CVE-2021-46950
High
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).
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 27, 2024
First seenFeb 27, 2024
How to fix
Update
- linux linux_kernel4.14.233, 4.19.191, 5.3, 5.4.118, 5.10.36, 5.11.20, 5.12.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.14.147 ≤ v < 4.14.233, 4.19.77 ≤ v < 4.19.191, 5.2.19 ≤ v < 5.3, 5.3.4 ≤ v < 5.4.118, 5.5 ≤ v < 5.10.36, 5.11 ≤ v < 5.11.20, 5.12 ≤ v < 5.12.3 | 4.14.233, 4.19.191, 5.3, 5.4.118, 5.10.36, 5.11.20, 5.12.3 |
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