CVE-2022-35414 Information

Description

softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path leading to an io_readx or io_writex crash.

Reference

https://www.mail-archive.com/qemu-devel@nongnu.org/msg895266.html https://gitlab.com/qemu-project/qemu/-/issues/1065 https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4c https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148 https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aa https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482 https://sick.codes/sick-2022-113