diff options
| author | Peter Hutterer <peter.hutterer@who-t.net> | 2011-05-03 13:21:02 +1000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2011-05-05 09:10:03 +1000 |
| commit | af65475b1f6b7209750220a74aaad9968d54aaf7 (patch) | |
| tree | 041d8cb057a173170b217206f4b7e3637abfcffc /src | |
| parent | 18177afd4fb3934d0a9083c599fb96701eec2ad9 (diff) | |
Allocate enough memory for raw events + extra data.
Necessary space was calculated, but not actually used to allocate memory. As
a result, valuator data would overwrite the allocated memory.
==4166== Invalid write of size 1
==4166== at 0x4C29F04: memcpy (mc_replace_strmem.c:497)
==4166== by 0x8F39180: ??? (in /usr/lib/libXi.so.6.1.0)
==4166== by 0x7433D48: _XCopyEventCookie (in /usr/lib/libX11.so.6.3.0)
==4166== by 0x7425166: XPeekEvent (in /usr/lib/libX11.so.6.3.0)
==4166== by 0x49C3E3: process_key (x11_be.c:1065)
==4166== by 0x49EA5C: event_key_release (x11_be.c:2201)
==4166== by 0x49DD6E: x11_be_process_events (x11_be.c:1892)
==4166== by 0x4A38F4: x11_be_main_loop (x11_be.c:4353)
==4166== by 0x4A39E1: x11_be_thread_main (x11_be.c:4385)
==4166== by 0x87549C9: start_thread (pthread_create.c:300)
==4166== by 0x8A516FC: clone (clone.S:112)
==4166== Address 0x168afe80 is 0 bytes after a block of size 96 alloc'd
==4166== at 0x4C284A8: malloc (vg_replace_malloc.c:236)
==4166== by 0x8F390BD: ??? (in /usr/lib/libXi.so.6.1.0)
==4166== by 0x7433D48: _XCopyEventCookie (in /usr/lib/libX11.so.6.3.0)
==4166== by 0x7425166: XPeekEvent (in /usr/lib/libX11.so.6.3.0)
==4166== by 0x49C3E3: process_key (x11_be.c:1065)
==4166== by 0x49EA5C: event_key_release (x11_be.c:2201)
==4166== by 0x49DD6E: x11_be_process_events (x11_be.c:1892)
==4166== by 0x4A38F4: x11_be_main_loop (x11_be.c:4353)
==4166== by 0x4A39E1: x11_be_thread_main (x11_be.c:4385)
==4166== by 0x87549C9: start_thread (pthread_create.c:300)
Reported-by: Roger Cruz <roger.cruz@virtualcomputer.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/XExtInt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/XExtInt.c b/src/XExtInt.c index d1451cc..134ccc6 100644 --- a/src/XExtInt.c +++ b/src/XExtInt.c @@ -1259,7 +1259,7 @@ copyRawEvent(XGenericEventCookie *cookie_in, len = sizeof(XIRawEvent) + in->valuators.mask_len; len += bits * sizeof(double) * 2; - ptr = cookie_out->data = malloc(sizeof(XIRawEvent)); + ptr = cookie_out->data = malloc(len); if (!ptr) return False; |