CVE-2024-47408 — In the Linux kernel, the following vulnerability has been resolved: net/smc: check smcd_v2_ext_offset…

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: check smcd_v2_ext_offset when receiving proposal msg When receiving proposal msg in server, the field smcd_v2_ext_offset in proposal msg is from the remote client and can not be fully trusted. Once the value of smcd_v2_ext_offset exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the value of smcd_v2_ext_offset before using it.

References

• https://git.kernel.org/stable/c/35da53027c1f2efdd7d0177dc00584134204761a
• https://git.kernel.org/stable/c/48d5a8a304a643613dab376a278f29d3e22f7c34
• https://git.kernel.org/stable/c/935caf324b445fe73d7708fae6f7176fb243f357
• https://git.kernel.org/stable/c/9ab332deb671d8f7e66d82a2ff2b3f715bc3a4ad
• https://git.kernel.org/stable/c/a36364d8d4fabb105001f992fb8ff2d3546203d6
• https://git.kernel.org/stable/c/e1cc8be2a785a8f1ce1f597f3e608602c5fccd46
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html