CVE-2022-50767
fbdev: smscufx: Fix several use-after-free bugs
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 3f40852d671072836fb7ae331a1f28a24223c4e8 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 70faf9d9b6cc74418716bbf76fe75bd2da10ad4a 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 5385af2f89bc352fb70753ab41b2bb036190141f 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < cc6a7249842fceda7574ceb63275a2d5e99d2862 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 8d924b262f3178a9b17c17d4306a9f426c508bd9 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < cc67482c9e5f2c80d62f623bcc347c29f9f648e1
Linux / Linux
3.2
References
git.kernel.org: https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f git.kernel.org: https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8 git.kernel.org: https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a git.kernel.org: https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f git.kernel.org: https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86 git.kernel.org: https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862 git.kernel.org: https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9 git.kernel.org: https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1