Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: md/raid1: Fix data corruption for degraded array with slow disk read_balance() will avoid reading from slow disks as much as possible, however, if valid data only lands in slow disks, and a new normal disk is still in recovery, unrecovered data can be read: raid1_read_request read_balance raid1_should_read_first -> return false choose_best_rdev -> normal disk is not recovered, return -1 choose_bb_rdev -> missing the checking of recovery, return the normal disk -> read unrecovered data Root cause is that the checking of recovery is missing in choose_bb_rdev(). Hence add such checking to fix the problem. Also fix similar problem in choose_slow_rdev().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected dfa8ecd167c1753d4fc24a517e1d79c603183c94 before 2febf5fdbf5d9a52ddc3e986971c8609b1582d67; affected dfa8ecd167c1753d4fc24a517e1d79c603183c94 before c916ca35308d3187c9928664f9be249b22a3a701 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.10.7 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2febf5fdbf5d9a52ddc3e986971c8609b1582d67
- https://git.kernel.org/stable/c/c916ca35308d3187c9928664f9be249b22a3a701
ADP enrichment
No English description supplied.
No references supplied.