CVE-2021-46920
published 2024-02-27CVE-2021-46920: In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code blindly…
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCNIHAN
EPSS
0.22%
12.3th percentile
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.38-1 (bookworm) | linux 5.10.38-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= bfe1d56091c1a404b3d4ce7e9809d745fc4453bb < a5ad12d5d69c63af289a37f05187a0c6fe93553d | a5ad12d5d69c63af289a37f05187a0c6fe93553d |
| linux | linux | >= bfe1d56091c1a404b3d4ce7e9809d745fc4453bb < 02981a44a0e402089775416371bd2e0c935685f8 | 02981a44a0e402089775416371bd2e0c935685f8 |
| linux | linux | >= bfe1d56091c1a404b3d4ce7e9809d745fc4453bb < ea941ac294d75d0ace50797aebf0056f6f8f7a7f | ea941ac294d75d0ace50797aebf0056f6f8f7a7f |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 5.11.0 < 5.11.16 | 5.11.16 |
| linux | linux_kernel | >= 5.6.0 < 5.10.32 | 5.10.32 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2021-46920: In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code bl
osv·2024-02-27·CVSS 5.5
CVE-2021-46920 [MEDIUM] CVE-2021-46920: In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code bl
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.
GHSA
GHSA-p23g-c2fc-p76q: In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback
Current code
ghsa_unreviewed·2024-02-27
CVE-2021-46920 [MEDIUM] GHSA-p23g-c2fc-p76q: In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback
Current code
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.
Red Hat
kernel: clobbering of SWERR overflow bit on writeback
vendor_redhat·2024-02-27·CVSS 5.5
CVE-2021-46920 [MEDIUM] CWE-353 kernel: clobbering of SWERR overflow bit on writeback
kernel: 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.
A flaw was found in the Linux Kernel. The current code blindly writes over the SWERR and OVERFLOW bits. Write back the bits read so that the driver avoids clobbering the OVERFLOW bit that comes after the register is read.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Pack
Debian
CVE-2021-46920: linux - In the Linux kernel, the following vulnerability has been resolved: dmaengine: ...
vendor_debian·2021·CVSS 5.5
CVE-2021-46920 [MEDIUM] CVE-2021-46920: linux - In the Linux kernel, the following vulnerability has been resolved: dmaengine: ...
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.
Scope: local
bookworm: resolved (fixed in 5.10.38-1)
bullseye: resolved (fixed in 5.10.38-1)
forky: resolved (fixed in 5.10.38-1)
sid: resolved (fixed in 5.10.38-1)
trixie: resolved (fixed in 5.10.38-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/02981a44a0e402089775416371bd2e0c935685f8https://git.kernel.org/stable/c/a5ad12d5d69c63af289a37f05187a0c6fe93553dhttps://git.kernel.org/stable/c/ea941ac294d75d0ace50797aebf0056f6f8f7a7fhttps://git.kernel.org/stable/c/02981a44a0e402089775416371bd2e0c935685f8https://git.kernel.org/stable/c/a5ad12d5d69c63af289a37f05187a0c6fe93553dhttps://git.kernel.org/stable/c/ea941ac294d75d0ace50797aebf0056f6f8f7a7f
2024-02-27
Published