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CVE
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CVE-2021-46950Date: (C)2024-02-28   (M)2024-06-06


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).

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.8CVSS Score :
Exploit Score: 1.8Exploit Score:
Impact Score: 5.9Impact Score:
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: LOCALAccess Vector:
Attack Complexity: LOWAccess Complexity:
Privileges Required: LOWAuthentication:
User Interaction: NONEConfidentiality:
Scope: UNCHANGEDIntegrity:
Confidentiality: HIGHAvailability:
Integrity: HIGH 
Availability: HIGH 
  
Reference:
https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5
https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd
https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd
https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515
https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382
https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40
https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f

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