From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Wed, 8 Sep 2021 15:39:53 +0000 (+0300)
Subject: fs/ntfs3: Fix insertion of attr in ni_ins_attr_ext
X-Git-Tag: accepted/tizen/unified/20230118.172025~6190^2~27
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee9d4810aab95208541d2807f9d114f1d5edcee0;p=platform%2Fkernel%2Flinux-rpi.git

fs/ntfs3: Fix insertion of attr in ni_ins_attr_ext

Do not try to insert attribute if there is no room in record.

Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---

diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index 1e1a090..0d00b23 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -953,6 +953,13 @@ static int ni_ins_attr_ext(struct ntfs_inode *ni, struct ATTR_LIST_ENTRY *le,
 			continue;
 		}
 
+		/*
+		 * Do not try to insert this attribute
+		 * if there is no room in record.
+		 */
+		if (le32_to_cpu(mi->mrec->used) + asize > sbi->record_size)
+			continue;
+
 		/* Try to insert attribute into this subrecord. */
 		attr = ni_ins_new_attr(ni, mi, le, type, name, name_len, asize,
 				       name_off, svcn, ins_le);