Vulnerability Details : CVE-2021-46950
In the Linux kernel, the following vulnerability has been resolved:
md/raid1: properly indicate failure when ending a failed write request
This patch addresses a data corruption bug in raid1 arrays using bitmaps.
Without this fix, the bitmap bits for the failed I/O end up being cleared.
Since we are in the failure leg of raid1_end_write_request, the request
either needs to be retried (R1BIO_WriteError) or failed (R1BIO_Degraded).
Products affected by CVE-2021-46950
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-46950
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-46950
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-04-10 |
References for CVE-2021-46950
-
https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5
md/raid1: properly indicate failure when ending a failed write request - kernel/git/stable/linux.git - Linux kernel stable treePatch
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