Medium [CVE-2026-68224] Fix possible ERR_PTR in enable_streams
This medium-severity Red Hat Linux advisory covers CVE-2026-68224.
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Summary
In the Linux kernel, the following vulnerability has been resolved: media: mali-c55: Fix possible ERR_PTR in enable_streams The media_pad_remote_pad_unique() function returns either a valid pointer or an ERR_PTR() on failure (-ENOTUNIQ if multiple links are enabled, -ENOLINK if no connected pad is found).
The return value was assigned directly to isp->remote_src and dereferenced in the next line without checking for errors, which could lead to an ERR_PTR dereference. Add proper error checking with IS_ERR() before dereferencing the pointer.
Also set isp->remote_src to NULL on error to maintain consistency with other error paths in the function. This vulnerability occurs because the `media_pad_remote_pad_unique()` function's error return value (an ERR_PTR) was not properly checked before being dereferenced in the `enable_streams` function.
A local attacker could exploit this oversight, potentially leading to a system crash and causing a Denial of Service (DoS). This issue affects ARM Mali-C55 ISP. enable_streams does not check ERR_PTR from media_pad_remote_pad_unique().
Embedded Mali-C55 platforms only. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Weakness: CWE-476.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 2 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 2 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 2 days ago·verify at source
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