drm/vmwgfx: Fix a null-ptr access in the cursor snooper (Linux Linux)

CVE-2025-40110
Not available

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 11 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Fix a null-ptr access in the cursor snooper Check that the resource which is converted to a surface exists before trying to use the cursor snooper on it. vmw_cmd_res_check allows explicit invalid (SVGA3D_INVALID_ID) identifiers because some svga commands accept SVGA3D_INVALID_ID to mean "no surface", unfortunately functions that accept the actual surfaces as objects might (and in case of the cursor snooper, do not) be able to handle null objects. Make sure that we validate not only the identifier (via the vmw_cmd_res_check) but also check that the actual resource exists before trying to do something with it. Fixes unchecked null-ptr reference in the snooping code.

References

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < 3332212e93d0f6e24f8fe79f975e077c4e68ca39 ; affected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < 86aae7053d2da3fdfde7b2e84d86e4af50490505 ; affected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < af9d88cbf0fce52f465978360542ef679713491f ; affected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < 299cfb5a7deabdf9ecd30071755672af0aced5eb ; affected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < 13c9e4ed125e19484234c960efe5ac9c55119523 ; affected c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 < b6fca0a07989f361ceda27cb2d09c555d4d4a964
Linux · Linuxaffected 3.8 ; unaffected 0 < 3.8 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.160 ≤ 6.1.* ; unaffected 6.6.113 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD