CVE-2025-38403

vsock/vmci: Clear the vmci transport packet properly when initializing it

HIGH

7.8

CVSS Score

Published: July 25, 2025 at 01:08 PM UTC

Updated: June 17, 2026 at 09:16 AM UTC

2 products affected across 2 vendorsLinux KernelDebian Linux

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: vsock/vmci: Clear the vmci transport packet properly when initializing it In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure.

Affected

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

Debian Linux · Debiandrupal

95%

11.0

Linux Kernel · Linux

95%

3.9 ≤ v < 5.10.2403.9 ≤ v < 5.15.1873.9 ≤ v < 5.4.2963.9 ≤ v < 6.1.1443.9 ≤ v < 6.12.373.9 ≤ v < 6.15.63.9 ≤ v < 6.163.9 ≤ v < 6.6.975.11 ≤ v < 5.15.1875.16 ≤ v < 6.1.1445.5 ≤ v < 5.10.2406.13 ≤ v < 6.15.66.2 ≤ v < 6.6.976.7 ≤ v < 6.12.373.9 6.16 rc1 6.16 rc2 6.16 rc3 6.16 rc4d021c344051af91f42c5ba9fdedc176740cbd238

Vendor states this is fixed in 0a01021317375b8d1895152f544421ce49299eb1 (fixed)

Vendor states this is fixed in 19c2cc01ff9a8031398a802676ffb0f4692dd95d (fixed)

Vendor states this is fixed in 1c1bcb0e78230f533b4103e8cf271d17c3f469f0 (fixed)

Vendor states this is fixed in 223e2288f4b8c262a864e2c03964ffac91744cd5 (fixed)

Vendor states this is fixed in 2d44723a091bc853272e1a51a488a3d22b80be5e (fixed)

Vendor states this is fixed in 75705b44e0b9aaa74f4c163d93d388bcba9e386a (fixed)

Vendor states this is fixed in 94d0c326cb3ee6b0f8bd00e209550b93fcc5c839 (fixed)

Vendor states this is fixed in e9a673153d578fd439919a24e99851b2f87ecbce (fixed)

Vendor states this is fixed in 3.9 (unaffected)

Vendor states this is fixed in 5.10.240 (unaffected)

Vendor states this is fixed in 5.15.187 (unaffected)

Vendor states this is fixed in 5.4.296 (unaffected)