Description: Integer overflow and infoleak through compat PTRACE_PEEKSIGINFO
References:
Notes:
 bwh> This is specifically for the compat case. A similar bug was
 bwh> introduced later for the native case, but not included in a
 bwh> stable release.
Bugs:
upstream: released (4.20-rc1) [a36700589b85443e28170be59fa11c8a104130a5]
4.19-upstream-stable: released (4.19.2) [04eb71942e858c840d1e3a63d81d9bec83b157c5]
4.9-upstream-stable: N/A "Vulnerable code introduced later"
3.16-upstream-stable: N/A "Vulnerable code introduced later"
sid: released (4.19.9-1)
4.9-stretch-security: N/A "Vulnerable code introduced later"
3.16-jessie-security: N/A "Vulnerable code introduced later"