Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death
Small correction - I forgot to add setuid(0) ;)
PARENT CHILD
----------------------------------------------------------------
fork()
prctl(PR_SET_PDEATHSIG)
execve("/bin/setuid-binary")
setuid(0)
exit()'ed or killed
child receives NO signal this time
PARENT CHILD
----------------------------------------------------------------
fork()
prctl(PR_SET_PDEATHSIG)
execve("/bin/setuid-binary")
setuid(0)
execve("/bin/setuid-binary")
exit()'ed or killed
privileged process receives the signal
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