CVE-2026-23221
bus: fsl-mc: fix use-after-free in driver_override_show()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: fix use-after-free in driver_override_show() The driver_override_show() function reads the driver_override string without holding the device_lock. However, driver_override_store() uses driver_set_override(), which modifies and frees the string while holding the device_lock. This can result in a concurrent use-after-free if the string is freed by the store function while being read by the show function. Fix this by holding the device_lock around the read operation.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 18, 2026 |
| Last Updated | Apr 13, 2026 |
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Affected Versions
Linux / Linux
1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < c71dfb7833db7af652ee8f65011f14c97c47405d 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < c424e72cfa67e7e1477035058a8a659f2c0ea637 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < b1983840287303e0dfb401b1b6cecc5ea7471e90 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < a2ae33e1c6361e960a4d00f7cf75d880b54f9528 1f86a00c1159fd77e66b1bd6ff1a183f4d46f34d < 148891e95014b5dc5878acefa57f1940c281c431
Linux / Linux
5.10
References
git.kernel.org: https://git.kernel.org/stable/c/c71dfb7833db7af652ee8f65011f14c97c47405d git.kernel.org: https://git.kernel.org/stable/c/c424e72cfa67e7e1477035058a8a659f2c0ea637 git.kernel.org: https://git.kernel.org/stable/c/b1983840287303e0dfb401b1b6cecc5ea7471e90 git.kernel.org: https://git.kernel.org/stable/c/dd8ba8c0c3f3916d4ee1e3a09da9cd5caff5d227 git.kernel.org: https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0 git.kernel.org: https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528 git.kernel.org: https://git.kernel.org/stable/c/148891e95014b5dc5878acefa57f1940c281c431