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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:43:32 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:43:32 +0000 |
| commit | f530fbb7a18f2794e4178dfb7cd07719b9586147 (patch) | |
| tree | 3f704b17427743e26452771cf7da2ed110346ddd /drivers/usb/mon | |
| parent | Adding debian version 4.19.260-1. (diff) | |
| download | linux-f530fbb7a18f2794e4178dfb7cd07719b9586147.tar.xz linux-f530fbb7a18f2794e4178dfb7cd07719b9586147.zip | |
Merging upstream version 4.19.269.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/mon')
| -rw-r--r-- | drivers/usb/mon/mon_bin.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index f48a23adb..094e812e9 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1268,6 +1268,11 @@ 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; + + if (vma->vm_flags & VM_WRITE) + return -EPERM; + + vma->vm_flags &= ~VM_MAYWRITE; vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; vma->vm_private_data = filp->private_data; mon_bin_vma_open(vma); |