Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() The put_device() calls rmi_release_function() which frees "fn" so the dereference on the next line "fn->num_of_irqs" is a use after free. Move the put_device() to the end to fix this.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.18, < 4.19.299 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2f236d8638f5b43e0c72919a6a27fe286c32053fPatch
- https://git.kernel.org/stable/c/303766bb92c5c225cf40f9bbbe7e29749406e2f2Patch
- https://git.kernel.org/stable/c/50d12253666195a14c6cd2b81c376e2dbeedbdffPatch
- https://git.kernel.org/stable/c/6c71e065befb2fae8f1461559b940c04e1071bd5Patch
- https://git.kernel.org/stable/c/7082b1fb5321037bc11ba1cf2d7ed23c6b2b521fPatch
- https://git.kernel.org/stable/c/c8e639f5743cf4b01f8c65e0df075fe4d782b585Patch
- https://git.kernel.org/stable/c/cc56c4d17721dcb10ad4e9c9266e449be1462683Patch
- https://git.kernel.org/stable/c/eb988e46da2e4eae89f5337e047ce372fe33d5b1Patch
- https://git.kernel.org/stable/c/2f236d8638f5b43e0c72919a6a27fe286c32053fPatch
- https://git.kernel.org/stable/c/303766bb92c5c225cf40f9bbbe7e29749406e2f2Patch
- https://git.kernel.org/stable/c/50d12253666195a14c6cd2b81c376e2dbeedbdffPatch
- https://git.kernel.org/stable/c/6c71e065befb2fae8f1461559b940c04e1071bd5Patch
- https://git.kernel.org/stable/c/7082b1fb5321037bc11ba1cf2d7ed23c6b2b521fPatch
- https://git.kernel.org/stable/c/c8e639f5743cf4b01f8c65e0df075fe4d782b585Patch
- https://git.kernel.org/stable/c/cc56c4d17721dcb10ad4e9c9266e449be1462683Patch
FAQ
What is CVE-2023-52840?
CVE-2023-52840 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() The put_device() calls rmi_release_function() which frees ...
How severe is CVE-2023-52840?
CVE-2023-52840 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-52840?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.