CVE-2026-68344
usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect
Description
In the Linux kernel, the following vulnerability has been resolved: usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect uea_probe() distinguishes a pre-firmware device from a post-firmware one using the USB id (UEA_IS_PREFIRM()), and stores a different object as the interface data in each case: a 'struct completion' for a pre-firmware device (to be waited on in .disconnect()), or a 'struct usbatm_data' for a post-firmware one. uea_disconnect() instead tells the two apart by the number of interfaces of the active configuration (a pre-firmware device exposes a single interface, ADI930 has 2 and eagle has 3), and casts the interface data accordingly. Because the two handlers use different criteria, a crafted device that advertises a pre-firmware id together with a multi-interface descriptor (or a post-firmware id with a single interface) makes them disagree: the small 'struct completion' stored by uea_probe() is then passed to usbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes instance->serialize, reading past the end of the allocation: BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80 Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982 ... __mutex_lock+0x152a/0x1b80 usbatm_usb_disconnect+0x70/0x820 uea_disconnect+0x133/0x2c0 usb_unbind_interface+0x1dd/0x9e0 ... which belongs to the cache kmalloc-96 of size 96 The buggy address is located 0 bytes to the right of allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60) Reject such inconsistent descriptors in uea_probe() so that both handlers always make the same pre/post-firmware decision.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply the kernel patch for the ueagle-atm driver.
- Ensure USB device descriptors are consistent.
- Update the Linux kernel to a patched version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68344.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68344 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68344
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68344 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68344 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'f2a6abc670104fc3e383ee3b1cf35c070485e3df', 'lessThan': 'c035b1198906dd5bd3df9a3045b59254bad1ea7a', 'versionType': 'git'}, {'status': 'affected', 'version': 'c581e30ae5b332d8acef64475a211b3f82099941', 'lessThan': '9904a46401198872ab3de34fd11f383831ef3428', 'versionType': 'git'}, {'status': 'affected', 'version': '509b51327320bdeaef1969248177a446ded073ab', 'lessThan': 'd0a57f19fe2865b9747484f5f9c631f944ed9a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ddcdac47e1f2651c7be60e299f98faf981522797', 'lessThan': '0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce', 'versionType': 'git'}, {'status': 'affected', 'version': 'e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf', 'lessThan': '71132cedd1ecbc4032d76e9928c18a10f7e39b80', 'versionType': 'git'}, {'status': 'affected', 'version': 'd85f19aaef42a03e3e4765d659c761c8750a7f23', 'versionType': 'git'}, {'status': 'affected', 'version': '76861031b43a18065d13f9ffb8595d25c7576005', 'versionType': 'git'}, {'status': 'affected', 'version': 'bbfedc84714064ea4845e6b76f96316eb5bb65d8', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.145', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.18.40', 'lessThan': '6.18.42', 'versionType': 'semver'}, {'status': 'affected', 'version': '7.1.5', 'lessThan': '7.1.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.10.261', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.212', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.178', 'lessThan': '6.2', 'versionType': 'semver'}], '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': '7.2-rc3'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.2-rc3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/atm/ueagle-atm.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'f2a6abc670104fc3e383ee3b1cf35c070485e3df', 'lessThan': 'c035b1198906dd5bd3df9a3045b59254bad1ea7a', 'versionType': 'git'}, {'status': 'affected', 'version': 'c581e30ae5b332d8acef64475a211b3f82099941', 'lessThan': '9904a46401198872ab3de34fd11f383831ef3428', 'versionType': 'git'}, {'status': 'affected', 'version': '509b51327320bdeaef1969248177a446ded073ab', 'lessThan': 'd0a57f19fe2865b9747484f5f9c631f944ed9a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ddcdac47e1f2651c7be60e299f98faf981522797', 'lessThan': '0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce', 'versionType': 'git'}, {'status': 'affected', 'version': 'e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf', 'lessThan': '71132cedd1ecbc4032d76e9928c18a10f7e39b80', 'versionType': 'git'}, {'status': 'affected', 'version': 'd85f19aaef42a03e3e4765d659c761c8750a7f23', 'versionType': 'git'}, {'status': 'affected', 'version': '76861031b43a18065d13f9ffb8595d25c7576005', 'versionType': 'git'}, {'status': 'affected', 'version': 'bbfedc84714064ea4845e6b76f96316eb5bb65d8', 'versionType': 'git'}, {'status': 'affected', 'version': '5.10.261', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.212', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.178', 'lessThan': '6.2', 'versionType': 'semver'}], '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': '6.6.145', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.18.40', 'lessThan': '6.18.42', 'versionType': 'semver'}, {'status': 'affected', 'version': '7.1.5', 'lessThan': '7.1.6', 'versionType': 'semver'}], 'programFiles': ['drivers/usb/atm/ueagle-atm.c'], 'defaultStatus': 'unaffected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'f2a6abc670104fc3e383ee3b1cf35c070485e3df', 'lessThan': 'c035b1198906dd5bd3df9a3045b59254bad1ea7a', 'versionType': 'git'}, {'status': 'affected', 'version': 'c581e30ae5b332d8acef64475a211b3f82099941', 'lessThan': '9904a46401198872ab3de34fd11f383831ef3428', 'versionType': 'git'}, {'status': 'affected', 'version': '509b51327320bdeaef1969248177a446ded073ab', 'lessThan': 'd0a57f19fe2865b9747484f5f9c631f944ed9a0f', 'versionType': 'git'}, {'status': 'affected', 'version': 'ddcdac47e1f2651c7be60e299f98faf981522797', 'lessThan': '0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce', 'versionType': 'git'}, {'status': 'affected', 'version': 'e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf', 'lessThan': '71132cedd1ecbc4032d76e9928c18a10f7e39b80', 'versionType': 'git'}, {'status': 'affected', 'version': 'd85f19aaef42a03e3e4765d659c761c8750a7f23', 'versionType': 'git'}, {'status': 'affected', 'version': '76861031b43a18065d13f9ffb8595d25c7576005', 'versionType': 'git'}, {'status': 'affected', 'version': 'bbfedc84714064ea4845e6b76f96316eb5bb65d8', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.145', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.97', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.18.40', 'lessThan': '6.18.42', 'versionType': 'semver'}, {'status': 'affected', 'version': '7.1.5', 'lessThan': '7.1.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.10.261', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'affected', 'version': '5.15.212', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.1.178', 'lessThan': '6.2', 'versionType': 'semver'}], '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': '7.2-rc3'}, {'status': 'unaffected', 'version': '0', 'lessThan': '7.2-rc3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/usb/atm/ueagle-atm.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect uea_probe() distinguishes a pre-firmware device from a post-firmware one using the USB id (UEA_IS_PREFIRM()), and stores a different object as the interface data in each case: a 'struct completion' for a pre-firmware device (to be waited on in .disconnect()), or a 'struct usbatm_data' for a post-firmware one. uea_disconnect() instead tells the two apart by the number of interfaces of the active configuration (a pre-firmware device exposes a single interface, ADI930 has 2 and eagle has 3), and casts the interface data accordingly. Because the two handlers use different criteria, a crafted device that advertises a pre-firmware id together with a multi-interface descriptor (or a post-firmware id with a single interface) makes them disagree: the small 'struct completion' stored by uea_probe() is then passed to usbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes instance->serialize, reading past the end of the allocation: BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80 Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982 ... __mutex_lock+0x152a/0x1b80 usbatm_usb_disconnect+0x70/0x820 uea_disconnect+0x133/0x2c0 usb_unbind_interface+0x1dd/0x9e0 ... which belongs to the cache kmalloc-96 of size 96 The buggy address is located 0 bytes to the right of allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60) Reject such inconsistent descriptors in uea_probe() so that both handlers always make the same pre/post-firmware decision. Added Reference https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce Added Reference https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80 Added Reference https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428 Added Reference https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a Added Reference https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f