{"api_version":"1","generated_at":"2026-08-22T18:40:13+00:00","cve":"CVE-2026-74680","urls":{"html":"https://cve.report/CVE-2026-74680","api":"https://cve.report/api/cve/CVE-2026-74680.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74680","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74680"},"summary":{"title":"usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()\n\nIf cxacru_cm() encounters an error while submitting or waiting for snd_urb,\nit aborts and returns the error without killing the already submitted\nrcv_urb. This leaves the rcv_urb active.\n\nWhen this happens during initialization (e.g., in cxacru_atm_start()), the\ndriver may ignore the error and proceed to call cxacru_poll_status(), which\ninvokes cxacru_cm() again. Attempting to submit the still-active rcv_urb\ntriggers a warning in usb_submit_urb():\n\ncxacru 1-1:1.0: send of cm 0x84 failed (-104)\nATM dev 0: cxacru_atm_start: CHIP_ADSL_LINE_START returned -104\n------------[ cut here ]------------\nURB ffff88812658d200 submitted while active\nWARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0\ndrivers/usb/core/urb.c:379\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x21a/0xf10 drivers/usb/atm/cxacru.c:631\n cxacru_cm_get_array drivers/usb/atm/cxacru.c:722 [inline]\n cxacru_poll_status+0x178/0x1110 drivers/usb/atm/cxacru.c:828\n cxacru_atm_start+0x185/0x360 drivers/usb/atm/cxacru.c:814\n usbatm_atm_init+0x144/0x3a0 drivers/usb/atm/usbatm.c:927\n usbatm_usb_probe+0x15cb/0x1db0 drivers/usb/atm/usbatm.c:1178\n cxacru_usb_probe+0x17f/0x220 drivers/usb/atm/cxacru.c:1370\n...\n\nTo fix this, ensure that rcv_urb is properly killed if cxacru_cm() aborts\nearly. We can safely call usb_kill_urb() on rcv_urb in the error path, as\nit is safe to call even if the URB is not active (e.g., if it failed to\nsubmit in the first place, or if it already completed).","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:42","updated_at":"2026-08-22 16:16:42"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c2f811314be351d86b6ab41e9297ae80d8da6f86","name":"https://git.kernel.org/stable/c/c2f811314be351d86b6ab41e9297ae80d8da6f86","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/61093d7f1144f6a15bac505df35e5f535ade2ac1","name":"https://git.kernel.org/stable/c/61093d7f1144f6a15bac505df35e5f535ade2ac1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2f73a065791d2a8e3f0bdf29248e33600359e865","name":"https://git.kernel.org/stable/c/2f73a065791d2a8e3f0bdf29248e33600359e865","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6133b461058316e3ccba7331f974d110d4c08b23","name":"https://git.kernel.org/stable/c/6133b461058316e3ccba7331f974d110d4c08b23","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/645d98dbccdbfdbf0129f48822af7183492de091","name":"https://git.kernel.org/stable/c/645d98dbccdbfdbf0129f48822af7183492de091","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/939b6a41f681aea52af678053072ee443068e93e","name":"https://git.kernel.org/stable/c/939b6a41f681aea52af678053072ee443068e93e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0af047703dbed8224552587ed436f14a24371b46","name":"https://git.kernel.org/stable/c/0af047703dbed8224552587ed436f14a24371b46","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/993f7677949e3d72e360e86eed1f41c2511f75ed","name":"https://git.kernel.org/stable/c/993f7677949e3d72e360e86eed1f41c2511f75ed","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74680","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74680","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 6133b461058316e3ccba7331f974d110d4c08b23 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 61093d7f1144f6a15bac505df35e5f535ade2ac1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 645d98dbccdbfdbf0129f48822af7183492de091 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 993f7677949e3d72e360e86eed1f41c2511f75ed git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 939b6a41f681aea52af678053072ee443068e93e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 2f73a065791d2a8e3f0bdf29248e33600359e865 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf 0af047703dbed8224552587ed436f14a24371b46 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1b0e614652344a2d39eb336f3dc07651782883bf c2f811314be351d86b6ab41e9297ae80d8da6f86 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.265 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/atm/cxacru.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6133b461058316e3ccba7331f974d110d4c08b23","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"61093d7f1144f6a15bac505df35e5f535ade2ac1","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"645d98dbccdbfdbf0129f48822af7183492de091","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"993f7677949e3d72e360e86eed1f41c2511f75ed","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"939b6a41f681aea52af678053072ee443068e93e","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"2f73a065791d2a8e3f0bdf29248e33600359e865","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"0af047703dbed8224552587ed436f14a24371b46","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"},{"lessThan":"c2f811314be351d86b6ab41e9297ae80d8da6f86","status":"affected","version":"1b0e614652344a2d39eb336f3dc07651782883bf","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/atm/cxacru.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.13"},{"lessThan":"2.6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"2.6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"2.6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()\n\nIf cxacru_cm() encounters an error while submitting or waiting for snd_urb,\nit aborts and returns the error without killing the already submitted\nrcv_urb. This leaves the rcv_urb active.\n\nWhen this happens during initialization (e.g., in cxacru_atm_start()), the\ndriver may ignore the error and proceed to call cxacru_poll_status(), which\ninvokes cxacru_cm() again. Attempting to submit the still-active rcv_urb\ntriggers a warning in usb_submit_urb():\n\ncxacru 1-1:1.0: send of cm 0x84 failed (-104)\nATM dev 0: cxacru_atm_start: CHIP_ADSL_LINE_START returned -104\n------------[ cut here ]------------\nURB ffff88812658d200 submitted while active\nWARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0\ndrivers/usb/core/urb.c:379\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x21a/0xf10 drivers/usb/atm/cxacru.c:631\n cxacru_cm_get_array drivers/usb/atm/cxacru.c:722 [inline]\n cxacru_poll_status+0x178/0x1110 drivers/usb/atm/cxacru.c:828\n cxacru_atm_start+0x185/0x360 drivers/usb/atm/cxacru.c:814\n usbatm_atm_init+0x144/0x3a0 drivers/usb/atm/usbatm.c:927\n usbatm_usb_probe+0x15cb/0x1db0 drivers/usb/atm/usbatm.c:1178\n cxacru_usb_probe+0x17f/0x220 drivers/usb/atm/cxacru.c:1370\n...\n\nTo fix this, ensure that rcv_urb is properly killed if cxacru_cm() aborts\nearly. We can safely call usb_kill_urb() on rcv_urb in the error path, as\nit is safe to call even if the URB is not active (e.g., if it failed to\nsubmit in the first place, or if it already completed)."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:48.230Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/6133b461058316e3ccba7331f974d110d4c08b23"},{"url":"https://git.kernel.org/stable/c/61093d7f1144f6a15bac505df35e5f535ade2ac1"},{"url":"https://git.kernel.org/stable/c/645d98dbccdbfdbf0129f48822af7183492de091"},{"url":"https://git.kernel.org/stable/c/993f7677949e3d72e360e86eed1f41c2511f75ed"},{"url":"https://git.kernel.org/stable/c/939b6a41f681aea52af678053072ee443068e93e"},{"url":"https://git.kernel.org/stable/c/2f73a065791d2a8e3f0bdf29248e33600359e865"},{"url":"https://git.kernel.org/stable/c/0af047703dbed8224552587ed436f14a24371b46"},{"url":"https://git.kernel.org/stable/c/c2f811314be351d86b6ab41e9297ae80d8da6f86"}],"title":"usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74680","datePublished":"2026-08-22T15:32:48.230Z","dateReserved":"2026-08-15T05:44:03.925Z","dateUpdated":"2026-08-22T15:32:48.230Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:42","lastModifiedDate":"2026-08-22 16:16:42","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74680","Ordinal":"1","Title":"usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()","CVE":"CVE-2026-74680","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74680","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()\n\nIf cxacru_cm() encounters an error while submitting or waiting for snd_urb,\nit aborts and returns the error without killing the already submitted\nrcv_urb. This leaves the rcv_urb active.\n\nWhen this happens during initialization (e.g., in cxacru_atm_start()), the\ndriver may ignore the error and proceed to call cxacru_poll_status(), which\ninvokes cxacru_cm() again. Attempting to submit the still-active rcv_urb\ntriggers a warning in usb_submit_urb():\n\ncxacru 1-1:1.0: send of cm 0x84 failed (-104)\nATM dev 0: cxacru_atm_start: CHIP_ADSL_LINE_START returned -104\n------------[ cut here ]------------\nURB ffff88812658d200 submitted while active\nWARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x79/0x18b0\ndrivers/usb/core/urb.c:379\n...\nCall Trace:\n <TASK>\n cxacru_cm+0x21a/0xf10 drivers/usb/atm/cxacru.c:631\n cxacru_cm_get_array drivers/usb/atm/cxacru.c:722 [inline]\n cxacru_poll_status+0x178/0x1110 drivers/usb/atm/cxacru.c:828\n cxacru_atm_start+0x185/0x360 drivers/usb/atm/cxacru.c:814\n usbatm_atm_init+0x144/0x3a0 drivers/usb/atm/usbatm.c:927\n usbatm_usb_probe+0x15cb/0x1db0 drivers/usb/atm/usbatm.c:1178\n cxacru_usb_probe+0x17f/0x220 drivers/usb/atm/cxacru.c:1370\n...\n\nTo fix this, ensure that rcv_urb is properly killed if cxacru_cm() aborts\nearly. We can safely call usb_kill_urb() on rcv_urb in the error path, as\nit is safe to call even if the URB is not active (e.g., if it failed to\nsubmit in the first place, or if it already completed).","Type":"Description","Title":"usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()"}]}}}