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lxc: Avoid segfault of libvirt_lxc helper on early cleanup paths

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Early jumps to the cleanup label caused a crash of the libvirt_lxc
container helper as the cleanup section called
virLXCControllerDeleteInterfaces(ctrl) without checking the ctrl argument
for NULL. The argument was de-referenced soon after.

$ /usr/libexec/libvirt_lxc
/usr/libexec/libvirt_lxc: missing --name argument for configuration
Segmentation fault
(cherry picked from commit 81efb13b4a)
This commit is contained in:
Peter Krempa 2012-11-26 12:13:56 +01:00 committed by Cole Robinson
parent 89cecbbecc
commit fac1a19dfc
1 changed files with 2 additions and 1 deletions
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3
src/lxc/lxc_controller.c
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@ -1649,7 +1649,8 @@ int main(int argc, char *argv[])
cleanup: cleanup:
virPidFileDelete(LXC_STATE_DIR, name); virPidFileDelete(LXC_STATE_DIR, name);
virLXCControllerDeleteInterfaces(ctrl); if (ctrl)
virLXCControllerDeleteInterfaces(ctrl);
for (i = 0 ; i < nttyFDs ; i++) for (i = 0 ; i < nttyFDs ; i++)
VIR_FORCE_CLOSE(ttyFDs[i]); VIR_FORCE_CLOSE(ttyFDs[i]);
VIR_FREE(ttyFDs); VIR_FREE(ttyFDs);