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libsysprof-capture: check frame length overruns

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If we got a corrupted frame, just stop reading forward immediately.
This commit is contained in:
Christian Hergert
2020-02-23 14:26:13 -08:00
parent de0b7c295d
commit fd215a39a3
1 changed files with 3 additions and 0 deletions
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3
src/libsysprof-capture/sysprof-capture-reader.c
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@ -491,6 +491,9 @@ sysprof_capture_reader_read_basic (SysprofCaptureReader *self,
if (frame->type != type) if (frame->type != type)
return NULL; return NULL;
if (frame->len > (self->len - self->pos))
return NULL;
self->pos += frame->len; self->pos += frame->len;
return frame; return frame;