Vulnerability-Lookup

FKIE_CVE-2026-31405

Vulnerability from fkie_nvd - Published: 2026-04-06 08:16 - Updated: 2026-05-20 12:01

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

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}

CVE-2026-31405 (GCVE-0-2026-31405)

Vulnerability from cvelistv5 – Published: 2026-04-06 07:33 – Updated: 2026-05-11 22:08

Title

media: dvb-net: fix OOB access in ULE extension header tables

Summary

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e51238718217c4abd…
https://git.kernel.org/stable/c/b2bd2ee73b697c177…
https://git.kernel.org/stable/c/29ef43ceb121d67b8…
https://git.kernel.org/stable/c/1a6da3dbb9985d007…
https://git.kernel.org/stable/c/145e50c2c700fa52b…
https://git.kernel.org/stable/c/8bde543d2a5f935ba…
https://git.kernel.org/stable/c/f2b65dcb78c8990e4…
https://git.kernel.org/stable/c/24d87712727a5017a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e51238718217c4abdb3ccc3b0c0cde265c7ec629 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b2bd2ee73b697c177157bba534e1b1064c2e66a0 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 29ef43ceb121d67b87f4cbb08439e4e9e732eff8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1a6da3dbb9985d00743073a1cc1f96e59f5abc30 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 145e50c2c700fa52b840df7bab206043997dd18e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f2b65dcb78c8990e4c68a906627433be1fe38a92 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 24d87712727a5017ad142d63940589a36cd25647 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "programFiles": [
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        {
          "url": "https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92"
        },
        {
          "url": "https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647"
        }
      ],
      "title": "media: dvb-net: fix OOB access in ULE extension header tables",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31405",
    "datePublished": "2026-04-06T07:33:00.544Z",
    "dateReserved": "2026-03-09T15:48:24.086Z",
    "dateUpdated": "2026-05-11T22:08:04.574Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

FKIE_CVE-2026-31405

CVE-2026-31405 (GCVE-0-2026-31405)

Tags

Sightings

Nomenclature