Hi Yingliang,
On 2020/7/21 22:38, Yang Yingliang wrote:
(SNIP)
>
> SERIAL_PORT_DFNS is not defined on each arch, if it's not defined,
> serial8250_set_defaults() won't be called in serial8250_isa_init_ports(),
> so the p->serial_in pointer won't be initialized, and it leads a
> null-ptr-deref.
On Tue, Jul 21, 2020 at 08:18:11PM +0800, Yang Yingliang wrote:
>
> On 2020/7/21 19:54, Yang Yingliang wrote:
> >
> > On 2020/7/21 18:48, Greg KH wrote:
> > > On Tue, Jul 21, 2020 at 02:38:52PM +, Yang Yingliang wrote:
> > > > I got null-ptr-deref in serial8250_start_tx():
> > > >
> > > > [
On 2020/7/21 19:54, Yang Yingliang wrote:
On 2020/7/21 18:48, Greg KH wrote:
On Tue, Jul 21, 2020 at 02:38:52PM +, Yang Yingliang wrote:
I got null-ptr-deref in serial8250_start_tx():
[ 78.114630] Unable to handle kernel NULL pointer dereference at
virtual address
On 2020/7/21 18:48, Greg KH wrote:
On Tue, Jul 21, 2020 at 02:38:52PM +, Yang Yingliang wrote:
I got null-ptr-deref in serial8250_start_tx():
[ 78.114630] Unable to handle kernel NULL pointer dereference at virtual
address
[ 78.123778] Mem abort info:
[ 78.126560]
On Tue, Jul 21, 2020 at 02:38:52PM +, Yang Yingliang wrote:
> I got null-ptr-deref in serial8250_start_tx():
>
> [ 78.114630] Unable to handle kernel NULL pointer dereference at virtual
> address
> [ 78.123778] Mem abort info:
> [ 78.126560] ESR = 0x8607
> [
I got null-ptr-deref in serial8250_start_tx():
[ 78.114630] Unable to handle kernel NULL pointer dereference at virtual
address
[ 78.123778] Mem abort info:
[ 78.126560] ESR = 0x8607
[ 78.129603] EC = 0x21: IABT (current EL), IL = 32 bits
[ 78.134891] SET =
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