CVE-2025-22045

Advisory lineage Upstream: 0 Downstream: 62
Modified
Published: 16 Apr 2025, 14:12
Last modified:11 May 2026, 21:11

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.11% LOW
0% probability +0.07%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Apr 2025, 14:12
Published
Vulnerability first disclosed
11 May 2026, 21:11
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs On the following path, flush_tlb_range() can be used for zapping normal PMD entries (PMD entries that point to page tables) together with the PTE entries in the pointed-to page table: collapse_pte_mapped_thp pmdp_collapse_flush flush_tlb_range The arm64 version of flush_tlb_range() has a comment describing that it can be used for page table removal, and does not use any last-level invalidation optimizations. Fix the X86 version by making it behave the same way. Currently, X86 only uses this information for the following two purposes, which I think means the issue doesn't have much impact: - In native_flush_tlb_multi() for checking if lazy TLB CPUs need to be IPI'd to avoid issues with speculative page table walks. - In Hyper-V TLB paravirtualization, again for lazy TLB stuff. The patch "x86/mm: only invalidate final translations with INVLPGB" which is currently under review (see <https://lore.kernel.org/all/20241230175550.4046587-13-riel@surriel.com/>) would probably be making the impact of this a lot worse.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.11%• Percentile: 28%

Affected Systems

  • linux•linux

    ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 618d5612ecb7bfc1c85342daafeb2b47e29e77a3 | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 556d446068f90981e5d71ca686bdaccdd545d491 | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1 | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 0708fd6bd8161871bfbadced2ca4319b84ab44fe | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 7085895c59e4057ffae17f58990ccb630087d0d2 | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 93224deb50a8d20df3884f3672ce9f982129aa50 | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 320ac1af4c0bdb92c864dc9250d1329234820edf | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be | ≥ 016c4d92cd16f569c6485ae62b076c1a4b779536, < 3ef938c3503563bfc2ac15083557f880d29c2e64 | 4.20

  • linux•linux_kernel

    ≥ 4.20, < 5.4.292 | ≥ 5.5, < 5.10.236 | ≥ 5.11, < 5.15.180 | ≥ 5.16, < 6.1.134 | ≥ 6.2, < 6.6.87 | ≥ 6.7, < 6.12.23 | ≥ 6.13, < 6.13.11 | ≥ 6.14, < 6.14.2

References (11)