CVEvulnerability
CVE-2025-40176
9.8 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2025-11-12
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
tls: wait for pending async decryptions if tls_strp_msg_hold fails
Async decryption calls tls_strp_msg_hold to create a clone of the
input skb to hold references to the memory it uses. If we fail to
allocate that clone, proceeding with async decryption can lead to
various issues (UAF on the skb, writing into userspace memory after
the recv() call has returned).
In this case, wait for all pending decryption requests.
References
- https://git.kernel.org/stable/c/39dec4ea3daf77f684308576baf483b55ca7f160 git.kernel.org
- https://git.kernel.org/stable/c/4fc109d0ab196bd943b7451276690fb6bb48c2e0 git.kernel.org
- https://git.kernel.org/stable/c/9f83fd0c179e0f458e824e417f9d5ad53443f685 git.kernel.org
- https://git.kernel.org/stable/c/b8a6ff84abbcbbc445463de58704686011edc8e1 git.kernel.org
- https://git.kernel.org/stable/c/c61d4368197d65c4809d9271f3b85325a600586a git.kernel.org