WS-2021-0214

Linux/kernel in versions v5.6-rc1 to v5.12-rc7 is vulnerable to clobbering of SWERR overflow bit on writeback...

CVE-2021-46920: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code blindly writes over the SWERR and the OVERFLOW bits. Write back the bits actually read instead so the driver avoids clobbering the OVERFLOW bit that...

PT-2021-28498

Name of the Vulnerable Software and Affected Versions Linux Kernel versions v5.6 through v5.10.31 Description The issue is related to the dmaengine: idxd, where the SWERR overflow bit is clobbered on writeback. The actual impact and attack plausibility have not yet been proven. Recommendations Fo...

PT-2021-24504

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions v5.6 through v5.10.31 Description: The issue is related to the dmaengine: idxd, where the SWERR overflow bit is clobbered on writeback. The actual impact and attack plausibility have not yet been proven. Recommendations:...

PT-2021-28492

Name of the Vulnerable Software and Affected Versions Linux Kernel versions v5.6 through v5.11.15 Description The issue is related to the dmaengine: idxd, where the SWERR overflow bit is clobbered on writeback. The actual impact and attack plausibility have not yet been proven. Recommendations Fo...