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CVE-2022-50767

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CVE-2022-50767

Published: Dec 24, 2025

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - < 6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f
affected
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - < 3f40852d671072836fb7ae331a1f28a24223c4e8
affected
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - < 70faf9d9b6cc74418716bbf76fe75bd2da10ad4a
affected
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - < 5385af2f89bc352fb70753ab41b2bb036190141f
affected
3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - < d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86

+3 more versions

Linux

Linux

affected
3.2
unaffected
0 - < 3.2
unaffected
4.9.332 - <= 4.9.*
unaffected
4.14.298 - <= 4.14.*
unaffected
4.19.264 - <= 4.19.*

+5 more versions

References

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