standard()
Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.
References
- https://access.redhat.com/security/cve/CVE-2025-21844
- https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b
- https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96
- https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7
- https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391
- https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd
- https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30
- https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html