Improper Restriction of Operations within the Bounds of a Memory Buffer Affecting torvalds/linux package, versions [4.17,6.1.191)[6.2,6.6.140)[6.7,6.12.90)[6.13,6.18.32)[6.19,7.0.9)
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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- published11 Oct 2026
- disclosed19 Jul 2026
- creditUnknown
Introduced: 19 Jul 2026
CVE-2026-53376 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.1.191, 6.6.140, 6.12.90, 6.18.32, 7.0.9 or higher.
Overview
Affected versions of this package are vulnerable to Improper Restriction of Operations within the Bounds of a Memory Buffer in the kfd_ioctl_get_process_apertures_new function due to a missing upper bound check for the num_of_nodes parameter. An attacker can trigger out-of-bounds memory access by supplying a crafted value to this parameter.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst