diff options
| author | Philipp Rudo <prudo@linux.vnet.ibm.com> | 2017-04-11 14:28:51 +0100 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2017-04-11 14:28:51 +0100 |
| commit | a6acac06113f4b04fa0333ee2a3ab3025b43ee7c (patch) | |
| tree | c49d011da715d7eb940f9b54ed3fac91f63725f4 /gdb/linux-nat.c | |
| parent | 64403bd1832e10aa8324194968f72bdc5feb5aeb (diff) | |
Fix read after xfree in linux-nat.c:linux_nat_detach
At the end of linux_nat_detach the main_lwp is deleted (delete_lwp).
This is problematic as during detach (detach_one_lwp and
linux_fork_detach) main_lwp already gets freed. Thus calling
delete_lwp causes a read after free. Fix it by removing the
unnecessary delete_lwp.
gdb/ChangeLog:
2017-04-11 Philipp Rudo <prudo@linux.vnet.ibm.com>
* linux-nat.c (linux_nat_detach): Remove delete_lwp call.
Diffstat (limited to 'gdb/linux-nat.c')
| -rw-r--r-- | gdb/linux-nat.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c index b06e400fdc..8dececf2c5 100644 --- a/gdb/linux-nat.c +++ b/gdb/linux-nat.c @@ -1549,7 +1549,6 @@ linux_nat_detach (struct target_ops *ops, const char *args, int from_tty) inf_ptrace_detach_success (ops); } - delete_lwp (main_lwp->ptid); } /* Resume execution of the inferior process. If STEP is nonzero, |