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ubifs: Fix memory leak in lprobs self-check 

commit eef19816ad upstream.

Allocate the buffer after we return early.
Otherwise memory is being leaked.

Cc: <stable@vger.kernel.org>
Fixes: 1e51764a3c ("UBIFS: add new flash file system")
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Weinberger 2018-06-12 20:49:45 +02:00 committed by Greg Kroah-Hartman
parent 656d6e6f6d
commit a230db38a9
1 changed files with 4 additions and 4 deletions
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8
fs/ubifs/lprops.c
View File

@ -1091,10 +1091,6 @@ static int scan_check_cb(struct ubifs_info *c,
}
}
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.
@ -1113,6 +1109,10 @@ static int scan_check_cb(struct ubifs_info *c,
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);