CVE-2024-44998
A critical memory corruption vulnerability in the Linux kernel's ATM driver can allow attackers to crash the system or potentially execute arbitrary code. The flaw occurs when a packet buffer is freed too early, leading to a use‑after‑free condition. It has a CVSS score of 9.8 and is considered critical.
An official fix is available, so this entry is kept for 30 days and then removed automatically.
Who is affected
Linux kernel, particularly versions 6.11 and earlier that include the atm: idt77252 driver.
Real-world impact
An attacker could crash the system or potentially run arbitrary code on the affected machine, leading to denial of service or full compromise.
Why this severity
The CVSS score of 9.8 reflects the vulnerability's high impact (complete confidentiality, integrity, and availability loss) and the fact that it can be exploited remotely with no authentication or user interaction.
What to do about it
- 01Upgrade to Linux kernel 6.11 or later.
- 02Reboot the system to load the new kernel.
NVD-referenced vendor advisory
Timeline
- Sep 4, 2024 · Sep 4, 2024PublishedDisclosed and added to the National Vulnerability Database.
- Aug 4, 2026 · 2d agoAdvisory updatedThe NVD record was last revised.
- Aug 5, 2026 · 1d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.
How it’s attacked
References & advisories
- git.kernel.org/stable/c/09e086a5f72ea27c75…patch
- git.kernel.org/stable/c/1cece837e387c03922…patch
- git.kernel.org/stable/c/24cf390a5426aac925…patch
- git.kernel.org/stable/c/379a6a326514a3e2f7…patch
- git.kernel.org/stable/c/628ea82190a678a56d…patch
- git.kernel.org/stable/c/91b4850e7165a4b718…patch
- git.kernel.org/stable/c/a9a18e8f770c9b0703…patch
- git.kernel.org/stable/c/ef23c18ab88e33ce00…patch
- lists.debian.org/debian-lts-announce/2024/10…
- lists.debian.org/debian-lts-announce/2025/01…