CVE-2021-46950 (GCVE-0-2021-46950)
Vulnerability from cvelistv5
Published
2024-02-27 18:40
Modified
2025-05-07 20:05
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40 Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67 https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/12216d0919b64ee2ea5dc7a50e455670f44383d5 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/538244fba59fde17186322776247cd9c05be86dd Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/59452e551784b7a57a45d971727e9db63b192515 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/661061a45e32d8b2cc0e306da9f169ad44011382 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/6920cef604fa57f9409e3960413e9cc11f5c5a40 Patch
af854a3a-2127-422b-91ae-364da2661108 https://git.kernel.org/stable/c/a6e17cab00fc5bf85472434c52ac751426257c6f Patch
Impacted products
Vendor Product Version
Linux Linux Version: 900c531899f5ee2321bef79e20055787bc73251d
Version: 1cd972e0a10760a1fa27d9830d78446c891c23b6
Version: eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad
Version: eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad
Version: eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad
Version: eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad
Version: eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad
Version: a1f4fcb880988a96c0b2d5c3305ffc4e49eca0ed
Version: 344242d50f468a250bf4b6136934392758412ed8
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Este parche soluciona un error de corrupci\u00f3n de datos en matrices raid1 que utilizan mapas de bits. Sin esta soluci\u00f3n, los bits del mapa de bits de la E/S fallida terminan borr\u00e1ndose. 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    }
  }
}


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