7.8

CVE-2024-35993: linux

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-35993DEBIAN-CVE-2024-35993
Published 20-05-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2024-35993 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
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 5 · Related 5
USN-6949-1USN-6949-2USN-6952-1USN-6952-2USN-6955-1

Timeline

  1. 20-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: mm: turn folio_test_hugetlb into a PageType The current folio_test_hugetlb() can be fooled by a concurrent folio split into returning true for a folio which has never belonged to hugetlbfs. This can't happen if the caller holds a refcount on it, but we have a few places (memory-failure, compaction, procfs) which do not and should not take a speculative reference. Since hugetlb pages do not use individual page mapcounts (they are always fully mapped and use the entire_mapcount field to record the number of mappings), the PageType field is available now that page_mapcount() ignores the value in this field. In compaction and with CONFIG_DEBUG_VM enabled, the current implementation can result in an oops, as reported by Luis. This happens since 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR") effectively added some VM_BUG_ON() checks in the PageHuge() testing path. [willy@infradead.org: update vmcoreinfo]

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 18-09-2026

18-09-202618-10-2026
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

Ubuntu82 products
  • linux< 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a, < 2431b5f2650dfc47ce782d1ca7b02d6b3916976f | ≥ 9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a, < 9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32 | ≥ 9c5ccf2db04b8d7c3df363fdd4856c2b79ab2c6a, < d99e3140a4d33e26066183ff727d8f02f56bec64 | 6.6
  • linux_kernel≥ 6.6, < 6.6.30 | ≥ 6.7, < 6.8.9 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5
Debian1 product
  • linux< 6.8.9-1

3 vendors · 85 products

References

12 links
Show all 12 references