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Vulnerability Change Records for CVE-2026-63904

Change History

New CVE Received from kernel.org 7/19/2026 12:17:08 PM

Action Type Old Value New Value
Added Description

                  
                
              
In the Linux kernel, the following vulnerability has been resolved:

usb: usbtmc: check URB actual_length for interrupt-IN notifications

USBTMC devices can use an optional interrupt endpoint for notification
messages. These typically contain two-byte headers indicating the
payload format, but the driver does not check if these headers are
present before accessing the data buffers. In cases where the URB
actual_length is not enough to fit these headers, the driver will either
cause an out-of-bounds read, or consume stale leftover data from a
previous notification.

Fix by checking if actual_data contains enough bytes for the headers,
otherwise resubmit URB to the interrupt endpoint.
Added Reference

                  
                
              
https://git.kernel.org/stable/c/52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd
Added Reference

                  
                
              
https://git.kernel.org/stable/c/5de7df75ef3a2756b25fe3d582a4a2970444fe5a
Added Reference

                  
                
              
https://git.kernel.org/stable/c/69020fa089f1bf0e1a10a15265f31b143a846409
Added Reference

                  
                
              
https://git.kernel.org/stable/c/75f6d3da2cc646983f41807ef98851569c12bca9
Added Reference

                  
                
              
https://git.kernel.org/stable/c/ae87f505917e703ae3b487d9663d78826ff43608
Added Reference

                  
                
              
https://git.kernel.org/stable/c/e3eec3005de44e7f37d8d7724be636446516ab42
Added Reference

                  
                
              
https://git.kernel.org/stable/c/e794bd67b3faf98af46f958897f6b91412c7d2a9
Added Reference

                  
                
              
https://git.kernel.org/stable/c/f141b01eaa58ac7e323931d670318aa247bff087
Added Affected

                  
                
              
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