5.5

CVE-2024-44965: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-44965DEBIAN-CVE-2024-44965
Published 04-09-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-44965 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% 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 27 · Related 22
DLA-3912-1DLA-4008-1MGASA-2024-0309MGASA-2024-0310RHSA-2024:9315SUSE-SU-2024:3551-1

Timeline

  1. 04-09-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix pti_clone_pgtable() alignment assumption Guenter reported dodgy crashes on an i386-nosmp build using GCC-11 that had the form of endless traps until entry stack exhaust and then #DF from the stack guard. It turned out that pti_clone_pgtable() had alignment assumptions on the start address, notably it hard assumes start is PMD aligned. This is true on x86_64, but very much not true on i386. These assumptions can cause the end condition to malfunction, leading to a 'short' clone. Guess what happens when the user mapping has a short copy of the entry text? Use the correct increment form for addr to avoid alignment assumptions.

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

Ubuntu128 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < 18da1b27ce16a14a9b636af9232acb4fb24f4c9e | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < 25a727233a40a9b33370eec9f0cad67d8fd312f8 | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < d00c9b4bbc442d99e1dafbdfdab848bc1ead73f6 | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < 4d143ae782009b43b4f366402e5c37f59d4e4346 | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < 5c580c1050bcbc15c3e78090859d798dcf8c9763 | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < ca07aab70dd3b5e7fddb62d7a6ecd7a7d6d0b2ed | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < df3eecb5496f87263d171b254ca6e2758ab3c35c | ≥ 16a3fe634f6a568c6234b8747e5d50487fed3526, < 41e71dbb0e0a0fe214545fe64af031303a08524c | 4.19
  • linux_kernel≥ 4.19, < 4.19.320 | ≥ 4.20, < 5.4.282 | ≥ 5.5, < 5.10.224 | ≥ 5.11, < 5.15.165 | ≥ 5.16, < 6.1.105 | ≥ 6.2, < 6.6.46 | ≥ 6.7, < 6.10.5 | 6.11:rc1
Debian1 product
  • linux< 6.1.106-1 | < 6.10.6-1

3 vendors · 131 products

References

33 links
Show all 33 references