From a33fb016e49e37aafab18dc3c8314d6399cb4727 Mon Sep 17 00:00:00 2001
From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Fri, 30 Aug 2024 13:50:18 +0300
Subject: [PATCH] fs/ntfs3: Fix general protection fault in run_is_mapped_full
Fixed deleating of a non-resident attribute in ntfs_create_inode()
rollback.
Reported-by: syzbot+9af29acd8f27fbce94bc@syzkaller.appspotmail.com
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
fs/ntfs3/inode.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 81746a959b47a..5dc2614049573 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -1718,7 +1718,10 @@ int ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir,
attr = ni_find_attr(ni, NULL, NULL, ATTR_EA, NULL, 0, NULL, NULL);
if (attr && attr->non_res) {
/* Delete ATTR_EA, if non-resident. */
- attr_set_size(ni, ATTR_EA, NULL, 0, NULL, 0, NULL, false, NULL);
+ struct runs_tree run;
+ run_init(&run);
+ attr_set_size(ni, ATTR_EA, NULL, 0, &run, 0, NULL, false, NULL);
+ run_close(&run);
}
if (rp_inserted)
--
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