NVIDIA sent out a security bulletin today to reveal a fresh security flaw found in their Linux GPU drivers. So it’s time to get updating again to be safe.
Noted down as CVE‑2025‑23244 here’s their explanation:
NVIDIA GPU Display Driver for Linux contains a vulnerability which could allow an unprivileged attacker to escalate permissions. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
There’s a number of different driver series, so you’ll need to check what you’re currently on to see the best version upgrade. If you’re on any of these you’ll be fine: 535.247.01, 550.163.01, 570.133.07 and 575.51.02.
See more on the NVIDIA website.
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For once I was lucky I updated my drivers this morning ^^
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Not to mention Bruce Schneier's blog about a new rootkit "discovered" (read: written) by ARMO:
https://www.schneier.com/blog/archives/2025/04/new-linux-rootkit.html
ARMO claim that they have a product to stop this type of attack.
Or one can simply disable io_uring by running
and reboot to disable it altogether.
Edit: forgot kernel
Last edited by redneckdrow on 24 Apr 2025 at 11:06 pm UTC
https://www.schneier.com/blog/archives/2025/04/new-linux-rootkit.html
ARMO claim that they have a product to stop this type of attack.
Or one can simply disable io_uring by running
sysctl kernel.io_uring_disabled = 1
as root to disable it temporarily, or adding the following line in /etc/sysctl.d/99-sysctl.conf:kernel.io_uring_disabled = 1
and reboot to disable it altogether.
Edit: forgot kernel
Last edited by redneckdrow on 24 Apr 2025 at 11:06 pm UTC
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the link above says the attackers use io.uring to bypass detection by monitoring tools, so it seems io.uring isn't an exploitable vulnerability per se, only a way already invaded systems will keep invaded in heavily monitored environments
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See more from me