CVE-2024-41035 (GCVE-0-2024-41035)
Vulnerability from cvelistv5
Published
2024-07-29 14:31
Modified
2025-11-03 21:59
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor Syzbot has identified a bug in usbcore (see the Closes: tag below) caused by our assumption that the reserved bits in an endpoint descriptor's bEndpointAddress field will always be 0. As a result of the bug, the endpoint_is_duplicate() routine in config.c (and possibly other routines as well) may believe that two descriptors are for distinct endpoints, even though they have the same direction and endpoint number. This can lead to confusion, including the bug identified by syzbot (two descriptors with matching endpoint numbers and directions, where one was interrupt and the other was bulk). To fix the bug, we will clear the reserved bits in bEndpointAddress when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1 specs say these bits are "Reserved, reset to zero".) This requires us to make a copy of the descriptor earlier in usb_parse_endpoint() and use the copy instead of the original when checking for duplicates.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: 0a8fd1346254974c3a852338508e4a4cddbb35f1
Version: c3726b442527ab31c7110d0445411f5b5343db01
Version: 15668b4354b38b41b316571deed2763d631b2977
Version: 8597a9245181656ae2ef341906e5f40af323fbca
Version: 264024a2676ba7d91fe7b1713b2c32d1b0b508cb
Version: b0de742a1be16b76b534d088682f18cf57f012d2
Version: 7cc00abef071a8a7d0f4457b7afa2f57f683d83f
Version: 05b0f2fc3c2f9efda47439557e0d51faca7e43ed
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