CVE-2021-46950

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).

Reserved 2024-02-25 | Published 2024-02-27 | Updated 2024-12-19 | Assigner Linux

Product status

Default status
unaffected

900c531899f5ee2321bef79e20055787bc73251d before 12216d0919b64ee2ea5dc7a50e455670f44383d5
affected

1cd972e0a10760a1fa27d9830d78446c891c23b6 before a6e17cab00fc5bf85472434c52ac751426257c6f
affected

eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad before 6920cef604fa57f9409e3960413e9cc11f5c5a40
affected

eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad before 661061a45e32d8b2cc0e306da9f169ad44011382
affected

eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad before 59452e551784b7a57a45d971727e9db63b192515
affected

eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad before 538244fba59fde17186322776247cd9c05be86dd
affected

eeba6809d8d58908b5ed1b5ceb5fcb09a98a7cad before 2417b9869b81882ab90fd5ed1081a1cb2d4db1dd
affected

Default status
affected

5.4
affected

Any version before 5.4
unaffected

4.14.233
unaffected

4.19.191
unaffected

5.4.118
unaffected

5.10.36
unaffected

5.11.20
unaffected

5.12.3
unaffected

5.13
unaffected

References

git.kernel.org/...c/12216d0919b64ee2ea5dc7a50e455670f44383d5

git.kernel.org/...c/a6e17cab00fc5bf85472434c52ac751426257c6f

git.kernel.org/...c/6920cef604fa57f9409e3960413e9cc11f5c5a40

git.kernel.org/...c/661061a45e32d8b2cc0e306da9f169ad44011382

git.kernel.org/...c/59452e551784b7a57a45d971727e9db63b192515

git.kernel.org/...c/538244fba59fde17186322776247cd9c05be86dd

git.kernel.org/...c/2417b9869b81882ab90fd5ed1081a1cb2d4db1dd

cve.org (CVE-2021-46950)

nvd.nist.gov (CVE-2021-46950)

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