CVE-2023-53239
BaseFortify
Publication date: 2025-09-15
Last updated on: 2025-12-03
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.3 (inc) to 5.4.235 (exc) |
| linux | linux_kernel | From 5.5 (inc) to 5.10.173 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.99 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.16 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.2.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a NULL pointer dereference issue in the Linux kernel's drm/msm/mdp5 component. It occurs because the function kzalloc, which allocates memory, may fail and return a NULL pointer. The code did not check for this failure, leading to potential dereferencing of a NULL pointer, which can cause system crashes or instability. The vulnerability has been resolved by adding a check for the kzalloc return value.
How can this vulnerability impact me? :
If exploited, this vulnerability can cause the Linux kernel to dereference a NULL pointer, potentially leading to system crashes, denial of service, or instability in systems using the affected drm/msm/mdp5 component.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Linux kernel to a version that includes the patch fixing the kzalloc NULL pointer dereference in drm/msm/mdp5. Applying the patch from https://patchwork.freedesktop.org/patch/514154/ or upgrading to a kernel version released after 2025-09-15 that contains this fix is recommended.