shithub: riscv

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git: fix nil dereference in corrupt repositories

--- a/sys/src/cmd/git/get.c

+++ b/sys/src/cmd/git/get.c

@@ -280,7 +280,7 @@

 		if(hasheq(&have[i], &Zhash) || oshas(&hadobj, have[i]))

 			continue;

 		if((o = readobject(have[i])) == nil)

-			sysfatal("missing object we should have: %H", have[i]);

+			sysfatal("missing exected object: %H", have[i]);

 		if(fmtpkt(c, "have %H", o->hash) == -1)

 			sysfatal("write: %r");

 		enqueueparent(&haveq, o);

--- a/sys/src/cmd/git/ref.c

+++ b/sys/src/cmd/git/ref.c

@@ -126,7 +126,7 @@

 	for(i = 0; i < nhead; i++){

 		if((o = readobject(head[i])) == nil){

-			fprint(2, "warning: %H does not point at commit\n", o->hash);

+			fprint(2, "warning: %H does not point at commit\n", head[i]);

 			werrstr("read head %H: %r", head[i]);

 			return -1;

 		}