CVE-2021-46920
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| bfe1d56091c1a404b3d4ce7e9809d745fc4453bb | affected | git | a5ad12d5d69c63af289a37f05187a0c6fe93553d | Unavailable | None listed |
| bfe1d56091c1a404b3d4ce7e9809d745fc4453bb | affected | git | 02981a44a0e402089775416371bd2e0c935685f8 | Unavailable | None listed |
| bfe1d56091c1a404b3d4ce7e9809d745fc4453bb | affected | git | ea941ac294d75d0ace50797aebf0056f6f8f7a7f | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 5.10.32 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.11.16 | unaffected | semver | Unavailable | 5.11.* | None listed |
| 5.12 | unaffected | original_commit_for_fix | Unavailable | * | None listed |