Description
In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Treat remaining == 0 as error in find_and_map_user_pages() Currently, if find_and_map_user_pages() takes a DMA xfer request from the user with a length field set to 0, or in a rare case, the host receives QAIC_TRANS_DMA_XFER_CONT from the device where resources->xferred_dma_size is equal to the requested transaction size, the function will return 0 before allocating an sgt or setting the fields of the dma_xfer struct. In that case, encode_addr_size_pairs() will try to access the sgt which will lead to a general protection fault. Return an EINVAL in case the user provides a zero-sized ALP, or the device requests continuation after all of the bytes have been transferred.
Product status
96d3c1cadedb6ae2e8965e19cd12caa244afbd9c (git) before 48b1d42286bfef7628b1d6c8c28d4e456c90f725
96d3c1cadedb6ae2e8965e19cd12caa244afbd9c (git) before 551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede
96d3c1cadedb6ae2e8965e19cd12caa244afbd9c (git) before 1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6
96d3c1cadedb6ae2e8965e19cd12caa244afbd9c (git) before 11f08c30a3e4157305ba692f1d44cca5fc9a8fca
d410a96e5cb8c1ec7049c83f2edcd8bbfaf5d9b3 (git)
6.5
Any version before 6.5
6.6.114 (semver)
6.12.55 (semver)
6.17.5 (semver)
6.18 (original_commit_for_fix)
References
git.kernel.org/...c/48b1d42286bfef7628b1d6c8c28d4e456c90f725
git.kernel.org/...c/551f1dfbcb7f3e6ed07f9d6c8c1c64337fcd0ede
git.kernel.org/...c/1ab9733d14cc9987cc5dcd1f0ad1f416e302e2e6
git.kernel.org/...c/11f08c30a3e4157305ba692f1d44cca5fc9a8fca
