The driver vtables are read-only structures. This patch declares them as
'const' allowing the compiler to (optionally) put them in the RELRO
section. RELRO pages may be marked as read-only by the linker after
the relocations have been done ensuring that they aren't inadvertently
or maliciously altered at runtime.
This patch fixes segmentation fault when the network registration
watch is called without being initialized. CIEV GAtChat callback can
be called before ofono_netreg_register().
==15101== Invalid read of size 8
==15101== at 0x492B56: ofono_netreg_register (network.c:2073)
==15101== by 0x47245E: hfp_netreg_probe (network-registration.c:311)
==15101== by 0x492A8D: ofono_netreg_create (network.c:1881)
==15101== by 0x4849D5: hfp_pre_sim (hfp_hf_bluez5.c:288)
==15101== by 0x48C486: ofono_modem_set_powered (modem.c:1194)
==15101== by 0x484E9D: slc_established (hfp_hf_bluez5.c:85)
==15101== by 0x4702AD: chld_cb (slc.c:147)
==15101== by 0x440457: at_chat_finish_command (gatchat.c:461)
==15101== by 0x44109F: new_bytes (gatchat.c:532)
==15101== by 0x4433B7: received_data (gatio.c:122)
==15101== by 0x3CBAA47824: g_main_context_dispatch (gmain.c:2539)
==15101== by 0x3CBAA47B57: g_main_context_iterate.isra.23
(gmain.c:3146)
==15101== Address 0x18 is not stack'd, malloc'd or (recently) free'd
This patch was generated by the following semantic patch
(http://coccinelle.lip6.fr/)
// <smpl>
@fix disable is_null,isnt_null1@
expression *E;
@@
- !E
+ E == NULL
// </smpl>
This driver handles phone informations about registration status, signal
strength and roaming status listening +CIEV commands. It also gets the
Network Operator name with +COPS commands.
Jonas Bonn
Denis Kenzior
Claudio Takahasi
Mikel Astiz
Marcel Holtmann
Frédéric Dalleau
Frédéric Danis
Jeevaka Badrappan
Lucas De Marchi
Zhenhua Zhang
Gustavo F. Padovan