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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-41035

USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < d8418fd083d1b90a6c007cf8dcf81aeae274727baffected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < 60abea505b726b38232a0ef410d2bd1994a77f78affected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < d09dd21bb5215d583ca9a1cb1464dbc77a7e88cfaffected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < 2bd8534a1b83c65702aec3cab164170f8e584188affected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < 9edcf317620d7c6a8354911b69b874cf89716646affected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < 647d61aef106dbed9c70447bcddbd4968e67ca64affected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < 37514a5c1251a8c5c95c323f55050736e7069ac7affected
  • 0a8fd1346254974c3a852338508e4a4cddbb35f1 to < a368ecde8a5055b627749b09c6218ef793043e47affected
  • c3726b442527ab31c7110d0445411f5b5343db01affected
  • 15668b4354b38b41b316571deed2763d631b2977affected
  • 8597a9245181656ae2ef341906e5f40af323fbcaaffected
  • 264024a2676ba7d91fe7b1713b2c32d1b0b508cbaffected
  • b0de742a1be16b76b534d088682f18cf57f012d2affected
  • 7cc00abef071a8a7d0f4457b7afa2f57f683d83faffected
  • 05b0f2fc3c2f9efda47439557e0d51faca7e43edaffected
  • 3.2.87 to < 3.3affected
  • 3.10.106 to < 3.11affected
  • 3.12.70 to < 3.13affected
  • 3.16.42 to < 3.17affected
  • 4.1.39 to < 4.2affected
  • 4.4.42 to < 4.5affected
  • 4.9.3 to < 4.10affected

Linux Linux

Default version status: affected

  • 4.10affected
  • 0 to < 4.10unaffected
  • 4.19.318 to ≤ 4.19.*unaffected
  • 5.4.280 to ≤ 5.4.*unaffected
  • 5.10.222 to ≤ 5.10.*unaffected
  • 5.15.163 to ≤ 5.15.*unaffected
  • 6.1.100 to ≤ 6.1.*unaffected
  • 6.6.41 to ≤ 6.6.*unaffected
  • 6.9.10 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References