{"api_version":"1","generated_at":"2026-11-13T00:23:42+00:00","cve":"CVE-2022-50297","urls":{"html":"https://cve.report/CVE-2022-50297","api":"https://cve.report/api/cve/CVE-2022-50297.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-50297","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-50297"},"summary":{"title":"wifi: ath9k: verify the expected usb_endpoints are present","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: verify the expected usb_endpoints are present\n\nThe bug arises when a USB device claims to be an ATH9K but doesn't\nhave the expected endpoints. (In this case there was an interrupt\nendpoint where the driver expected a bulk endpoint.) The kernel\nneeds to be able to handle such devices without getting an internal error.\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 3 PID: 500 at drivers/usb/core/urb.c:493 usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nModules linked in:\nCPU: 3 PID: 500 Comm: kworker/3:2 Not tainted 5.10.135-syzkaller #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nWorkqueue: events request_firmware_work_func\nRIP: 0010:usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nCall Trace:\n ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:908 [inline]\n ath9k_hif_usb_alloc_urbs+0x75e/0x1010 drivers/net/wireless/ath/ath9k/hif_usb.c:1019\n ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1109 [inline]\n ath9k_hif_usb_firmware_cb+0x142/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1242\n request_firmware_work_func+0x12e/0x240 drivers/base/firmware_loader/main.c:1097\n process_one_work+0x9af/0x1600 kernel/workqueue.c:2279\n worker_thread+0x61d/0x12f0 kernel/workqueue.c:2425\n kthread+0x3b4/0x4a0 kernel/kthread.c:313\n ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-09-15 15:15:41","updated_at":"2026-11-05 20:17:33"},"problem_types":["NVD-CWE-noinfo"],"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/ca57748593ddd8e46d033fbaeb9d01ec533a6bfe","name":"https://git.kernel.org/stable/c/ca57748593ddd8e46d033fbaeb9d01ec533a6bfe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b7e6d681e00a96cde2b32a15ffa70e1be2e3209","name":"https://git.kernel.org/stable/c/0b7e6d681e00a96cde2b32a15ffa70e1be2e3209","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c319196a0e34ed2e66d6f876f58d8d446335c2a7","name":"https://git.kernel.org/stable/c/c319196a0e34ed2e66d6f876f58d8d446335c2a7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/932f0a5e829fb0b823f96d7fa9a0f4fc96660b77","name":"https://git.kernel.org/stable/c/932f0a5e829fb0b823f96d7fa9a0f4fc96660b77","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1824ccabee5445347b83642e4087cc2eca070343","name":"https://git.kernel.org/stable/c/1824ccabee5445347b83642e4087cc2eca070343","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5","name":"https://git.kernel.org/stable/c/2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d64436af0bc3c9e579be761d7684f228fb95f3bb","name":"https://git.kernel.org/stable/c/d64436af0bc3c9e579be761d7684f228fb95f3bb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/16ef02bad239f11f322df8425d302be62f0443ce","name":"https://git.kernel.org/stable/c/16ef02bad239f11f322df8425d302be62f0443ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d008a202a0528a058bac658e657c010ce8534f4a","name":"https://git.kernel.org/stable/c/d008a202a0528a058bac658e657c010ce8534f4a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-50297","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50297","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb9987d0f748c983bb795a86f47522313f701a08 932f0a5e829fb0b823f96d7fa9a0f4fc96660b77 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb9987d0f748c983bb795a86f47522313f701a08 d008a202a0528a058bac658e657c010ce8534f4a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb9987d0f748c983bb795a86f47522313f701a08 d64436af0bc3c9e579be761d7684f228fb95f3bb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fb9987d0f748c983bb795a86f47522313f701a08 ca57748593ddd8e46d033fbaeb9d01ec533a6bfe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"50297","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2022-50297","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T20:09:12.464502Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T20:10:33.617Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath9k/hif_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"932f0a5e829fb0b823f96d7fa9a0f4fc96660b77","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"d008a202a0528a058bac658e657c010ce8534f4a","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"d64436af0bc3c9e579be761d7684f228fb95f3bb","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"ca57748593ddd8e46d033fbaeb9d01ec533a6bfe","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"1824ccabee5445347b83642e4087cc2eca070343","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"c319196a0e34ed2e66d6f876f58d8d446335c2a7","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"0b7e6d681e00a96cde2b32a15ffa70e1be2e3209","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"},{"lessThan":"16ef02bad239f11f322df8425d302be62f0443ce","status":"affected","version":"fb9987d0f748c983bb795a86f47522313f701a08","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath9k/hif_usb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.35"},{"lessThan":"2.6.35","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"4.9.*","status":"unaffected","version":"4.9.337","versionType":"semver"},{"lessThanOrEqual":"4.14.*","status":"unaffected","version":"4.14.303","versionType":"semver"},{"lessThanOrEqual":"4.19.*","status":"unaffected","version":"4.19.270","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.229","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.163","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.86","versionType":"semver"},{"lessThanOrEqual":"6.0.*","status":"unaffected","version":"6.0.16","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.9.337","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.14.303","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.270","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.229","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.163","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.86","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.0.16","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.2","versionStartIncluding":"2.6.35","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.2","versionStartIncluding":"2.6.35","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: verify the expected usb_endpoints are present\n\nThe bug arises when a USB device claims to be an ATH9K but doesn't\nhave the expected endpoints. (In this case there was an interrupt\nendpoint where the driver expected a bulk endpoint.) The kernel\nneeds to be able to handle such devices without getting an internal error.\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 3 PID: 500 at drivers/usb/core/urb.c:493 usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nModules linked in:\nCPU: 3 PID: 500 Comm: kworker/3:2 Not tainted 5.10.135-syzkaller #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nWorkqueue: events request_firmware_work_func\nRIP: 0010:usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nCall Trace:\n ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:908 [inline]\n ath9k_hif_usb_alloc_urbs+0x75e/0x1010 drivers/net/wireless/ath/ath9k/hif_usb.c:1019\n ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1109 [inline]\n ath9k_hif_usb_firmware_cb+0x142/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1242\n request_firmware_work_func+0x12e/0x240 drivers/base/firmware_loader/main.c:1097\n process_one_work+0x9af/0x1600 kernel/workqueue.c:2279\n worker_thread+0x61d/0x12f0 kernel/workqueue.c:2425\n kthread+0x3b4/0x4a0 kernel/kthread.c:313\n ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."}],"providerMetadata":{"dateUpdated":"2026-05-11T19:16:35.429Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/932f0a5e829fb0b823f96d7fa9a0f4fc96660b77"},{"url":"https://git.kernel.org/stable/c/d008a202a0528a058bac658e657c010ce8534f4a"},{"url":"https://git.kernel.org/stable/c/d64436af0bc3c9e579be761d7684f228fb95f3bb"},{"url":"https://git.kernel.org/stable/c/ca57748593ddd8e46d033fbaeb9d01ec533a6bfe"},{"url":"https://git.kernel.org/stable/c/1824ccabee5445347b83642e4087cc2eca070343"},{"url":"https://git.kernel.org/stable/c/c319196a0e34ed2e66d6f876f58d8d446335c2a7"},{"url":"https://git.kernel.org/stable/c/2d2eccf52ea0215c8d386b62af0b5fd4fc122bd5"},{"url":"https://git.kernel.org/stable/c/0b7e6d681e00a96cde2b32a15ffa70e1be2e3209"},{"url":"https://git.kernel.org/stable/c/16ef02bad239f11f322df8425d302be62f0443ce"}],"title":"wifi: ath9k: verify the expected usb_endpoints are present","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2022-50297","datePublished":"2025-09-15T14:45:53.146Z","dateReserved":"2025-09-15T14:18:36.812Z","dateUpdated":"2026-11-05T20:10:33.617Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-09-15 15:15:41","lastModifiedDate":"2026-11-05 20:17:33","problem_types":["NVD-CWE-noinfo"],"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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:09:12.464502Z","id":"CVE-2022-50297","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.35","versionEndExcluding":"4.9.337","matchCriteriaId":"8118BB3A-5FED-4BA6-8788-DE9274F8319B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"4.14.303","matchCriteriaId":"1E7450AD-4739-46F0-B81B-C02E7B35A97B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.270","matchCriteriaId":"AE8904A3-99BE-4E49-9682-1F90A6373F4F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.229","matchCriteriaId":"A0C0D95E-414A-445E-941B-3EF6A4D3A093"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.163","matchCriteriaId":"D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.86","matchCriteriaId":"47237296-55D1-4ED4-8075-D00FC85A61EE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.0.16","matchCriteriaId":"C720A569-3D93-4D77-95F6-E2B3A3267D9F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.2","matchCriteriaId":"77239F4B-6BB2-4B9E-A654-36A52396116C"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"50297","Ordinal":"1","Title":"wifi: ath9k: verify the expected usb_endpoints are present","CVE":"CVE-2022-50297","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"50297","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: verify the expected usb_endpoints are present\n\nThe bug arises when a USB device claims to be an ATH9K but doesn't\nhave the expected endpoints. (In this case there was an interrupt\nendpoint where the driver expected a bulk endpoint.) The kernel\nneeds to be able to handle such devices without getting an internal error.\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 3 PID: 500 at drivers/usb/core/urb.c:493 usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nModules linked in:\nCPU: 3 PID: 500 Comm: kworker/3:2 Not tainted 5.10.135-syzkaller #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014\nWorkqueue: events request_firmware_work_func\nRIP: 0010:usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493\nCall Trace:\n ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:908 [inline]\n ath9k_hif_usb_alloc_urbs+0x75e/0x1010 drivers/net/wireless/ath/ath9k/hif_usb.c:1019\n ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1109 [inline]\n ath9k_hif_usb_firmware_cb+0x142/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1242\n request_firmware_work_func+0x12e/0x240 drivers/base/firmware_loader/main.c:1097\n process_one_work+0x9af/0x1600 kernel/workqueue.c:2279\n worker_thread+0x61d/0x12f0 kernel/workqueue.c:2425\n kthread+0x3b4/0x4a0 kernel/kthread.c:313\n ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.","Type":"Description","Title":"wifi: ath9k: verify the expected usb_endpoints are present"}]}}}