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/
References
Configurations
Configuration 1 (hide)
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History
10 Jun 2026, 19:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/47cbfe2608314b833ad61a65827d8fb363bc2d2d - Patch | |
| References | () https://git.kernel.org/stable/c/697e1a9559f6962f999cc4c748c2ffffcc0a7a7a - Patch | |
| References | () https://git.kernel.org/stable/c/b079e85c91f446f29e808d8291189e897f1884ff - Patch | |
| References | () https://git.kernel.org/stable/c/c57c861956b89f2e2528e6384d51e2dedd915809 - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CWE | CWE-476 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
28 May 2026, 10:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-28 10:16
Updated : 2026-06-17 10:53
NVD link : CVE-2026-46211
Mitre link : CVE-2026-46211
CVE.ORG link : CVE-2026-46211
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference