9.8

CVE-2024-49568: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg

Modified
AliasesUBUNTU-CVE-2024-49568DEBIAN-CVE-2024-49568
Published 11-01-2025Last modified 15-10-2026

Vulnerability summary

CVE-2024-49568 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 47.5% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.57%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 25
MGASA-2025-0030MGASA-2025-0032SUSE-SU-2025:02249-1SUSE-SU-2025:02254-1SUSE-SU-2025:02307-1SUSE-SU-2025:02333-1

Timeline

  1. 11-01-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.57% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 9cc0170ae646876aa5de2f0cad3066ce53e86f27 | ≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 49798283fce4c1a24fb1ba4c7c39127739535571 | ≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 690b9a8db9460d065785548e43fd6a02d247c1b7 | ≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 295a92e3df32e72aff0f4bc25c310e349d07ffbf | ≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 42f6beb2d5779429417b5f8115a4e3fa695d2a6c | ≥ 8c3dca341aea885249e08856c4380300b75d2cf5, < 7863c9f3d24ba49dbead7e03dfbe40deb5888fdf | 5.10
  • linux_kernel≥ 5.10, < 6.6.68 | ≥ 6.7, < 6.12.7 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.8-1

3 vendors · 127 products

References

26 links
Show all 26 references