CVE-2025-23158 Information

Description

In the Linux kernel the following vulnerability has been resolved:

media: venus: hfi: add check to handle incorrect queue size

qsize represents size of shared queued between driver and video firmware. Firmware can modify this value to an invalid large value. In such situation empty_space will be bigger than the space actually available. Since new_wr_idx is not checked so the following code will result in an OOB write. … qsize = qhdr->q_size

if (wr_idx >= rd_idx) empty_space = qsize - (wr_idx - rd_idx) …. if (new_wr_idx < qsize) memcpy(wr_ptr packet dwords « 2) –> OOB write

Add check to ensure qsize is within the allocated size while reading and writing packets into the queue.

Reference

https://git.kernel.org/stable/c/101a86619aab42bb61f2253bbf720121022eab86 https://git.kernel.org/stable/c/40084302f639b3fe954398c5ba5ee556b7242b54 https://git.kernel.org/stable/c/679424f8b31446f90080befd0300ea915485b096 https://git.kernel.org/stable/c/69baf245b23e20efda0079238b27fc63ecf13de1 https://git.kernel.org/stable/c/cf5f7bb4e0d786f4d9d50ae6b5963935eab71d75 https://git.kernel.org/stable/c/edb89d69b1438681daaf5ca90aed3242df94cc96