{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-31585", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.120Z", "datePublished": "2026-04-24T14:42:14.266Z", "dateUpdated": "2026-06-14T17:42:17.844Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:42:17.844Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix nfeeds state corruption on start_streaming failure\n\nsyzbot reported a memory leak in vidtv_psi_service_desc_init [1].\n\nWhen vidtv_start_streaming() fails inside vidtv_start_feed(), the\nnfeeds counter is left incremented even though no feed was actually\nstarted. This corrupts the driver state: subsequent start_feed calls\nsee nfeeds > 1 and skip starting the mux, while stop_feed calls\neventually try to stop a non-existent stream.\n\nThis state corruption can also lead to memory leaks, since the mux\nand channel resources may be partially allocated during a failed\nstart_streaming but never cleaned up, as the stop path finds\ndvb->streaming == false and returns early.\n\nFix by decrementing nfeeds back when start_streaming fails, keeping\nthe counter in sync with the actual number of active feeds.\n\n[1]\nBUG: memory leak\nunreferenced object 0xffff888145b50820 (size 32):\n comm \"syz.0.17\", pid 6068, jiffies 4294944486\n backtrace (crc 90a0c7d4):\n vidtv_psi_service_desc_init+0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:288\n vidtv_channel_s302m_init+0xb1/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:83\n vidtv_channels_init+0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:524\n vidtv_mux_init+0x516/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:518\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" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/test-drivers/vidtv/vidtv_bridge.c" ], "versions": [ { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "f8cccb427e65d725fc0ba05e8900b4676eda268e", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "60f768d46df561e06d92ffcacc00909f37a0f23d", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "80900b5424f3454256153ce386388df43b324f63", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "17cb7957c979529cc98ff57f7ac331532f1f7c83", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "98c22210aeadce67d9d20059f0dbbd01ba7fdbba", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "25f19e476ab15defe698504212899fdb9f7cd61b", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "83110c2c8c46c035c2e0fc8ff3e4991183bf9ccd", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "4bf95f797edd63c93330eafb6d6e670982344b9b", "status": "affected", "versionType": "git" }, { "version": "f90cf6079bf67988f8b1ad1ade70fc89d0080905", "lessThan": "a0e5a598fe9a4612b852406b51153b881592aede", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/media/test-drivers/vidtv/vidtv_bridge.c" ], "versions": [ { "version": "5.10", "status": "affected" }, { "version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.136", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.83", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.24", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.1", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.136" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.83" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.24" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.19.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.0.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f8cccb427e65d725fc0ba05e8900b4676eda268e" }, { "url": "https://git.kernel.org/stable/c/60f768d46df561e06d92ffcacc00909f37a0f23d" }, { "url": "https://git.kernel.org/stable/c/80900b5424f3454256153ce386388df43b324f63" }, { "url": "https://git.kernel.org/stable/c/17cb7957c979529cc98ff57f7ac331532f1f7c83" }, { "url": "https://git.kernel.org/stable/c/98c22210aeadce67d9d20059f0dbbd01ba7fdbba" }, { "url": "https://git.kernel.org/stable/c/25f19e476ab15defe698504212899fdb9f7cd61b" }, { "url": "https://git.kernel.org/stable/c/83110c2c8c46c035c2e0fc8ff3e4991183bf9ccd" }, { "url": "https://git.kernel.org/stable/c/4bf95f797edd63c93330eafb6d6e670982344b9b" }, { "url": "https://git.kernel.org/stable/c/a0e5a598fe9a4612b852406b51153b881592aede" } ], "title": "media: vidtv: fix nfeeds state corruption on start_streaming failure", "x_generator": { "engine": "bippy-1.2.0" } } } }