PT-2022-7641 · Linux+8 · Linux Kernel+8
Syzbot
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Published
2022-03-14
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Updated
2025-09-29
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CVE-2022-48836
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2
Description
The issue is related to a wrong endpoint type in the
usb submit urb() function, which can cause a warning. The problem arises because there was a check for the number of endpoints but not for the type of endpoint. This can lead to a denial of service. The usb find common endpoints() helper is used to fix the issue by properly checking endpoint types.Recommendations
To resolve the issue, update the Linux kernel to a version that includes the fix for the wrong endpoint type check in the
usb submit urb() function. Specifically, update to a version later than 5.17.0-rc6-syzkaller-00226-g07ebd38a0da2. As a temporary workaround, consider disabling the aiptek open() function until a patch is available.Exploit
Fix
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu