Tadeusz Struk
unread,Sep 18, 2022, 5:25:17 PM9/18/22Sign in to reply to author
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to syzbot+43438a...@syzkaller.appspotmail.com, syzkaller-a...@googlegroups.com, tadeus...@linaro.org
#syz test: git://
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index f48a23adbc35..f452fc03093c 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1268,6 +1268,7 @@ static int mon_bin_mmap(struct file *filp, struct vm_area_struct *vma)
{
/* don't do anything here: "fault" will set up page table entries */
vma->vm_ops = &mon_bin_vm_ops;
+ vma->vm_flags &= ~VM_WRITE;
vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_private_data = filp->private_data;
mon_bin_vma_open(vma);
--
2.37.3