CVE-2021-47433

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix abort logic in btrfs_replace_file_extents Error injection testing uncovered a case where we'd end up with a corrupt file system with a missing extent in the middle of a file. This occurs because the if statement to decide if we should abort is wrong. The only way we would abort in this case is if we got a ret != -EOPNOTSUPP and we called from the file clone code. However the prealloc code uses this path too. Instead we need to abort if there is an error, and the only error we _don't_ abort on is -EOPNOTSUPP and only if we came from the clone file code.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*

History

25 Sep 2025, 16:02

Type Values Removed Values Added
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/0e309e1152fc34ef75991d9d69b165dbf75bf26c - () https://git.kernel.org/stable/c/0e309e1152fc34ef75991d9d69b165dbf75bf26c - Patch
References () https://git.kernel.org/stable/c/0e32a2b85c7d92ece86c17dfef390c5ed79c6378 - () https://git.kernel.org/stable/c/0e32a2b85c7d92ece86c17dfef390c5ed79c6378 - Patch
References () https://git.kernel.org/stable/c/4afb912f439c4bc4e6a4f3e7547f2e69e354108f - () https://git.kernel.org/stable/c/4afb912f439c4bc4e6a4f3e7547f2e69e354108f - Patch
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5

Information

Published : 2024-05-22 07:15

Updated : 2025-09-25 16:02


NVD link : CVE-2021-47433

Mitre link : CVE-2021-47433

CVE.ORG link : CVE-2021-47433


JSON object : View

Products Affected

linux

  • linux_kernel