CVE-2022-50767
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 3f40852d671072836fb7ae331a1f28a24223c4e8 | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 70faf9d9b6cc74418716bbf76fe75bd2da10ad4a | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 5385af2f89bc352fb70753ab41b2bb036190141f | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86 | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < cc6a7249842fceda7574ceb63275a2d5e99d2862 | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < 8d924b262f3178a9b17c17d4306a9f426c508bd9 | affected |
| Linux | Linux | 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 < cc67482c9e5f2c80d62f623bcc347c29f9f648e1 | affected |
| Linux | Linux | 3.2 | affected |
| Linux | Linux | 0 < 3.2 | unaffected |
| Linux | Linux | 4.9.332 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.298 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.264 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.223 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.153 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.77 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.7 <= 6.0.* | unaffected |
| Linux | Linux | 6.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/6f2075ea883e5d7730d0c9ebb1bb8e7a1a7e953f
- https://git.kernel.org/stable/c/3f40852d671072836fb7ae331a1f28a24223c4e8
- https://git.kernel.org/stable/c/70faf9d9b6cc74418716bbf76fe75bd2da10ad4a
- https://git.kernel.org/stable/c/5385af2f89bc352fb70753ab41b2bb036190141f
- https://git.kernel.org/stable/c/d9ddfeb01fb95ffbbc7031d46a5ee2a5e45cbb86
- https://git.kernel.org/stable/c/cc6a7249842fceda7574ceb63275a2d5e99d2862
- https://git.kernel.org/stable/c/8d924b262f3178a9b17c17d4306a9f426c508bd9
- https://git.kernel.org/stable/c/cc67482c9e5f2c80d62f623bcc347c29f9f648e1
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