upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-05-28 04:12:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Always clear p_xthread if current thread no longer needs it, in theory, if

Browse source 
debugger exited without calling ptrace(PT_DETACH), there is a time window
that the p_xthread may be pointing to non-existing thread, in practical,
this is not a problem because child process soon will be killed by parent
process.
This commit is contained in:
David Xu 2012-07-10 05:45:13 +00:00
parent 4a4c0f7c24
commit 7ce60f6013
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sys/kern/kern_sig.c
View file

@ -2436,9 +2436,10 @@ ptracestop(struct thread *td, int sig)
}
stopme:
thread_suspend_switch(td);
if (!(p->p_flag & P_TRACED)) {
if (p->p_xthread == td)
p->p_xthread = NULL;
if (!(p->p_flag & P_TRACED))
break;
}
if (td->td_dbgflags & TDB_SUSPEND) {
if (p->p_flag & P_SINGLE_EXIT)
break;