CVE-2026-68456

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68456", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.395Z", "datePublished": "2026-08-15T05:51:17.487Z", "dateUpdated": "2026-11-06T16:55:17.329Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:05:56.711Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()\n\nueagle-atm uses the asynchronous request_firmware_nowait() in .probe(),\nbut does not wait for its completion, not even in .disconnect(); so, if the\ndevice is unplugged meanwhile, its teardown runs concurrently with that.\n\nEven though this inconsistency is worth addressing on its own, it has also\ntriggered several bug reports in syzbot over the years (some auto-closed)\nwhere the firmware sysfs fallback mechanism (CONFIG_FW_LOADER_USER_HELPER)\ncreates a firmware subdirectory in the device directory during its removal,\nwhich might hit unexpected conditions in kernfs, apparently, depending at\nwhich point the add and remove operations raced. (See links.)\n\nThe pattern is:\n\nusb ?-?: Direct firmware load for ueagle-atm/eagle?.fw failed with error -2\nusb ?-?: Falling back to sysfs fallback for: ueagle-atm/eagle?.fw\n<ERROR>\nCall trace:\n ...\n kernfs_create_dir_ns\n sysfs_create_dir_ns\n create_dir\n kobject_add_internal\n kobject_add_varg\n kobject_add\n class_dir_create_and_add\n get_device_parent\n device_add\n fw_load_sysfs_fallback\n fw_load_from_user_helper\n firmware_fallback_sysfs\n _request_firmware\n request_firmware_work_func\n ...\n\n(Some variations are observed, after fw_load_sysfs_fallback(), e.g., [1].)\n\nWhile the kernfs side is being looked at, the ueagle-atm side can be fixed\nby waiting for the pre-firmware load in the .disconnect() handler.\n\nThis change has a similar approach to previous work by Andrey Tsygunka [2]\n(wait_for_completion() in .disconnect()), but it is relatively different in\ndesign/implementation; using the Originally-by tag for credit assignment.\n\nThis has been tested with:\n- synthetic reproducer to check the error path;\n- USB gadget (virtual device) to check the firmware upload path;\n- QEMU device emulator to check the device ID re-enumeration path;\n(The latter two were written by Claude; no other code/text in this commit.)\n\nLinks (year first reported):\n 2025 https://syzbot.org/bug?extid=ce1e5a1b4e086b43e56d\n 2025 https://syzbot.org/bug?extid=9af8471255ac36e34fd4\n 2024 https://syzbot.org/bug?extid=306212936b13e520679d\n 2023 https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n 2022 https://syzbot.org/bug?extid=782984d6f1701b526edb\n 2021 https://syzbot.org/bug?id=f3f221579f4ef7e9691281f3c6f56c05f83e8490\n 2021 https://syzbot.org/bug?id=84d86f0d71394829df6fc53daf6642c045983881\n 2021 https://syzbot.org/bug?id=3302dc1c0e2b9c94f2e8edb404eabc9267bc6f90\n\n[1] https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n[2] https://lore.kernel.org/lkml/20250410093146.3776801-2-aitsygunka@yandex.ru/"}], "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": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "d85f19aaef42a03e3e4765d659c761c8750a7f23", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "76861031b43a18065d13f9ffb8595d25c7576005", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "bbfedc84714064ea4845e6b76f96316eb5bb65d8", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "f2a6abc670104fc3e383ee3b1cf35c070485e3df", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "c581e30ae5b332d8acef64475a211b3f82099941", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "509b51327320bdeaef1969248177a446ded073ab", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "ddcdac47e1f2651c7be60e299f98faf981522797", "status": "affected", "versionType": "git"}, {"version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf", "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/atm/ueagle-atm.c"], "versions": [{"version": "2.6.16", "status": "affected"}, {"version": "0", "lessThan": "2.6.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "2.6.16", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d85f19aaef42a03e3e4765d659c761c8750a7f23"}, {"url": "https://git.kernel.org/stable/c/76861031b43a18065d13f9ffb8595d25c7576005"}, {"url": "https://git.kernel.org/stable/c/bbfedc84714064ea4845e6b76f96316eb5bb65d8"}, {"url": "https://git.kernel.org/stable/c/f2a6abc670104fc3e383ee3b1cf35c070485e3df"}, {"url": "https://git.kernel.org/stable/c/c581e30ae5b332d8acef64475a211b3f82099941"}, {"url": "https://git.kernel.org/stable/c/509b51327320bdeaef1969248177a446ded073ab"}, {"url": "https://git.kernel.org/stable/c/ddcdac47e1f2651c7be60e299f98faf981522797"}, {"url": "https://git.kernel.org/stable/c/e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf"}], "title": "usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68456", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:49:54.189659Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:55:17.329Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68456", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:49:54.189659Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:49:55.602Z"}}], "cna": {"title": "usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "d85f19aaef42a03e3e4765d659c761c8750a7f23", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "76861031b43a18065d13f9ffb8595d25c7576005", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "bbfedc84714064ea4845e6b76f96316eb5bb65d8", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "f2a6abc670104fc3e383ee3b1cf35c070485e3df", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "c581e30ae5b332d8acef64475a211b3f82099941", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "509b51327320bdeaef1969248177a446ded073ab", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "ddcdac47e1f2651c7be60e299f98faf981522797", "versionType": "git"}, {"status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "lessThan": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf", "versionType": "git"}], "programFiles": ["drivers/usb/atm/ueagle-atm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.16"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.16", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.261", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/atm/ueagle-atm.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/d85f19aaef42a03e3e4765d659c761c8750a7f23"}, {"url": "https://git.kernel.org/stable/c/76861031b43a18065d13f9ffb8595d25c7576005"}, {"url": "https://git.kernel.org/stable/c/bbfedc84714064ea4845e6b76f96316eb5bb65d8"}, {"url": "https://git.kernel.org/stable/c/f2a6abc670104fc3e383ee3b1cf35c070485e3df"}, {"url": "https://git.kernel.org/stable/c/c581e30ae5b332d8acef64475a211b3f82099941"}, {"url": "https://git.kernel.org/stable/c/509b51327320bdeaef1969248177a446ded073ab"}, {"url": "https://git.kernel.org/stable/c/ddcdac47e1f2651c7be60e299f98faf981522797"}, {"url": "https://git.kernel.org/stable/c/e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()\n\nueagle-atm uses the asynchronous request_firmware_nowait() in .probe(),\nbut does not wait for its completion, not even in .disconnect(); so, if the\ndevice is unplugged meanwhile, its teardown runs concurrently with that.\n\nEven though this inconsistency is worth addressing on its own, it has also\ntriggered several bug reports in syzbot over the years (some auto-closed)\nwhere the firmware sysfs fallback mechanism (CONFIG_FW_LOADER_USER_HELPER)\ncreates a firmware subdirectory in the device directory during its removal,\nwhich might hit unexpected conditions in kernfs, apparently, depending at\nwhich point the add and remove operations raced. (See links.)\n\nThe pattern is:\n\nusb ?-?: Direct firmware load for ueagle-atm/eagle?.fw failed with error -2\nusb ?-?: Falling back to sysfs fallback for: ueagle-atm/eagle?.fw\n<ERROR>\nCall trace:\n ...\n kernfs_create_dir_ns\n sysfs_create_dir_ns\n create_dir\n kobject_add_internal\n kobject_add_varg\n kobject_add\n class_dir_create_and_add\n get_device_parent\n device_add\n fw_load_sysfs_fallback\n fw_load_from_user_helper\n firmware_fallback_sysfs\n _request_firmware\n request_firmware_work_func\n ...\n\n(Some variations are observed, after fw_load_sysfs_fallback(), e.g., [1].)\n\nWhile the kernfs side is being looked at, the ueagle-atm side can be fixed\nby waiting for the pre-firmware load in the .disconnect() handler.\n\nThis change has a similar approach to previous work by Andrey Tsygunka [2]\n(wait_for_completion() in .disconnect()), but it is relatively different in\ndesign/implementation; using the Originally-by tag for credit assignment.\n\nThis has been tested with:\n- synthetic reproducer to check the error path;\n- USB gadget (virtual device) to check the firmware upload path;\n- QEMU device emulator to check the device ID re-enumeration path;\n(The latter two were written by Claude; no other code/text in this commit.)\n\nLinks (year first reported):\n 2025 https://syzbot.org/bug?extid=ce1e5a1b4e086b43e56d\n 2025 https://syzbot.org/bug?extid=9af8471255ac36e34fd4\n 2024 https://syzbot.org/bug?extid=306212936b13e520679d\n 2023 https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n 2022 https://syzbot.org/bug?extid=782984d6f1701b526edb\n 2021 https://syzbot.org/bug?id=f3f221579f4ef7e9691281f3c6f56c05f83e8490\n 2021 https://syzbot.org/bug?id=84d86f0d71394829df6fc53daf6642c045983881\n 2021 https://syzbot.org/bug?id=3302dc1c0e2b9c94f2e8edb404eabc9267bc6f90\n\n[1] https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n[2] https://lore.kernel.org/lkml/20250410093146.3776801-2-aitsygunka@yandex.ru/"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.261", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.212", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.178", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.145", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.97", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.40", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.5", "versionStartIncluding": "2.6.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "2.6.16"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:05:56.711Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68456", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:55:17.329Z", "dateReserved": "2026-07-30T09:28:09.395Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-15T05:51:17.487Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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": "d85f19aaef42a03e3e4765d659c761c8750a7f23", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "76861031b43a18065d13f9ffb8595d25c7576005", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "bbfedc84714064ea4845e6b76f96316eb5bb65d8", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "f2a6abc670104fc3e383ee3b1cf35c070485e3df", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "c581e30ae5b332d8acef64475a211b3f82099941", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "509b51327320bdeaef1969248177a446ded073ab", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "ddcdac47e1f2651c7be60e299f98faf981522797", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}, {"lessThan": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf", "status": "affected", "version": "b72458a80c75cab832248f536412f386e20a93a0", "versionType": "git"}]}, {"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": "2.6.16"}, {"lessThan": "2.6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()\n\nueagle-atm uses the asynchronous request_firmware_nowait() in .probe(),\nbut does not wait for its completion, not even in .disconnect(); so, if the\ndevice is unplugged meanwhile, its teardown runs concurrently with that.\n\nEven though this inconsistency is worth addressing on its own, it has also\ntriggered several bug reports in syzbot over the years (some auto-closed)\nwhere the firmware sysfs fallback mechanism (CONFIG_FW_LOADER_USER_HELPER)\ncreates a firmware subdirectory in the device directory during its removal,\nwhich might hit unexpected conditions in kernfs, apparently, depending at\nwhich point the add and remove operations raced. (See links.)\n\nThe pattern is:\n\nusb ?-?: Direct firmware load for ueagle-atm/eagle?.fw failed with error -2\nusb ?-?: Falling back to sysfs fallback for: ueagle-atm/eagle?.fw\n<ERROR>\nCall trace:\n ...\n kernfs_create_dir_ns\n sysfs_create_dir_ns\n create_dir\n kobject_add_internal\n kobject_add_varg\n kobject_add\n class_dir_create_and_add\n get_device_parent\n device_add\n fw_load_sysfs_fallback\n fw_load_from_user_helper\n firmware_fallback_sysfs\n _request_firmware\n request_firmware_work_func\n ...\n\n(Some variations are observed, after fw_load_sysfs_fallback(), e.g., [1].)\n\nWhile the kernfs side is being looked at, the ueagle-atm side can be fixed\nby waiting for the pre-firmware load in the .disconnect() handler.\n\nThis change has a similar approach to previous work by Andrey Tsygunka [2]\n(wait_for_completion() in .disconnect()), but it is relatively different in\ndesign/implementation; using the Originally-by tag for credit assignment.\n\nThis has been tested with:\n- synthetic reproducer to check the error path;\n- USB gadget (virtual device) to check the firmware upload path;\n- QEMU device emulator to check the device ID re-enumeration path;\n(The latter two were written by Claude; no other code/text in this commit.)\n\nLinks (year first reported):\n 2025 https://syzbot.org/bug?extid=ce1e5a1b4e086b43e56d\n 2025 https://syzbot.org/bug?extid=9af8471255ac36e34fd4\n 2024 https://syzbot.org/bug?extid=306212936b13e520679d\n 2023 https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n 2022 https://syzbot.org/bug?extid=782984d6f1701b526edb\n 2021 https://syzbot.org/bug?id=f3f221579f4ef7e9691281f3c6f56c05f83e8490\n 2021 https://syzbot.org/bug?id=84d86f0d71394829df6fc53daf6642c045983881\n 2021 https://syzbot.org/bug?id=3302dc1c0e2b9c94f2e8edb404eabc9267bc6f90\n\n[1] https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2\n[2] https://lore.kernel.org/lkml/20250410093146.3776801-2-aitsygunka@yandex.ru/"}], "id": "CVE-2026-68456", "lastModified": "2026-11-06T17:19:33.870", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68456", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:49:54.189659Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:17:32.713", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/509b51327320bdeaef1969248177a446ded073ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76861031b43a18065d13f9ffb8595d25c7576005"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bbfedc84714064ea4845e6b76f96316eb5bb65d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c581e30ae5b332d8acef64475a211b3f82099941"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d85f19aaef42a03e3e4765d659c761c8750a7f23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ddcdac47e1f2651c7be60e299f98faf981522797"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2a6abc670104fc3e383ee3b1cf35c070485e3df"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect()", "id": "2516560", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516560"}, "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"}, "cwe": "CWE-366", "details": ["A flaw was found in the Linux kernel's ueagle-atm USB driver. This driver uses an asynchronous mechanism for loading firmware but does not wait for its completion when a device is disconnected. This creates a race condition where the device's teardown can run concurrently with firmware loading. If a device is unplugged during this process, it can lead to unexpected conditions in the kernel's file system (kernfs), potentially causing system instability or a denial of service."], "name": "CVE-2026-68456", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68456\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68456\nhttps://lore.kernel.org/linux-cve-announce/2026081502-CVE-2026-68456-0655@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,d85f19aaef42a03e3e4765d659c761c8750a7f23)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,76861031b43a18065d13f9ffb8595d25c7576005)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,bbfedc84714064ea4845e6b76f96316eb5bb65d8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,c581e30ae5b332d8acef64475a211b3f82099941)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,f2a6abc670104fc3e383ee3b1cf35c070485e3df)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,509b51327320bdeaef1969248177a446ded073ab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,ddcdac47e1f2651c7be60e299f98faf981522797)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b72458a80c75cab832248f536412f386e20a93a0,e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.261,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.212,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.178,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.145,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.97,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.40,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.5,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T07:30:05.547269+00:00", "updated": "2026-08-18T01:30:05.446672+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362", "CWE-366"]}