4.18-stable review patch. If anyone has any objections, please let me know.
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From: Richard Weinberger richard@nod.at
commit eef19816ada3abd56d9f20c88794cc2fea83ebb2 upstream.
Allocate the buffer after we return early. Otherwise memory is being leaked.
Cc: stable@vger.kernel.org Fixes: 1e51764a3c2a ("UBIFS: add new flash file system") Signed-off-by: Richard Weinberger richard@nod.at Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- fs/ubifs/lprops.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/fs/ubifs/lprops.c +++ b/fs/ubifs/lprops.c @@ -1089,10 +1089,6 @@ static int scan_check_cb(struct ubifs_in } }
- buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL); - if (!buf) - return -ENOMEM; - /* * After an unclean unmount, empty and freeable LEBs * may contain garbage - do not scan them. @@ -1111,6 +1107,10 @@ static int scan_check_cb(struct ubifs_in return LPT_SCAN_CONTINUE; }
+ buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL); + if (!buf) + return -ENOMEM; + sleb = ubifs_scan(c, lnum, 0, buf, 0); if (IS_ERR(sleb)) { ret = PTR_ERR(sleb);