CVE-2026-72240
mfd: sm501: Fix reference leak on failed device registration
In the Linux kernel, the following vulnerability has been resolved: mfd: sm501: Fix reference leak on failed device registration When platform_device_register() fails in sm501_register_device(), the embedded struct device in pdev has already been initialized by device_initialize(), but the failure path only reports the error and returns without dropping the device reference for the current platform device: sm501_register_device() -> platform_device_register(pdev) -> device_initialize(&pdev->dev) -> setup_pdev_dma_masks(pdev) -> platform_device_add(pdev) This leads to a reference leak when platform_device_register() fails. Fix this by calling platform_device_put() before returning the error. The issue was identified by a static analysis tool I developed and confirmed by manual review.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < e2dac91380a10e9e8d5883fb73ce9d9b390a629c (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < 0baf9d43a7b7b43df2900bd8656e75b725028b6e (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < a3e340d506c1036a747fb0972aebf1063f7ef30e (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < 760a1029692f1d788dc11aa636a3bf432e58b240 (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < 16a42c88c4667fa0bd944e438a667e059551f1f1 (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < 2ff8156fd500d54c61430b6834137fd0a07047ce (affected, git) ≥ b6d6454fdb66f3829af8b92ab06825b6060fdf7e; < 8c2f0b42fc252e1bf1c7746447091a468e784ca1 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
2.6.21 (affected) ≥ 0; < 2.6.21 (unaffected, semver) ≥ 5.10.261; ≤ 5.10.* (unaffected, semver) ≥ 5.15.212; ≤ 5.15.* (unaffected, semver) ≥ 6.1.178; ≤ 6.1.* (unaffected, semver) ≥ 6.6.145; ≤ 6.6.* (unaffected, semver) ≥ 6.12.97; ≤ 6.12.* (unaffected, semver) ≥ 6.18.40; ≤ 6.18.* (unaffected, semver) ≥ 7.1.5; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/bbb1ecaed4ed7680e63d3a0f143f03de32de5d6eCNA: Linux
- https://git.kernel.org/stable/c/e2dac91380a10e9e8d5883fb73ce9d9b390a629cCNA: Linux
- https://git.kernel.org/stable/c/0baf9d43a7b7b43df2900bd8656e75b725028b6eCNA: Linux
- https://git.kernel.org/stable/c/a3e340d506c1036a747fb0972aebf1063f7ef30eCNA: Linux
- https://git.kernel.org/stable/c/760a1029692f1d788dc11aa636a3bf432e58b240CNA: Linux
- https://git.kernel.org/stable/c/16a42c88c4667fa0bd944e438a667e059551f1f1CNA: Linux
- https://git.kernel.org/stable/c/2ff8156fd500d54c61430b6834137fd0a07047ceCNA: Linux
- https://git.kernel.org/stable/c/8c2f0b42fc252e1bf1c7746447091a468e784ca1CNA: Linux
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