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Vulnerability Change Records for CVE-2026-63956

Change History

New CVE Received from kernel.org 7/19/2026 12:17:14 PM

Action Type Old Value New Value
Added Description

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

USB: serial: cypress_m8: fix memory corruption with small endpoint

Make sure that the interrupt-out endpoint max packet size is at least
eight bytes to avoid user-controlled slab corruption or NULL-pointer
dereference should a malicious device report a smaller size.
Added Reference

                  
                
              
https://git.kernel.org/stable/c/1ef25704bd3b625fd151c09feee459479f71ee64
Added Reference

                  
                
              
https://git.kernel.org/stable/c/284105c40fc31fff90cdab8a0377aaeb92f87f0e
Added Reference

                  
                
              
https://git.kernel.org/stable/c/4bcaa59f403dbde6328604a500d65ee8d40975d9
Added Reference

                  
                
              
https://git.kernel.org/stable/c/4fcb22218f0a7229b7ce3b3952fb644def293fa5
Added Reference

                  
                
              
https://git.kernel.org/stable/c/52e18ae0c47c5c89e18fcd8022f287f7cc8802ec
Added Reference

                  
                
              
https://git.kernel.org/stable/c/6c13f3bb652bc8665e709ba07122612586aea648
Added Reference

                  
                
              
https://git.kernel.org/stable/c/ad3d1628a46134276546d7a12fedf04be9979158
Added Reference

                  
                
              
https://git.kernel.org/stable/c/e1a9d791fd66ab2431b9e6f6f835823809869047
Added Affected

                  
                
              
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/usb/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"4fcb22218f0a7229b7ce3b3952fb644def293fa5","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"ad3d1628a46134276546d7a12fedf04be9979158","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"52e18ae0c47c5c89e18fcd8022f287f7cc8802ec","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"4bcaa59f403dbde6328604a500d65ee8d40975d9","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"1ef25704bd3b625fd151c09feee459479f71ee64","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"284105c40fc31fff90cdab8a0377aaeb92f87f0e","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"6c13f3bb652bc8665e709ba07122612586aea648","versionType":"git","status":"affected"},{"version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","lessThan":"e1a9d791fd66ab2431b9e6f6f835823809869047","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/usb/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"2.6.26","status":"affected"},{"version":"0","lessThan":"2.6.26","versionType":"semver","status":"unaffected"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.93","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.35","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.0.12","lessThanOrEqual":"7.0.*","versionType":"semver","status":"unaffected"},{"version":"7.1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]