{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-68344", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.384Z", "datePublished": "2026-08-10T12:03:20.917Z", "dateUpdated": "2026-08-19T16:33:45.376Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:45.376Z" }, "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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/atm/ueagle-atm.c" ], "versions": [ { "version": "d85f19aaef42a03e3e4765d659c761c8750a7f23", "lessThan": "9e7312844429379108ea9523a5ed934f142bb177", "status": "affected", "versionType": "git" }, { "version": "76861031b43a18065d13f9ffb8595d25c7576005", "lessThan": "f92832262718443feb4e5df2bf70424ba842629e", "status": "affected", "versionType": "git" }, { "version": "bbfedc84714064ea4845e6b76f96316eb5bb65d8", "lessThan": "e814ae925f6f575325124c29dde518b92c822b83", "status": "affected", "versionType": "git" }, { "version": "f2a6abc670104fc3e383ee3b1cf35c070485e3df", "lessThan": "c035b1198906dd5bd3df9a3045b59254bad1ea7a", "status": "affected", "versionType": "git" }, { "version": "c581e30ae5b332d8acef64475a211b3f82099941", "lessThan": "9904a46401198872ab3de34fd11f383831ef3428", "status": "affected", "versionType": "git" }, { "version": "509b51327320bdeaef1969248177a446ded073ab", "lessThan": "d0a57f19fe2865b9747484f5f9c631f944ed9a0f", "status": "affected", "versionType": "git" }, { "version": "ddcdac47e1f2651c7be60e299f98faf981522797", "lessThan": "0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce", "status": "affected", "versionType": "git" }, { "version": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf", "lessThan": "71132cedd1ecbc4032d76e9928c18a10f7e39b80", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/atm/ueagle-atm.c" ], "versions": [ { "version": "5.10.261", "lessThan": "5.10.265", "status": "affected", "versionType": "semver" }, { "version": "5.15.212", "lessThan": "5.15.216", "status": "affected", "versionType": "semver" }, { "version": "6.1.178", "lessThan": "6.1.183", "status": "affected", "versionType": "semver" }, { "version": "6.6.145", "lessThan": "6.6.148", "status": "affected", "versionType": "semver" }, { "version": "6.12.97", "lessThan": "6.12.101", "status": "affected", "versionType": "semver" }, { "version": "6.18.40", "lessThan": "6.18.42", "status": "affected", "versionType": "semver" }, { "version": "7.1.5", "lessThan": "7.1.6", "status": "affected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.261", "versionEndExcluding": "5.10.265" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.212", "versionEndExcluding": "5.15.216" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.178", "versionEndExcluding": "6.1.183" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.145", "versionEndExcluding": "6.6.148" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.97", "versionEndExcluding": "6.12.101" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.40", "versionEndExcluding": "6.18.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1.5", "versionEndExcluding": "7.1.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9e7312844429379108ea9523a5ed934f142bb177" }, { "url": "https://git.kernel.org/stable/c/f92832262718443feb4e5df2bf70424ba842629e" }, { "url": "https://git.kernel.org/stable/c/e814ae925f6f575325124c29dde518b92c822b83" }, { "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" } } } }