Description
In the Linux kernel, the following vulnerability has been resolved: Input: mtk-pmic-keys - fix possible null pointer dereference In mtk_pmic_keys_probe, the regs parameter is only set if the button is parsed in the device tree. However, on hardware where the button is left floating, that node will most likely be removed not to enable that input. In that case the code will try to dereference a null pointer. Let's use the regs struct instead as it is defined for all supported platforms. Note that it is ok setting the key reg even if that latter is disabled as the interrupt won't be enabled anyway.
Affected products
linux: linux kernel; debian: debian linux
References8
- git.kernel.org/stable/c/09429ddb5a91e9e8f72cd18c012ec4171c2f85ec Patch
- git.kernel.org/stable/c/11cdb506d0fbf5ac05bf55f5afcb3a215c316490 Patch
- git.kernel.org/stable/c/334d74a798463ceec02a41eb0e2354aaac0d6249 Patch
- git.kernel.org/stable/c/619c05fb176c272ac6cecf723446b39723ee6d97 Patch
- git.kernel.org/stable/c/90fa6015ff83ef1c373cc61b7c924ab2bcbe1801 Patch
- lists.debian.org/debian-lts-announce/2025/08/msg00010.html Third Party Advisory
- cert-portal.siemens.com/productcert/html/ssa-019113.html
- cert-portal.siemens.com/productcert/html/ssa-457936.html
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 9 · as of 7 November 2026
- CWE
- CWE-476
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