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knfsd: avoid use of unitialised variables on error path when nfs exports 

We need to zero various parts of 'exp' before any 'goto out', otherwise when
we go to free the contents...  we die.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
NeilBrown 2007-05-09 02:34:52 -07:00 committed by Linus Torvalds
parent 5bd5f5812b
commit 402acd29e5
1 changed files with 7 additions and 7 deletions
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14
fs/nfsd/export.c
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@ -469,6 +469,13 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
nd.dentry = NULL;
exp.ex_path = NULL;
/* fs locations */
exp.ex_fslocs.locations = NULL;
exp.ex_fslocs.locations_count = 0;
exp.ex_fslocs.migrated = 0;
exp.ex_uuid = NULL;
if (mesg[mlen-1] != '\n')
return -EINVAL;
mesg[mlen-1] = 0;
@ -509,13 +516,6 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
if (exp.h.expiry_time == 0)
goto out;
/* fs locations */
exp.ex_fslocs.locations = NULL;
exp.ex_fslocs.locations_count = 0;
exp.ex_fslocs.migrated = 0;
exp.ex_uuid = NULL;
/* flags */
err = get_int(&mesg, &an_int);
if (err == -ENOENT)