linux-kernel - Forwarded: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <68cc5eea.050a0220.28a605.000c.GAE@google.com>
Date: Thu, 18 Sep 2025 12:35:06 -0700
From: syzbot <syzbot+332bd4e9d148f11a87dc@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Forwarded: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3)

For archival purposes, forwarding an incoming command email to
linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com.

***

Subject: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3)
Author: sidharthseela@...il.com

Signed-off-by: Sidharth Seela <sidharthseela@...il.com>
Reported-by: syzbot+332bd4e9d148f11a87dc@...kaller.appspotmail.com

#syz test
diff --git a/fs/ntfs3/index.c b/fs/ntfs3/index.c
index 1bf2a6593dec..3c44af1af9a0 100644
--- a/fs/ntfs3/index.c
+++ b/fs/ntfs3/index.c
@@ -718,7 +718,7 @@ static struct NTFS_DE *hdr_find_e(const struct ntfs_index *indx,
 				  const struct INDEX_HDR *hdr, const void *key,
 				  size_t key_len, const void *ctx, int *diff)
 {
-	struct NTFS_DE *e, *found = NULL;
+	struct NTFS_DE *e = NULL, *found = NULL;
 	NTFS_CMP_FUNC cmp = indx->cmp;
 	int min_idx = 0, mid_idx, max_idx = 0;
 	int diff2;
-- 
2.47.3