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9df2fbe563
In cedrus_init_ctrls(), the V4L2 control handler is initialized before
allocating memory for ctx->ctrls. If this allocation fails, the function
returns -ENOMEM without freeing the previously allocated handler
resources, leading to a memory leak.
Fix this by calling v4l2_ctrl_handler_free() on the ctx->ctrls allocation
failure path.
The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still
present in v7.1.1.
An x86_64 allyesconfig build showed no new warnings. As we do not have an
Allwinner SoC or board with a Cedrus VPU available to test with, no
runtime testing was able to be performed.
Fixes:
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|---|---|---|
| .. | ||
| axis-fifo | ||
| fbtft | ||
| greybus | ||
| iio | ||
| media | ||
| most | ||
| nvec | ||
| octeon | ||
| rtl8723bs | ||
| sm750fb | ||
| vc04_services | ||
| vme_user | ||
| Kconfig | ||
| Makefile | ||