In plain language
What this advisory means
Researchers found multiple security problems in the Linux kernel used by Ubuntu, including a flaw in WiFi that could let nearby attackers inject harmful packets. These issues affect many parts of the system and could allow attackers to compromise computers. Ubuntu released updates to fix these problems. Users should update and reboot their systems to protect against possible attacks.
Technical explanation
How the issue affects the environment
The Linux kernel in Ubuntu's NVIDIA Tegra IGX platform contained several security vulnerabilities. Notably, the WiFi implementation failed to correctly handle aggregated frames in mesh networks due to an incorrect fix for CVE-2020-24588, allowing a physically proximate attacker to inject packets (CVE-2025-27558). Additional flaws were found in subsystems including x86 architecture, InfiniBand, network drivers, NVME, ext4 and SMB file systems, IPv4 and IPv6 networking, TCP protocol, locking primitives, multipath TCP, netfilter, SCTP protocol, and SMC sockets. Exploitation of these vulnerabilities could potentially lead to system compromise. The update addresses these issues by patching the kernel subsystems involved.
Operational impact
Why teams should care
If exploited, attackers could inject malicious network packets or leverage vulnerabilities across multiple kernel subsystems to compromise Ubuntu systems running on NVIDIA Tegra IGX. This could lead to unauthorized access, data breaches, system instability, or denial of service. Organizations using affected versions should prioritize applying the updates to reduce security risks and protect sensitive information.
Immediate action
Update the Linux kernel packages for NVIDIA Tegra IGX systems to the provided versions, then reboot the computer. Note that the kernel update includes an ABI change, requiring recompilation and reinstallation of any third-party kernel modules. Standard system upgrades should handle these steps automatically unless kernel metapackages were manually removed.
Affected and fixed releases
Temporary risk reduction
No separate workaround was supplied in the source feed. Use the official vendor advisory before changing production controls.
Evidence and validation checklist
- WiFi issue due to incorrect fix for CVE-2020-24588 allowing packet injection (CVE-2025-27558) by nearby attacker
- Multiple kernel subsystems affected including networking protocols and file systems
- Update provided with specific kernel version numbers
- ABI changes requiring third-party module recompilation
- No explicit exploitation status stated in the advisory
Authoritative reference
Ubuntu Security Notices
QCS detected and normalized this record from the official source. Vendor guidance remains authoritative.