In the Linux kernel, the following vulnerability has been resolved: ppdev: Add an error check in register_device In register_device, the return value of ida_simple_get is unchecked, in witch ida_simple_get will use an invalid index value. To address this issue, index should be checked after ida_simple_get. When the index value is abnormal, a warning message should be printed, the port should be dropped, and the value should be recorded.
https://git.kernel.org/stable/c/fbf740aeb86a4fe82ad158d26d711f2f3be79b3e
https://git.kernel.org/stable/c/ec3468221efec6660ff656e9ebe51ced3520fc57
https://git.kernel.org/stable/c/df9329247dbbf00f6057e002139ab3fa529ad828
https://git.kernel.org/stable/c/d32caf51379a4d71db03d3d4d7c22d27cdf7f68b
https://git.kernel.org/stable/c/b8c6b83cc3adff3ddf403c8c7063fe6d08b2b9d9
https://git.kernel.org/stable/c/b65d0410b879af0295d22438a4a32012786d152a
https://git.kernel.org/stable/c/65cd017d43f4319a56747d38308b0a24cf57299e
https://git.kernel.org/stable/c/5d5b24edad1107a2ffa99058f20f6aeeafeb5d39