{"api_version":"1","generated_at":"2026-07-23T11:54:28+00:00","cve":"CVE-2026-31599","urls":{"html":"https://cve.report/CVE-2026-31599","api":"https://cve.report/api/cve/CVE-2026-31599.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31599","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31599"},"summary":{"title":"media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections\n\nsyzbot reported a general protection fault in vidtv_psi_desc_assign [1].\n\nvidtv_psi_pmt_stream_init() can return NULL on memory allocation\nfailure, but vidtv_channel_pmt_match_sections() does not check for\nthis. When tail is NULL, the subsequent call to\nvidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL\npointer offset, causing a general protection fault.\n\nAdd a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean\nup the already-allocated stream chain and return.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629\nCall Trace:\n <TASK>\n vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline]\n vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479\n vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519\n vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]\n vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-24 15:16:38","updated_at":"2026-06-01 17:16:50"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706","name":"https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/54e18a23e62e81b8335cec3e8e9c5cb33fd88665","name":"https://git.kernel.org/stable/c/54e18a23e62e81b8335cec3e8e9c5cb33fd88665","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f","name":"https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945","name":"https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/93d9e747a9e8a5ca9e3c5e37dcff76b40399139f","name":"https://git.kernel.org/stable/c/93d9e747a9e8a5ca9e3c5e37dcff76b40399139f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7","name":"https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5c986b77200b5ea754ba6636deacc7e0942fec9b","name":"https://git.kernel.org/stable/c/5c986b77200b5ea754ba6636deacc7e0942fec9b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022","name":"https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f","name":"https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31599","name":"CVE 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the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections\n\nsyzbot reported a general protection fault in vidtv_psi_desc_assign [1].\n\nvidtv_psi_pmt_stream_init() can return NULL on memory allocation\nfailure, but vidtv_channel_pmt_match_sections() does not check for\nthis. When tail is NULL, the subsequent call to\nvidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL\npointer offset, causing a general protection fault.\n\nAdd a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean\nup the already-allocated stream chain and return.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629\nCall Trace:\n <TASK>\n vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline]\n vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479\n vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519\n vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]\n vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239"}],"providerMetadata":{"dateUpdated":"2026-06-01T16:12:20.668Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/54e18a23e62e81b8335cec3e8e9c5cb33fd88665"},{"url":"https://git.kernel.org/stable/c/5c986b77200b5ea754ba6636deacc7e0942fec9b"},{"url":"https://git.kernel.org/stable/c/93d9e747a9e8a5ca9e3c5e37dcff76b40399139f"},{"url":"https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f"},{"url":"https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706"},{"url":"https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022"},{"url":"https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945"},{"url":"https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f"},{"url":"https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7"}],"title":"media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31599","datePublished":"2026-04-24T14:42:23.961Z","dateReserved":"2026-03-09T15:48:24.121Z","dateUpdated":"2026-06-01T16:12:20.668Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-24 15:16:38","lastModifiedDate":"2026-06-01 17:16:50","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.6.136","matchCriteriaId":"0F98EDB3-BDF6-4821-9197-1BA4A2E056E2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.83","matchCriteriaId":"7F0AE5B5-23AC-4DCC-B37A-51CA1DAE7BA8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.24","matchCriteriaId":"8126B8B8-6D0B-4443-86C1-672AEE893555"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.14","matchCriteriaId":"D6A8A074-BBF4-4803-ABED-519A839435BB"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.0.1","matchCriteriaId":"9B5888AB-7403-4335-89E4-21CC0B48366A"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31599","Ordinal":"1","Title":"media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_","CVE":"CVE-2026-31599","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31599","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections\n\nsyzbot reported a general protection fault in vidtv_psi_desc_assign [1].\n\nvidtv_psi_pmt_stream_init() can return NULL on memory allocation\nfailure, but vidtv_channel_pmt_match_sections() does not check for\nthis. When tail is NULL, the subsequent call to\nvidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL\npointer offset, causing a general protection fault.\n\nAdd a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean\nup the already-allocated stream chain and return.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629\nCall Trace:\n <TASK>\n vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline]\n vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479\n vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519\n vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]\n vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239","Type":"Description","Title":"media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_"}]}}}