Insufficient Control Flow Management Affecting torvalds/linux package, versions [5.6,5.10.271)[5.11,5.15.222)[5.16,6.1.189)[6.2,6.6.158)[6.7,6.12.112)[6.13,6.18.54)[6.19,7.2.8)
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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Test your applications- Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20824848
- published11 Oct 2026
- disclosed6 Oct 2026
- creditUnknown
Introduced: 6 Oct 2026
NewCVE-2026-98344 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, 6.18.54, 7.2.8 or higher.
Overview
Affected versions of this package are vulnerable to Insufficient Control Flow Management in the dma_chan_put process. An attacker can cause a reference count underflow by repeatedly acquiring and releasing DMA channels in a specific sequence, potentially leading to use-after-free conditions or denial of service. This is only exploitable if a non-private provider has a persistent client with a positive client count while another client cycles channel acquisition and release.
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