CVE-2024-47745: Linux kernel · mm: call the security_mmap_file() LSM hook in remap_file_pages()
Source GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.8 High.
Data as of 30 Oct 2026, 00:40 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Until a fix is applied, administrators should consider restricting the use of the remap_file_pages syscall and the READ_IMPLIES_EXEC personality flag where possible. Monitoring for kernel updates addressing this issue is recommended.
Description
CVE-2024-47745 is a Linux kernel vulnerability where the remap_file_pages syscall handler fails to invoke the security_mmap_file() LSM hook, allowing a process with the READ_IMPLIES_EXEC personality flag to remap pages with read-write-execute (RWX) permissions. This bypasses W^X policies enforced by SELinux, potentially enabling unauthorized executable memory mappings.
References
- nvd.nist.gov/vuln/detail/CVE-2024-47745 (opens in a new tab)
- git.kernel.org/stable/c/0f910dbf2f2a4a7820ba4bac7b280f7108aa05b1 (opens in a new tab)
- git.kernel.org/stable/c/3393fddbfa947c8e1fdcc4509226905ffffd8b89 (opens in a new tab)
- git.kernel.org/stable/c/49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178 (opens in a new tab)
- git.kernel.org/stable/c/ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3 (opens in a new tab)
- git.kernel.org/stable/c/ea7e2d5e49c05e5db1922387b09ca74aa40f46e2 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)