[CRIU] [PATCH 1/2] compel: Don't BUG if exec area is too small

Cyrill Gorcunov gorcunov at openvz.org
Mon Dec 5 13:15:07 PST 2016


Simply return MAP_FAILED here.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 compel/src/lib/infect.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/compel/src/lib/infect.c b/compel/src/lib/infect.c
index adef4db9e30e..fd92ee5d1da6 100644
--- a/compel/src/lib/infect.c
+++ b/compel/src/lib/infect.c
@@ -1008,8 +1008,10 @@ static unsigned long find_executable_area(int pid)
 
 		/* f now points at " rwx" (yes, with space) part */
 		if (f[3] == 'x') {
-			BUG_ON(end - start < PARASITE_START_AREA_MIN);
-			ret = start;
+			if ((end - start) >= PARASITE_START_AREA_MIN)
+				ret = start;
+			else
+				pr_err("No sutable area found to run syscalls\n");
 			break;
 		}
 	}
-- 
2.7.4



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