CVE-2022-49686

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49686", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.441Z", "datePublished": "2025-02-26T02:24:12.624Z", "dateUpdated": "2026-05-11T19:04:44.109Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:04:44.109Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: fix list double add in uvcg_video_pump\n\nA panic can occur if the endpoint becomes disabled and the\nuvcg_video_pump adds the request back to the req_free list after it has\nalready been queued to the endpoint. The endpoint complete will add the\nrequest back to the req_free list. Invalidate the local request handle\nonce it's been queued.\n\n<6>[ 246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0)\n<3>[ 246.797078][ T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90.\n<6>[ 246.797213][ T26] ------------[ cut here ]------------\n<2>[ 246.797224][ T26] kernel BUG at lib/list_debug.c:31!\n<6>[ 246.807073][ T26] Call trace:\n<6>[ 246.807180][ T26] uvcg_video_pump+0x364/0x38c\n<6>[ 246.807366][ T26] process_one_work+0x2a4/0x544\n<6>[ 246.807394][ T26] worker_thread+0x350/0x784\n<6>[ 246.807442][ T26] kthread+0x2ac/0x320"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "versions": [{"version": "f9897ec0f6d34e8b2bc2f4c8ab8789351090f3d2", "lessThan": "d95ac8b920de1d39525fadc408ce675697626ca6", "status": "affected", "versionType": "git"}, {"version": "f9897ec0f6d34e8b2bc2f4c8ab8789351090f3d2", "lessThan": "96163f835e65f8c9897487fac965819f0651d671", "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/usb/gadget/function/uvc_video.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.8", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "5.16", "versionEndExcluding": "5.18.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d95ac8b920de1d39525fadc408ce675697626ca6"}, {"url": "https://git.kernel.org/stable/c/96163f835e65f8c9897487fac965819f0651d671"}], "title": "usb: gadget: uvc: fix list double add in uvcg_video_pump", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d95ac8b920de1d39525fadc408ce675697626ca6", "status": "affected", "version": "f9897ec0f6d34e8b2bc2f4c8ab8789351090f3d2", "versionType": "git"}, {"lessThan": "96163f835e65f8c9897487fac965819f0651d671", "status": "affected", "version": "f9897ec0f6d34e8b2bc2f4c8ab8789351090f3d2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.16"}, {"lessThan": "5.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.18.*", "status": "unaffected", "version": "5.18.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0172D3FA-DDEB-482A-A270-4A1495A8798C", "versionEndExcluding": "5.18.8", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: fix list double add in uvcg_video_pump\n\nA panic can occur if the endpoint becomes disabled and the\nuvcg_video_pump adds the request back to the req_free list after it has\nalready been queued to the endpoint. The endpoint complete will add the\nrequest back to the req_free list. Invalidate the local request handle\nonce it's been queued.\n\n<6>[ 246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0)\n<3>[ 246.797078][ T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90.\n<6>[ 246.797213][ T26] ------------[ cut here ]------------\n<2>[ 246.797224][ T26] kernel BUG at lib/list_debug.c:31!\n<6>[ 246.807073][ T26] Call trace:\n<6>[ 246.807180][ T26] uvcg_video_pump+0x364/0x38c\n<6>[ 246.807366][ T26] process_one_work+0x2a4/0x544\n<6>[ 246.807394][ T26] worker_thread+0x350/0x784\n<6>[ 246.807442][ T26] kthread+0x2ac/0x320"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: uvc: fix list double add in uvcg_video_pump Puede producirse un p\u00e1nico si el endpoint se deshabilita y uvcg_video_pump agrega la solicitud nuevamente a la lista req_free despu\u00e9s de que ya se haya puesto en cola en el endpoint. La finalizaci\u00f3n del endpoint agregar\u00e1 la solicitud nuevamente a la lista req_free. Invalida el identificador de solicitud local una vez que se haya puesto en cola. &lt;6&gt;[ 246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0) &lt;3&gt;[ 246.797078][ T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90. &lt;6&gt;[ 246.797213][ T26] ------------[ cut here ]------------ &lt;2&gt;[ 246.797224][ T26] kernel BUG at lib/list_debug.c:31! &lt;6&gt;[ 246.807073][ T26] Call trace: &lt;6&gt;[ 246.807180][ T26] uvcg_video_pump+0x364/0x38c &lt;6&gt;[ 246.807366][ T26] process_one_work+0x2a4/0x544 &lt;6&gt;[ 246.807394][ T26] worker_thread+0x350/0x784 &lt;6&gt;[ 246.807442][ T26] kthread+0x2ac/0x320 "}], "id": "CVE-2022-49686", "lastModified": "2026-06-17T05:18:51.900", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:43.437", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/96163f835e65f8c9897487fac965819f0651d671"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d95ac8b920de1d39525fadc408ce675697626ca6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: gadget: uvc: fix list double add in uvcg_video_pump", "id": "2347750", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347750"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: gadget: uvc: fix list double add in uvcg_video_pump\nA panic can occur if the endpoint becomes disabled and the\nuvcg_video_pump adds the request back to the req_free list after it has\nalready been queued to the endpoint. The endpoint complete will add the\nrequest back to the req_free list. Invalidate the local request handle\nonce it's been queued.\n<6>[ 246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0)\n<3>[ 246.797078][ T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90.\n<6>[ 246.797213][ T26] ------------[ cut here ]------------\n<2>[ 246.797224][ T26] kernel BUG at lib/list_debug.c:31!\n<6>[ 246.807073][ T26] Call trace:\n<6>[ 246.807180][ T26] uvcg_video_pump+0x364/0x38c\n<6>[ 246.807366][ T26] process_one_work+0x2a4/0x544\n<6>[ 246.807394][ T26] worker_thread+0x350/0x784\n<6>[ 246.807442][ T26] kthread+0x2ac/0x320"], "name": "CVE-2022-49686", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49686\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49686\nhttps://lore.kernel.org/linux-cve-announce/2025022626-CVE-2022-49686-29d5@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T15:42:21.778543+00:00", "updated": "2025-07-12T15:42:21.778592+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}