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CVE-2021-46950

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CVE-2021-46950

Published: Feb 27, 2024

Modified: May 23, 2026

PUBLISHED

Description

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).

VendorProductVersions

Linux

Linux

affected
900c531899f5ee2321bef79e20055787bc73251d - < 12216d0919b64ee2ea5dc7a50e455670f44383d5
affected
1cd972e0a10760a1fa27d9830d78446c891c23b6 - < a6e17cab00fc5bf85472434c52ac751426257c6f
affected
eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad - < 6920cef604fa57f9409e3960413e9cc11f5c5a40
affected
eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad - < 661061a45e32d8b2cc0e306da9f169ad44011382
affected
eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad - < 59452e551784b7a57a45d971727e9db63b192515

+8 more versions

Linux

Linux

affected
5.4
unaffected
0 - < 5.4
unaffected
4.14.233 - <= 4.14.*
unaffected
4.19.191 - <= 4.19.*
unaffected
5.4.118 - <= 5.4.*

+4 more versions

References

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