[Mesa-dev] [Bug 31934] New: [gallium] Mapping empty buffer object causes SIGSEGV

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31934

           Summary: [gallium] Mapping empty buffer object causes SIGSEGV
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Mesa core
        AssignedTo: mesa-dev at lists.freedesktop.org
        ReportedBy: wixorpeek at gmail.com


The following code triggers SIGSEGV at
mesa/state_tracker/st_cb_bufferobjects.c:236, because st_obj->buffer is NULL.

#include <stdlib.h>

#define GL_GLEXT_PROTOTYPES
#include <GL/gl.h>
#include <GL/glut.h>

int main (int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGBA);
    glutInitWindowSize(512,512);
    glutCreateWindow("");

    GLuint id;
    glGenBuffersARB(1, &id);
    glBindBufferARB(GL_ARRAY_BUFFER_ARB, id);
    glBufferDataARB(GL_ARRAY_BUFFER_ARB, 0, NULL, GL_STATIC_DRAW);
    glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);

    glBindBufferARB(GL_ARRAY_BUFFER_ARB, id);
    glMapBuffer(GL_ARRAY_BUFFER_ARB, GL_READ_WRITE_ARB); /* CRASH! */
    glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);

    return 0;
}

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.