CVE-2021-46920

Description

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 comes after the register is read.

Reserved 2024-02-25 | Published 2024-02-27 | Updated 2024-12-19 | Assigner Linux

Product status

Default status
unaffected

bfe1d56091c1a404b3d4ce7e9809d745fc4453bb before a5ad12d5d69c63af289a37f05187a0c6fe93553d
affected

bfe1d56091c1a404b3d4ce7e9809d745fc4453bb before 02981a44a0e402089775416371bd2e0c935685f8
affected

bfe1d56091c1a404b3d4ce7e9809d745fc4453bb before ea941ac294d75d0ace50797aebf0056f6f8f7a7f
affected

Default status
affected

5.6
affected

Any version before 5.6
unaffected

5.10.32
unaffected

5.11.16
unaffected

5.12
unaffected

References

git.kernel.org/...c/a5ad12d5d69c63af289a37f05187a0c6fe93553d

git.kernel.org/...c/02981a44a0e402089775416371bd2e0c935685f8

git.kernel.org/...c/ea941ac294d75d0ace50797aebf0056f6f8f7a7f

cve.org (CVE-2021-46920)

nvd.nist.gov (CVE-2021-46920)

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