{"api_version":"1","generated_at":"2026-04-19T01:10:08+00:00","cve":"CVE-2026-31405","urls":{"html":"https://cve.report/CVE-2026-31405","api":"https://cve.report/api/cve/CVE-2026-31405.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31405","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31405"},"summary":{"title":"media: dvb-net: fix OOB access in ULE extension header tables","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-net: fix OOB access in ULE extension header tables\n\nThe ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables\nin handle_one_ule_extension() are declared with 255 elements (valid\nindices 0-254), but the index htype is derived from network-controlled\ndata as (ule_sndu_type & 0x00FF), giving a range of 0-255. When\nhtype equals 255, an out-of-bounds read occurs on the function pointer\ntable, and the OOB value may be called as a function pointer.\n\nAdd a bounds check on htype against the array size before either table\nis accessed. Out-of-range values now cause the SNDU to be discarded.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-06 08:16:38","updated_at":"2026-04-18 09:16:30"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629","name":"https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8","name":"https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30","name":"https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647","name":"https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e","name":"https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92","name":"https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0","name":"https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe","name":"https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31405","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31405","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e51238718217c4abdb3ccc3b0c0cde265c7ec629 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 b2bd2ee73b697c177157bba534e1b1064c2e66a0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 29ef43ceb121d67b87f4cbb08439e4e9e732eff8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 1a6da3dbb9985d00743073a1cc1f96e59f5abc30 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-net: fix OOB access in ULE extension header tables\n\nThe ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables\nin handle_one_ule_extension() are declared with 255 elements (valid\nindices 0-254), but the index htype is derived from network-controlled\ndata as (ule_sndu_type & 0x00FF), giving a range of 0-255. When\nhtype equals 255, an out-of-bounds read occurs on the function pointer\ntable, and the OOB value may be called as a function pointer.\n\nAdd a bounds check on htype against the array size before either table\nis accessed. Out-of-range values now cause the SNDU to be discarded."}],"providerMetadata":{"dateUpdated":"2026-04-18T08:59:24.162Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629"},{"url":"https://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0"},{"url":"https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8"},{"url":"https://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30"},{"url":"https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18e"},{"url":"https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe"},{"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":"2026-04-18T08:59:24.162Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-06 08:16:38","lastModifiedDate":"2026-04-18 09:16:30","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31405","Ordinal":"1","Title":"media: dvb-net: fix OOB access in ULE extension header tables","CVE":"CVE-2026-31405","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31405","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-net: fix OOB access in ULE extension header tables\n\nThe ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables\nin handle_one_ule_extension() are declared with 255 elements (valid\nindices 0-254), but the index htype is derived from network-controlled\ndata as (ule_sndu_type & 0x00FF), giving a range of 0-255. When\nhtype equals 255, an out-of-bounds read occurs on the function pointer\ntable, and the OOB value may be called as a function pointer.\n\nAdd a bounds check on htype against the array size before either table\nis accessed. Out-of-range values now cause the SNDU to be discarded.","Type":"Description","Title":"media: dvb-net: fix OOB access in ULE extension header tables"}]}}}