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Ben Hutchings authored
irq_cpu_rmap_release() calls cpu_rmap_put(), which may free the rmap. So we need to clear the pointer to our glue structure in rmap before doing that, not after. Fixes: 4e0473f1 ("lib: cpu_rmap: Avoid use after free on rmap->obj array entries") Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Reviewed-by:
Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/ZHo0vwquhOy3FaXc@decadent.org.uk Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
Ben Hutchings authoredirq_cpu_rmap_release() calls cpu_rmap_put(), which may free the rmap. So we need to clear the pointer to our glue structure in rmap before doing that, not after. Fixes: 4e0473f1 ("lib: cpu_rmap: Avoid use after free on rmap->obj array entries") Signed-off-by:
cpu_rmap.c 8.19 KiB