Buffer Overflow Affecting torvalds/linux package, versions [4.20,6.6.160)[6.7,6.12.114)[6.13,6.18.53)[6.19,7.2.7)
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-20824641
- published11 Oct 2026
- disclosed25 Sept 2026
- creditUnknown
Introduced: 25 Sep 2026
CVE-2026-98156 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.6.160, 6.12.114, 6.18.53, 7.2.7 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow in the virtio_gpu_object_shmem_init process. An attacker can access and manipulate memory belonging to other domains or the hypervisor by providing crafted guest-physical addresses, resulting in unauthorized memory reads and writes, potential data leakage, and system crashes. This is only exploitable if running as a Xen PV dom0 nested inside QEMU with virtio-vga and without iommu_platform, so VIRTIO_F_ACCESS_PLATFORM is not negotiated.
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