CVE-2024-26795 (GCVE-0-2024-26795)

Vulnerability from cvelistv5 – Published: 2024-04-04 08:20 – Updated: 2026-08-05 11:27
VLAI
Title
riscv: Sparse-Memory/vmemmap out-of-bounds fix
Summary
In the Linux kernel, the following vulnerability has been resolved: riscv: Sparse-Memory/vmemmap out-of-bounds fix Offset vmemmap so that the first page of vmemmap will be mapped to the first page of physical memory in order to ensure that vmemmap’s bounds will be respected during pfn_to_page()/page_to_pfn() operations. The conversion macros will produce correct SV39/48/57 addresses for every possible/valid DRAM_BASE inside the physical memory limits. v2:Address Alex's comments
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d95f1a542c3df396137afa217ef9bd39cb8931ca , < 5941a90c55d3bfba732b32208d58d997600b44ef (git)
Affected: d95f1a542c3df396137afa217ef9bd39cb8931ca , < 8310080799b40fd9f2a8b808c657269678c149af (git)
Affected: d95f1a542c3df396137afa217ef9bd39cb8931ca , < a278d5c60f21aa15d540abb2f2da6e6d795c3e6e (git)
Affected: d95f1a542c3df396137afa217ef9bd39cb8931ca , < 2a1728c15ec4f45ed9248ae22f626541c179bfbe (git)
Affected: d95f1a542c3df396137afa217ef9bd39cb8931ca , < a11dd49dcb9376776193e15641f84fcc1e5980c9 (git)
Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.15.151 , ≤ 5.15.* (semver)
Unaffected: 6.1.81 , ≤ 6.1.* (semver)
Unaffected: 6.6.21 , ≤ 6.6.* (semver)
Unaffected: 6.7.9 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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    "redhat_vex": {
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      "current_release_date": "2026-08-04T19:11:41+00:00",
      "cve": "CVE-2024-26795",
      "id": "CVE-2024-26795",
      "initial_release_date": "2024-04-04T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: riscv: Sparse-Memory/vmemmap out-of-bounds fix",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26795.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-05T01:01:05Z",
      "cve": "CVE-2024-26795",
      "id": "CVE-2024-26795",
      "initial_release_date": "2024-06-04T12:21:30Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-26795",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26795.json",
      "version": "19"
    },
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mapped\\nto the first page of physical memory in order to ensure that\\nvmemmap\\u2019s bounds will be respected during\\npfn_to_page()/page_to_pfn() operations.\\nThe conversion macros will produce correct SV39/48/57 addresses\\nfor every possible/valid DRAM_BASE inside the physical memory limits.\\n\\nv2:Address Alex\u0027s comments\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.151\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.81\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.21\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, 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      "cveMetadata": "{\"cveId\": \"CVE-2024-26795\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:27:18.433Z\", \"dateReserved\": \"2024-02-19T14:20:24.178Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-04T08:20:25.063Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
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  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.