5.5

CVE-2024-50017: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-50017DEBIAN-CVE-2024-50017
Published 21-10-2024Last modified 14-09-2026
Open JSON

Vulnerability summary

CVE-2024-50017 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 30
OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1SUSE-SU-2024:3984-1SUSE-SU-2024:3986-1SUSE-SU-2024:4315-1SUSE-SU-2024:4318-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 14-09-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: x86/mm/ident_map: Use gbpages only where full GB page should be mapped. When ident_pud_init() uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K request will map a full GB. This can include a lot of extra address space past that requested, including areas marked reserved by the BIOS. That allows processor speculation into reserved regions, that on UV systems can cause system halts. Only use GB pages when map creation requests include the full GB page of space. Fall back to using smaller 2M pages when only portions of a GB page are included in the request. No attempt is made to coalesce mapping requests. If a request requires a map entry at the 2M (pmd) level, subsequent mapping requests within the same 1G region will also be at the pmd level, even if adjacent or overlapping such requests could have been combined to map a full GB page. Existing usage starts with larger regions and then adds smaller regions, so this should not have any great consequence.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < cb2555fb0223edac9e7820f16de17ae04a39ad39 | ≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < fe9bab1d6441ed49dc3dd0acce4c2215e8d85447 | ≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < d113f9723f2bfd9c6feeb899b8ddbee6b8a6e01f | ≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < d80a99892f7a992d103138fa4636b2c33abd6740 | ≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < a23823098ab2c277c14fc110b97d8d5c83597195 | ≥ 66aad4fdf2bf0af29c7decb4433dc5ec6c7c5451, < cc31744a294584a36bf764a0ffa3255a8e69f036 | 4.12
  • linux_kernel< 6.10.14 | ≥ 6.11, < 6.11.3
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.11.4-1

3 vendors · 137 products

References

26 links
Show all 26 references