CVE-2026-46211
In the Linux kernel, the following vulnerability has been resolved: drm/msm/gem: fix error handling in msm_ioctl_gem_info_get_metadata() msm_ioctl_gem_info_get_metadata() always returns 0 regardless of errors. When copy_to_user() fails or the user buffer is too small, the error code stored in ret is ignored because the function unconditionally returns 0. This causes userspace to believe the ioctl succeeded when it did not. Additionally, kmemdup() can return NULL on allocation failure, but the return value is not checked. This leads to a NULL pointer dereference in the subsequent copy_to_user() call. Add the missing NULL check for kmemdup() and return ret instead of 0. Note that the SET counterpart (msm_ioctl_gem_info_set_metadata) correctly returns ret. Patchwork: https://patchwork.freedesktop.org/patch/714478/
Affected versions
Linux kernel versions
6.8
and later are affected. Fixed in
6.12.90,
6.18.32,
7.0.9,
7.1-rc1
and their respective stable series.
References
The following references provide additional information about CVE-2026-46211 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/47cbfe2608314b833ad61a65827d8fb363bc2d2d
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PatchKernel patch commithttps://git.kernel.org/stable/c/697e1a9559f6962f999cc4c748c2ffffcc0a7a7a
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PatchKernel patch commithttps://git.kernel.org/stable/c/b079e85c91f446f29e808d8291189e897f1884ff
Frequently asked questions
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What is CVE-2026-46211?
CVE-2026-46211 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.90, 6.18.32, 7.0.9 and others. CVE-2026-46211 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-2026-46211?
Yes — CVE-2026-46211 has been patched. Fixed versions include 6.12.90, 6.18.32, 7.0.9 and others. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-46211 actively exploited?
No — CVE-2026-46211 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.