46f839c3f
Denys Vlasenko
2018-01-19
Subject
hush: fix a case where EXIT trap may modify its code mid-flight
Binary
No binary (build failed)
Architecture & Compiler Flags
—
Build Log
(log yok)
Commit Diff GitHub →
shell/hush.c+1 -1
| @@ -1936,7 +1936,7 @@ static void hush_exit(int exitcode) | |
| if (G.exiting <= 0 && G_traps && G_traps[0] && G_traps[0][0]) { | |
| char *argv[3]; | |
| /* argv[0] is unused */ | |
| - | argv[1] = G_traps[0]; |
| + | argv[1] = xstrdup(G_traps[0]); /* copy, since EXIT trap handler may modify G_traps[0] */ |
| argv[2] = NULL; | |
| G.exiting = 1; /* prevent EXIT trap recursion */ | |
| /* Note: G_traps[0] is not cleared! | |