CVE-2026-97983

vduse: return compat ioctl results directly

N/A
Published: September 25, 2026 at 10:23 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

455a2a1af92651764e9eb42cec0d95ac142afc287.1.57.27dd28904c42ee3b0728c0692dd3332c2c83e8f33
Vendor states this is fixed in 135ac58097fa5fc707bf392c5cececf59e4080c0 (fixed)
Vendor states this is fixed in 48a4ee65e677559776349128e6a81a6041986c99 (fixed)
Vendor states this is fixed in 7.2 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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