CVE-2024-49568

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

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Jan 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Linux · Linux

References

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