CVE-2024-49568

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

State: Published
Severity: 9.8 Critical
Published: Jan 11, 2025
Updated: Oct 15, 2026
Reserved: Jan 11, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	8c3dca341aea885249e08856c4380300b75d2cf5 to before 9cc0170ae646876aa5de2f0cad3066ce53e86f27Affected 8c3dca341aea885249e08856c4380300b75d2cf5 to before 49798283fce4c1a24fb1ba4c7c39127739535571Affected 8c3dca341aea885249e08856c4380300b75d2cf5 to before 690b9a8db9460d065785548e43fd6a02d247c1b7Affected 8c3dca341aea885249e08856c4380300b75d2cf5 to before 295a92e3df32e72aff0f4bc25c310e349d07ffbfAffected 8c3dca341aea885249e08856c4380300b75d2cf5 to before 42f6beb2d5779429417b5f8115a4e3fa695d2a6cAffected 8c3dca341aea885249e08856c4380300b75d2cf5 to before 7863c9f3d24ba49dbead7e03dfbe40deb5888fdfAffected
LinuxLinux	5.10Affected before 5.10Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.68 through 6.6.Not affected 6.12.7 through 6.12.*Not affected 6.13 and laterNot affected

Product

Versions

LinuxLinux

8c3dca341aea885249e08856c4380300b75d2cf5 to before 9cc0170ae646876aa5de2f0cad3066ce53e86f27Affected
8c3dca341aea885249e08856c4380300b75d2cf5 to before 49798283fce4c1a24fb1ba4c7c39127739535571Affected
8c3dca341aea885249e08856c4380300b75d2cf5 to before 690b9a8db9460d065785548e43fd6a02d247c1b7Affected
8c3dca341aea885249e08856c4380300b75d2cf5 to before 295a92e3df32e72aff0f4bc25c310e349d07ffbfAffected
8c3dca341aea885249e08856c4380300b75d2cf5 to before 42f6beb2d5779429417b5f8115a4e3fa695d2a6cAffected
8c3dca341aea885249e08856c4380300b75d2cf5 to before 7863c9f3d24ba49dbead7e03dfbe40deb5888fdfAffected

LinuxLinux

5.10Affected
before 5.10Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.68 through 6.6.*Not affected
6.12.7 through 6.12.*Not affected
6.13 and laterNot affected

References

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