Title: [6821] trunk/fs/binfmt_flat.c: Fix a crash with shared flat in 2.6.30.
- Revision
- 6821
- Author
- bernds
- Date
- 2009-06-22 06:40:06 -0500 (Mon, 22 Jun 2009)
Log Message
Fix a crash with shared flat in 2.6.30.
prepare_binprm now requires a cred pointer to be set up, which isn't done in
binfmt_flat.c.
Modified Paths
Diff
Modified: trunk/fs/binfmt_flat.c (6820 => 6821)
--- trunk/fs/binfmt_flat.c 2009-06-22 06:14:33 UTC (rev 6820)
+++ trunk/fs/binfmt_flat.c 2009-06-22 11:40:06 UTC (rev 6821)
@@ -853,14 +853,23 @@
/* Open the file up */
bprm.filename = buf;
bprm.file = open_exec(bprm.filename);
+ bprm.cred = NULL;
res = PTR_ERR(bprm.file);
if (IS_ERR(bprm.file))
return res;
+ bprm.cred = prepare_exec_creds();
+ if (!bprm.cred)
+ goto out;
+
res = prepare_binprm(&bprm);
if (res <= (unsigned long)-4096)
res = load_flat_file(&bprm, libs, id, NULL, NULL);
+out:
+ if (bprm.cred)
+ abort_creds(bprm.cred);
+
if (bprm.file) {
allow_write_access(bprm.file);
fput(bprm.file);
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