CVE-2024-49568
Published: January 13, 2025Last modified: October 6, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf
- https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c
- https://git.kernel.org/stable/c/49798283fce4c1a24fb1ba4c7c39127739535571
- https://git.kernel.org/stable/c/690b9a8db9460d065785548e43fd6a02d247c1b7
- https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf
- https://git.kernel.org/stable/c/9cc0170ae646876aa5de2f0cad3066ce53e86f27