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CVE-2024-49568

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.68, 6.12.7
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 9cc0170ae646876aa5de2f0cad3066ce53e86f27; From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 49798283fce4c1a24fb1ba4c7c39127739535571; From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 690b9a8db9460d065785548e43fd6a02d247c1b7; From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 295a92e3df32e72aff0f4bc25c310e349d07ffbf; From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 42f6beb2d5779429417b5f8115a4e3fa695d2a6c; From 8c3dca341aea885249e08856c4380300b75d2cf5 · fixed in 7863c9f3d24ba49dbead7e03dfbe40deb5888fdf

  • Linux Linux

    5.10

  • KernelLinux

    From 5.10.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.68; From 6.7.0 · fixed in 6.12.7

References 6

git.kernel.org