CVE-2023-53380
md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check. Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 18, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ee37d7314a32ab6809eacc3389bad0406c69a81f < 45fa023b3334a7ae6f6c4eb977295804222dfa28 ee37d7314a32ab6809eacc3389bad0406c69a81f < 2990e2ece18dd4cca71b3109c80517ad94adb065 ee37d7314a32ab6809eacc3389bad0406c69a81f < f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f ee37d7314a32ab6809eacc3389bad0406c69a81f < 222cc459d59857ee28a5366dc225ab42b22f9272 ee37d7314a32ab6809eacc3389bad0406c69a81f < b5015b97adda6a24dd3e713c63e521ecbeff25c6 ee37d7314a32ab6809eacc3389bad0406c69a81f < 144c7fd008e0072b0b565f1157eec618de54ca8a ee37d7314a32ab6809eacc3389bad0406c69a81f < 34817a2441747b48e444cb0e05d84e14bc9443da
Linux / Linux
4.20
References
git.kernel.org: https://git.kernel.org/stable/c/45fa023b3334a7ae6f6c4eb977295804222dfa28 git.kernel.org: https://git.kernel.org/stable/c/2990e2ece18dd4cca71b3109c80517ad94adb065 git.kernel.org: https://git.kernel.org/stable/c/f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f git.kernel.org: https://git.kernel.org/stable/c/222cc459d59857ee28a5366dc225ab42b22f9272 git.kernel.org: https://git.kernel.org/stable/c/b5015b97adda6a24dd3e713c63e521ecbeff25c6 git.kernel.org: https://git.kernel.org/stable/c/144c7fd008e0072b0b565f1157eec618de54ca8a git.kernel.org: https://git.kernel.org/stable/c/34817a2441747b48e444cb0e05d84e14bc9443da