9.8

CVE-2024-47408: net/smc: check smcd_v2_ext_offset when receiving proposal msg

Modified
AliasesUBUNTU-CVE-2024-47408DEBIAN-CVE-2024-47408
Published 11-01-2025Last modified 03-10-2026

Vulnerability summary

CVE-2024-47408 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.4% 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
0.64%
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 38 · Related 37
DLA-4076-1MGASA-2025-0030MGASA-2025-0032SUSE-SU-2025:01919-1SUSE-SU-2025:01951-1SUSE-SU-2025:01967-1

Timeline

  1. 11-01-2025
    PublishedVulnerability first disclosed.
  2. 03-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: check smcd_v2_ext_offset when receiving proposal msg When receiving proposal msg in server, the field smcd_v2_ext_offset in proposal msg is from the remote client and can not be fully trusted. Once the value of smcd_v2_ext_offset exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the value of smcd_v2_ext_offset before using it.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.64% 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.

Ubuntu123 products
  • linux< 5.15.0-135.146 | < 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1080.87 | < 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < 35da53027c1f2efdd7d0177dc00584134204761a | ≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < a36364d8d4fabb105001f992fb8ff2d3546203d6 | ≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < e1cc8be2a785a8f1ce1f597f3e608602c5fccd46 | ≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < 935caf324b445fe73d7708fae6f7176fb243f357 | ≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < 48d5a8a304a643613dab376a278f29d3e22f7c34 | ≥ 5c21c4ccafe85906db809de3af391fd434df8a27, < 9ab332deb671d8f7e66d82a2ff2b3f715bc3a4ad | 5.10
  • linux_kernel≥ 5.10, < 5.15.176 | ≥ 5.16, < 6.1.122 | ≥ 6.2, < 6.6.68 | ≥ 6.7, < 6.12.7 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3
Debian1 product
  • linux< 6.1.123-1 | < 6.12.8-1

3 vendors · 126 products

References

38 links
Show all 38 references