CVE-2026-45863
In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The dw_i3c_master_i2c_xfers() function allocates memory for the xfer structure using dw_i3c_master_alloc_xfer(). If pm_runtime_resume_and_get() fails, the function returns without freeing the allocated xfer, resulting in a memory leak. Add a dw_i3c_master_free_xfer() call to the error path to ensure the allocated memory is properly freed. Compile tested only. Issue found using a prototype static analysis tool and code review.
Affected versions
Linux kernel versions
6.11
and later are affected. Fixed in
6.12.75,
6.18.14,
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-45863 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/140a45bd4f6db7d1b30cab967d29689b946c52fa
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PatchKernel patch commithttps://git.kernel.org/stable/c/2537089413514caaa9a5fdeeac3a34d45100f747
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PatchKernel patch commithttps://git.kernel.org/stable/c/8e71414e252c1cb235911008a98fd47927d3a55c
Frequently asked questions
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What is CVE-2026-45863?
CVE-2026-45863 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.11 onward and has been patched in 6.12.75, 6.18.14, 6.19.4 and others. CVE-2026-45863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-45863?
Yes — CVE-2026-45863 has been patched. Fixed versions include 6.12.75, 6.18.14, 6.19.4 and others. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-45863 actively exploited?
No — CVE-2026-45863 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.