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The squashfs module of the Linux kernel (2.6.x) fails to properly handle corrupted fs structures, leading to a denial of service and possible data corruption condition. A specially crafted squashfs image will cause the kernel to double free a buffer when a read operation is performed on the corrupted filesystem.

The squashfs module of the Linux kernel (2.6.x) fails to properly handle corrupted fs structures, leading to a denial of service and possible data corruption condition. A specially crafted squashfs image will cause the kernel to double free a buffer when a read operation is performed on the corrupted filesystem.