CVE-2026-46211 (GCVE-0-2026-46211)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:40 – Updated: 2026-05-28 09:40
VLAI
Title
drm/msm/gem: fix error handling in msm_ioctl_gem_info_get_metadata()
Summary
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/
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9902cb999e4e913d98e8afe4b36c08e4a793e1ce , < 697e1a9559f6962f999cc4c748c2ffffcc0a7a7a (git)
Affected: 9902cb999e4e913d98e8afe4b36c08e4a793e1ce , < c57c861956b89f2e2528e6384d51e2dedd915809 (git)
Affected: 9902cb999e4e913d98e8afe4b36c08e4a793e1ce , < b079e85c91f446f29e808d8291189e897f1884ff (git)
Affected: 9902cb999e4e913d98e8afe4b36c08e4a793e1ce , < 47cbfe2608314b833ad61a65827d8fb363bc2d2d (git)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.12.90 , ≤ 6.12.* (semver)
Unaffected: 6.18.32 , ≤ 6.18.* (semver)
Unaffected: 7.0.9 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/gem: fix error handling in msm_ioctl_gem_info_get_metadata()\n\nmsm_ioctl_gem_info_get_metadata() always returns 0 regardless of\nerrors. When copy_to_user() fails or the user buffer is too small,\nthe error code stored in ret is ignored because the function\nunconditionally returns 0. This causes userspace to believe the\nioctl succeeded when it did not.\n\nAdditionally, kmemdup() can return NULL on allocation failure, but\nthe return value is not checked. This leads to a NULL pointer\ndereference in the subsequent copy_to_user() call.\n\nAdd the missing NULL check for kmemdup() and return ret instead of 0.\n\nNote that the SET counterpart (msm_ioctl_gem_info_set_metadata)\ncorrectly returns ret.\n\nPatchwork: https://patchwork.freedesktop.org/patch/714478/"
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    "dateReserved": "2026-05-13T15:03:33.105Z",
    "dateUpdated": "2026-05-28T09:40:28.890Z",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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