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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < 3332212e93d0f6e24f8fe79f975e077c4e68ca39affectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < 86aae7053d2da3fdfde7b2e84d86e4af50490505affectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < af9d88cbf0fce52f465978360542ef679713491faffectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < 299cfb5a7deabdf9ecd30071755672af0aced5ebaffectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < 13c9e4ed125e19484234c960efe5ac9c55119523affectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < b6fca0a07989f361ceda27cb2d09c555d4d4a964affectedc0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 to < 5ac2c0279053a2c5265d46903432fb26ae2d0da2affected
Linux Linux
Default version status: affected
3.8affected0 to < 3.8unaffected5.10.248 to ≤ 5.10.*unaffected5.15.198 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.113 to ≤ 6.6.*unaffected6.12.54 to ≤ 6.12.*unaffected6.17.4 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3332212e93d0f6e24f8fe79f975e077c4e68ca39 ↗
- https://git.kernel.org/stable/c/86aae7053d2da3fdfde7b2e84d86e4af50490505 ↗
- https://git.kernel.org/stable/c/af9d88cbf0fce52f465978360542ef679713491f ↗
- https://git.kernel.org/stable/c/299cfb5a7deabdf9ecd30071755672af0aced5eb ↗
- https://git.kernel.org/stable/c/13c9e4ed125e19484234c960efe5ac9c55119523 ↗
- https://git.kernel.org/stable/c/b6fca0a07989f361ceda27cb2d09c555d4d4a964 ↗
- https://git.kernel.org/stable/c/5ac2c0279053a2c5265d46903432fb26ae2d0da2 ↗