{"api_version":"1","generated_at":"2026-08-13T15:30:35+00:00","cve":"CVE-2026-68344","urls":{"html":"https://cve.report/CVE-2026-68344","api":"https://cve.report/api/cve/CVE-2026-68344.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68344","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68344"},"summary":{"title":"usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect\n\nuea_probe() distinguishes a pre-firmware device from a post-firmware one\nusing the USB id (UEA_IS_PREFIRM()), and stores a different object as the\ninterface data in each case: a 'struct completion' for a pre-firmware\ndevice (to be waited on in .disconnect()), or a 'struct usbatm_data' for a\npost-firmware one.\n\nuea_disconnect() instead tells the two apart by the number of interfaces\nof the active configuration (a pre-firmware device exposes a single\ninterface, ADI930 has 2 and eagle has 3), and casts the interface data\naccordingly.\n\nBecause the two handlers use different criteria, a crafted device that\nadvertises a pre-firmware id together with a multi-interface descriptor\n(or a post-firmware id with a single interface) makes them disagree: the\nsmall 'struct completion' stored by uea_probe() is then passed to\nusbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes\ninstance->serialize, reading past the end of the allocation:\n\n  BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80\n  Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982\n  ...\n   __mutex_lock+0x152a/0x1b80\n   usbatm_usb_disconnect+0x70/0x820\n   uea_disconnect+0x133/0x2c0\n   usb_unbind_interface+0x1dd/0x9e0\n  ...\n  which belongs to the cache kmalloc-96 of size 96\n  The buggy address is located 0 bytes to the right of\n   allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)\n\nReject such inconsistent descriptors in uea_probe() so that both handlers\nalways make the same pre/post-firmware decision.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:24","updated_at":"2026-08-10 13:20:24"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428","name":"https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f","name":"https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80","name":"https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a","name":"https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce","name":"https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68344","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68344","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f2a6abc670104fc3e383ee3b1cf35c070485e3df c035b1198906dd5bd3df9a3045b59254bad1ea7a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c581e30ae5b332d8acef64475a211b3f82099941 9904a46401198872ab3de34fd11f383831ef3428 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 509b51327320bdeaef1969248177a446ded073ab d0a57f19fe2865b9747484f5f9c631f944ed9a0f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ddcdac47e1f2651c7be60e299f98faf981522797 0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf 71132cedd1ecbc4032d76e9928c18a10f7e39b80 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d85f19aaef42a03e3e4765d659c761c8750a7f23 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76861031b43a18065d13f9ffb8595d25c7576005 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bbfedc84714064ea4845e6b76f96316eb5bb65d8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.145 6.6.148 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.97 6.12.101 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.40 6.18.42 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1.5 7.1.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.10.261 5.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15.212 5.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.178 6.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.2-rc3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc5 * 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/ueagle-atm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c035b1198906dd5bd3df9a3045b59254bad1ea7a","status":"affected","version":"f2a6abc670104fc3e383ee3b1cf35c070485e3df","versionType":"git"},{"lessThan":"9904a46401198872ab3de34fd11f383831ef3428","status":"affected","version":"c581e30ae5b332d8acef64475a211b3f82099941","versionType":"git"},{"lessThan":"d0a57f19fe2865b9747484f5f9c631f944ed9a0f","status":"affected","version":"509b51327320bdeaef1969248177a446ded073ab","versionType":"git"},{"lessThan":"0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce","status":"affected","version":"ddcdac47e1f2651c7be60e299f98faf981522797","versionType":"git"},{"lessThan":"71132cedd1ecbc4032d76e9928c18a10f7e39b80","status":"affected","version":"e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf","versionType":"git"},{"status":"affected","version":"d85f19aaef42a03e3e4765d659c761c8750a7f23","versionType":"git"},{"status":"affected","version":"76861031b43a18065d13f9ffb8595d25c7576005","versionType":"git"},{"status":"affected","version":"bbfedc84714064ea4845e6b76f96316eb5bb65d8","versionType":"git"},{"lessThan":"6.6.148","status":"affected","version":"6.6.145","versionType":"semver"},{"lessThan":"6.12.101","status":"affected","version":"6.12.97","versionType":"semver"},{"lessThan":"6.18.42","status":"affected","version":"6.18.40","versionType":"semver"},{"lessThan":"7.1.6","status":"affected","version":"7.1.5","versionType":"semver"},{"lessThan":"5.11","status":"affected","version":"5.10.261","versionType":"semver"},{"lessThan":"5.16","status":"affected","version":"5.15.212","versionType":"semver"},{"lessThan":"6.2","status":"affected","version":"6.1.178","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/atm/ueagle-atm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.2-rc3"},{"lessThan":"7.2-rc3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"6.6.145","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"6.12.97","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"6.18.40","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"7.1.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc5","versionStartIncluding":"7.2-rc3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.261","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.212","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.178","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect\n\nuea_probe() distinguishes a pre-firmware device from a post-firmware one\nusing the USB id (UEA_IS_PREFIRM()), and stores a different object as the\ninterface data in each case: a 'struct completion' for a pre-firmware\ndevice (to be waited on in .disconnect()), or a 'struct usbatm_data' for a\npost-firmware one.\n\nuea_disconnect() instead tells the two apart by the number of interfaces\nof the active configuration (a pre-firmware device exposes a single\ninterface, ADI930 has 2 and eagle has 3), and casts the interface data\naccordingly.\n\nBecause the two handlers use different criteria, a crafted device that\nadvertises a pre-firmware id together with a multi-interface descriptor\n(or a post-firmware id with a single interface) makes them disagree: the\nsmall 'struct completion' stored by uea_probe() is then passed to\nusbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes\ninstance->serialize, reading past the end of the allocation:\n\n  BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80\n  Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982\n  ...\n   __mutex_lock+0x152a/0x1b80\n   usbatm_usb_disconnect+0x70/0x820\n   uea_disconnect+0x133/0x2c0\n   usb_unbind_interface+0x1dd/0x9e0\n  ...\n  which belongs to the cache kmalloc-96 of size 96\n  The buggy address is located 0 bytes to the right of\n   allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)\n\nReject such inconsistent descriptors in uea_probe() so that both handlers\nalways make the same pre/post-firmware decision."}],"providerMetadata":{"dateUpdated":"2026-08-10T12:03:20.917Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a"},{"url":"https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428"},{"url":"https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f"},{"url":"https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce"},{"url":"https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80"}],"title":"usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68344","datePublished":"2026-08-10T12:03:20.917Z","dateReserved":"2026-07-30T09:28:09.384Z","dateUpdated":"2026-08-10T12:03:20.917Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:24","lastModifiedDate":"2026-08-10 13:20:24","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68344","Ordinal":"1","Title":"usb: atm: ueagle-atm: reject descriptors that confuse probe and ","CVE":"CVE-2026-68344","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68344","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect\n\nuea_probe() distinguishes a pre-firmware device from a post-firmware one\nusing the USB id (UEA_IS_PREFIRM()), and stores a different object as the\ninterface data in each case: a 'struct completion' for a pre-firmware\ndevice (to be waited on in .disconnect()), or a 'struct usbatm_data' for a\npost-firmware one.\n\nuea_disconnect() instead tells the two apart by the number of interfaces\nof the active configuration (a pre-firmware device exposes a single\ninterface, ADI930 has 2 and eagle has 3), and casts the interface data\naccordingly.\n\nBecause the two handlers use different criteria, a crafted device that\nadvertises a pre-firmware id together with a multi-interface descriptor\n(or a post-firmware id with a single interface) makes them disagree: the\nsmall 'struct completion' stored by uea_probe() is then passed to\nusbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes\ninstance->serialize, reading past the end of the allocation:\n\n  BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80\n  Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982\n  ...\n   __mutex_lock+0x152a/0x1b80\n   usbatm_usb_disconnect+0x70/0x820\n   uea_disconnect+0x133/0x2c0\n   usb_unbind_interface+0x1dd/0x9e0\n  ...\n  which belongs to the cache kmalloc-96 of size 96\n  The buggy address is located 0 bytes to the right of\n   allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)\n\nReject such inconsistent descriptors in uea_probe() so that both handlers\nalways make the same pre/post-firmware decision.","Type":"Description","Title":"usb: atm: ueagle-atm: reject descriptors that confuse probe and "}]}}}