CVE-2024-39499

vmci: prevent speculation leaks by sanitizing event in event_deliver()

HIGH

7.1

CVSS Score

Published: July 12, 2024 at 12:20 PM UTC

Updated: June 17, 2026 at 07:42 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.1

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: vmci: prevent speculation leaks by sanitizing event in event_deliver() Coverity spotted that event_msg is controlled by user-space, event_msg->event_data.event is passed to event_deliver() and used as an index without sanitization. This change ensures that the event index is sanitized to mitigate any possibility of speculative information leaks. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc. Only compile tested, no access to HW.

Affected

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

Linux Kernel · Linux

95%

3.9 ≤ v < 4.19.3173.9 ≤ v < 5.10.2213.9 ≤ v < 5.15.1623.9 ≤ v < 5.4.2793.9 ≤ v < 6.1.953.9 ≤ v < 6.103.9 ≤ v < 6.6.353.9 ≤ v < 6.9.64.20 ≤ v < 5.4.2795.11 ≤ v < 5.15.1625.16 ≤ v < 6.1.955.5 ≤ v < 5.10.2216.2 ≤ v < 6.6.356.7 ≤ v < 6.9.61d990201f9bb499b7c76ab00abeb7e803c0bcb2a3.9

Vendor states this is fixed in 58730dfbd4ae01c1b022b0d234a8bf8c02cdfb81 (fixed)

Vendor states this is fixed in 681967c4ff210e06380acf9b9a1b33ae06e77cbd (fixed)

Vendor states this is fixed in 757804e1c599af5d2a7f864c8e8b2842406ff4bb (fixed)

Vendor states this is fixed in 8003f00d895310d409b2bf9ef907c56b42a4e0f4 (fixed)

Vendor states this is fixed in 95ac3e773a1f8da83c4710a720fbfe80055aafae (fixed)

Vendor states this is fixed in 95bac1c8bedb362374ea1937b1d3e833e01174ee (fixed)

Vendor states this is fixed in e293c6b38ac9029d76ff0d2a6b2d74131709a9a8 (fixed)

Vendor states this is fixed in f70ff737346744633e7b655c1fb23e1578491ff3 (fixed)

Vendor states this is fixed in 3.9 (unaffected)

Vendor states this is fixed in 4.19.317 (unaffected)

Vendor states this is fixed in 5.10.221 (unaffected)

Vendor states this is fixed in 5.15.162 (unaffected)