CVEvulnerability
CVE-2026-68212
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-08-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
media: saa7134: Fix a possible memory leak in saa7134_video_init1
In saa7134_video_init1(), the return value of the first
saa7134_pgtable_alloc() is not checked. If it fails, the function
continues as if successful, leaving the driver with an invalid page
table. Additionally, if vb2_queue_init() for the VBI queue fails after
the video queue page table has been allocated, the allocated memory is
not freed before returning. The second saa7134_pgtable_alloc() also
lacks a return value check. Errors occur during device probing before
the device is fully registered, the normal cleanup path in
saa7134_finidev() is not executed, leading to memory leaks and
potential use of uninitialized DMA resources.
Check the return value of both saa7134_pgtable_alloc() calls and
propagate errors. On failure of any later step, free allocated page
tables to avoid memory leaks. Ensure control handlers are also
released on error to prevent further resource leakage.
Found by code review.
References
- https://git.kernel.org/stable/c/134c979dd721e22f196d71026432ee37d1f5cc38 git.kernel.org
- https://git.kernel.org/stable/c/1731dd61b6c0b7435c139951d2b7eada6c9667a8 git.kernel.org
- https://git.kernel.org/stable/c/34082a48376fd225a5c3d971c8962eb1320a54e0 git.kernel.org
- https://git.kernel.org/stable/c/44e16e3e022bf4a26adf03bc05a6dd5ffc34ef6d git.kernel.org
- https://git.kernel.org/stable/c/b7936e8cbec1b96b126058eeb005e5b9111df38e git.kernel.org
- https://git.kernel.org/stable/c/e1ef361ee31d1dba5dcae2cdd50f9c1352df0c23 git.kernel.org
- https://git.kernel.org/stable/c/e773b1d4bd191e7520bf9e02cb676d62c1b20556 git.kernel.org
- https://git.kernel.org/stable/c/f86ed548386e3050e5f8f25b450d09dc009d9a88 git.kernel.org