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CVE-2023-52840
Input: synaptics-rmi4 - fix use after free in rmi_unregister_function()
High7.8EPSS 0.24%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < 2f236d8638f5b43e0c72919a6a27fe286c32053f
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < 50d12253666195a14c6cd2b81c376e2dbeedbdff
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < 6c71e065befb2fae8f1461559b940c04e1071bd5
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < 303766bb92c5c225cf40f9bbbe7e29749406e2f2
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < 7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < cc56c4d17721dcb10ad4e9c9266e449be1462683
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < c8e639f5743cf4b01f8c65e0df075fe4d782b585
- affected 24d28e4f1271cb2f91613dada8f2acccd00eff56 – < eb988e46da2e4eae89f5337e047ce372fe33d5b1
- affected 4.18
- unaffected < 4.18
- unaffected 4.19.299 – ≤ 4.19.*
- unaffected 5.4.261 – ≤ 5.4.*
- unaffected 5.10.201 – ≤ 5.10.*
- unaffected 5.15.139 – ≤ 5.15.*
- unaffected 6.1.63 – ≤ 6.1.*
- unaffected 6.5.12 – ≤ 6.5.*
- unaffected 6.6.2 – ≤ 6.6.*
- unaffected 6.7 – ≤ *
References (8)
- https://git.kernel.org/stable/c/2f236d8638f5b43e0c72919a6a27fe286c32053f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/50d12253666195a14c6cd2b81c376e2dbeedbdff (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/6c71e065befb2fae8f1461559b940c04e1071bd5 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/303766bb92c5c225cf40f9bbbe7e29749406e2f2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/cc56c4d17721dcb10ad4e9c9266e449be1462683 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/c8e639f5743cf4b01f8c65e0df075fe4d782b585 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/eb988e46da2e4eae89f5337e047ce372fe33d5b1 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2023-52840)Record last updated .