CVE-2024-49568 Details
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.
A vulnerability has been identified in the Linux kernel's net/smc component, where the server improperly trusts certain fields in proposal messages received from remote clients. Specifically, the v2_ext_offset, eid_cnt, and ism_gid_cnt fields can be manipulated, potentially leading to access violations and crashes. The issue arises because the v2_ext_offset field, if exceeding a maximum value, can cause the kernel to read from incorrect memory addresses. This vulnerability has been addressed by implementing checks on these fields before they are processed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/295a92e3df32e72aff0f4bc25c310e349d07ffbf | kernel.org | Patch |
| https://git.kernel.org/stable/c/42f6beb2d5779429417b5f8115a4e3fa695d2a6c | kernel.org | Patch |
| https://git.kernel.org/stable/c/7863c9f3d24ba49dbead7e03dfbe40deb5888fdf | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.10, < 6.6.68 >= 6.7, < 6.12.7 6.13 rc1 6.13 rc2 6.13 rc3 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Oct 15, 2025 | Initial Analysis | [email protected] |
| Jan 11, 2025 | New CVE Received | kernel.org |