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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-02 08:47:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-02 08:47:35 +0100 |
| commit | 48a3d90adafc9ed92d19c93d011f17ec9001cc34 (patch) | |
| tree | 868f62da2306ddabd6eca57eb6ea2a18ac18995f /drivers/tty/vt/vt_ioctl.c | |
| parent | 3f7566f4947834db9b36aeb8b308e91448ba74fc (diff) | |
| parent | 3cea11cd5e3b00d91caf0b4730194039b45c5891 (diff) | |
Merge 5.10-rc2 into char-misc-next
We need the fixes/changes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/vt/vt_ioctl.c')
| -rw-r--r-- | drivers/tty/vt/vt_ioctl.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index 0a33b8ababe3..2321775ef098 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -549,7 +549,7 @@ static int vt_io_fontreset(struct console_font_op *op) } static inline int do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud, - struct vc_data *vc) + bool perm, struct vc_data *vc) { struct unimapdesc tmp; @@ -557,9 +557,11 @@ static inline int do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud, return -EFAULT; switch (cmd) { case PIO_UNIMAP: + if (!perm) + return -EPERM; return con_set_unimap(vc, tmp.entry_ct, tmp.entries); case GIO_UNIMAP: - if (fg_console != vc->vc_num) + if (!perm && fg_console != vc->vc_num) return -EPERM; return con_get_unimap(vc, tmp.entry_ct, &(user_ud->entry_ct), tmp.entries); @@ -639,10 +641,7 @@ static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up, case PIO_UNIMAP: case GIO_UNIMAP: - if (!perm) - return -EPERM; - - return do_unimap_ioctl(cmd, up, vc); + return do_unimap_ioctl(cmd, up, perm, vc); default: return -ENOIOCTLCMD; |