`state_backend_format_dtb_pack()` passes a buffer containing state packed in flattened DTB format back to its caller via its `buf` parameter. It then frees the buffer before returning. This means the caller (`state_save()`) will be working on freed buffer contents before freeing the buffer a second time itself. Fix it by removing the spurious call to `free()`.
This should fix a bug reported by Norbert Wiedmann in <http://lists.infradead.org/pipermail/barebox/2017-April/029980.html>. Cc: Norbert Wiedmann <i...@n-wiedmann.de> Signed-off-by: Ian Abbott <abbo...@mev.co.uk> --- As reported by Norbert, there is an identical bug in the "dt-utils" package. --- common/state/backend_format_dtb.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/common/state/backend_format_dtb.c b/common/state/backend_format_dtb.c index 55fa1fc59..e88cda499 100644 --- a/common/state/backend_format_dtb.c +++ b/common/state/backend_format_dtb.c @@ -120,8 +120,6 @@ static int state_backend_format_dtb_pack(struct state_backend_format *format, of_delete_node(fdtb->root); fdtb->root = root; - free(fdt); - return 0; } -- 2.11.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox
