[syzbot] [ntfs3?] WARNING in do_open_execat (2)

From: syzbot <syzbot+fe18c63ce101f2b358bb@syzkaller.appspotmail.com>
To: almaz.alexandrovich@paragon-software.com, brauner@kernel.org,
	 ebiederm@xmission.com, jack@suse.cz, keescook@chromium.org,
	 linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-mm@kvack.org, ntfs3@lists.linux.dev,
	syzkaller-bugs@googlegroups.com,  viro@zeniv.linux.org.uk
Subject: [syzbot] [ntfs3?] WARNING in do_open_execat (2)
Date: Tue, 09 Apr 2024 15:42:24 -0700	[thread overview]
Message-ID: <000000000000c5bc980615b1a25c@google.com> (raw)

Hello,

syzbot found the following issue on:

HEAD commit:    707081b61156 Merge branch 'for-next/core', remote-tracking..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=106d6d15180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=caeac3f3565b057a
dashboard link: https://syzkaller.appspot.com/bug?extid=fe18c63ce101f2b358bb
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=156040bd180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=149d2ead180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6cad68bf7532/disk-707081b6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1a27e5400778/vmlinux-707081b6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/67dfc53755d0/Image-707081b6.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/e198b7a8a7f2/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+fe18c63ce101f2b358bb@syzkaller.appspotmail.com

loop0: detected capacity change from 0 to 4096
ntfs: volume version 3.1.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6164 at fs/exec.c:940 do_open_execat+0x2bc/0x3bc
Modules linked in:
CPU: 0 PID: 6164 Comm: syz-executor379 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : do_open_execat+0x2bc/0x3bc
lr : do_open_execat+0x2b8/0x3bc fs/exec.c:939
sp : ffff8000977a7b60
x29: ffff8000977a7bd0 x28: 0000000000000000 x27: ffff0000d609da2c
x26: 00000000ffffff9c x25: dfff800000000000 x24: ffff700012ef4f6c
x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000
x20: fffffffffffffff3 x19: ffff0000d5ba0000 x18: ffff8000977a7100
x17: 000000000000c791 x16: ffff80008aca6dc0 x15: 0000000000000002
x14: 1ffff00012ef4f34 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700012ef4f36 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000d609da00 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000008000
Call trace:
 do_open_execat+0x2bc/0x3bc
 alloc_bprm+0x44/0x934 fs/exec.c:1541
 do_execveat_common+0x158/0x814 fs/exec.c:1935
 do_execveat fs/exec.c:2069 [inline]
 __do_sys_execveat fs/exec.c:2143 [inline]
 __se_sys_execveat fs/exec.c:2137 [inline]
 __arm64_sys_execveat+0xd0/0xec fs/exec.c:2137
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
irq event stamp: 24796
hardirqs last  enabled at (24795): [<ffff80008ae5ce28>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (24795): [<ffff80008ae5ce28>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (24796): [<ffff80008ad66988>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (24766): [<ffff80008002189c>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last  enabled at (24766): [<ffff80008002189c>] __do_softirq+0xac8/0xce4 kernel/softirq.c:582
softirqs last disabled at (24737): [<ffff80008002ab48>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---

---
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