CVE-2024-49568 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg

When receiving proposal msg in server the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset once exceed the max value there has the chance to access wrong address and crash may happen.

This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.

Reference

https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf