cve-2024-45023
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2024-12-19 09:20
Severity ?
Summary
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().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2febf5fdbf5d9a52ddc3e986971c8609b1582d67Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c916ca35308d3187c9928664f9be249b22a3a701Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.9
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: Fix data corruption for degraded array with slow disk\n\nread_balance() will avoid reading from slow disks as much as possible,\nhowever, if valid data only lands in slow disks, and a new normal disk\nis still in recovery, unrecovered data can be read:\n\nraid1_read_request\n read_balance\n  raid1_should_read_first\n  -\u003e return false\n  choose_best_rdev\n  -\u003e normal disk is not recovered, return -1\n  choose_bb_rdev\n  -\u003e missing the checking of recovery, return the normal disk\n -\u003e read unrecovered data\n\nRoot cause is that the checking of recovery is missing in\nchoose_bb_rdev(). Hence add such checking to fix the problem.\n\nAlso fix similar problem in choose_slow_rdev()."
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    "dateReserved": "2024-08-21T05:34:56.684Z",
    "dateUpdated": "2024-12-19T09:20:25.676Z",
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