CVE-2026-97983

In the Linux kernel, the following vulnerability has been resolved: vduse: return compat ioctl results directly The compat handler handles VDUSE_IOTLB_GET_FD and VDUSE_VQ_GET_INFO, but then calls the native handler. Their different command sizes make native dispatch return -ENOIOCTLCMD. For GET_FD, this overwrites receive_fd()'s return value after the descriptor is installed, leaking one fd per call. Return handled compat results directly and use native dispatch only for other commands.

Package Linux Kernel
Published 2026-09-25
Last modified 2026-09-25
Patch available
Yes

Affected versions

Linux kernel versions 7.1.5, 7.2 and later are affected. Fixed in 7.2.7, 7.3-rc3 and their respective stable series.

Affected from
≥ 7.1.5 ≥ 7.2
Fixed in
✓ 7.2.7 7.2.x ✓ 7.3-rc3

References

2 total

Frequently asked questions

  • What is CVE-2026-97983?

    CVE-2026-97983 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.1.5 onward and has been patched in 7.2.7 and 7.3-rc3. CVE-2026-97983 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-97983?

    Yes. CVE-2026-97983 has been patched. Fixed versions include 7.2.7 and 7.3-rc3. If you are running Linux kernel 7.1.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-97983 actively exploited?

    No. CVE-2026-97983 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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