From: Catalin Marinas catalin.marinas@arm.com
commit 736eedc974eaafbf4360e0ea85fc892cea72a223 upstream.
Commit 16decce22efa ("arm64: mte: Fix the stack frame size warning in mte_dump_tag_range()") moved the temporary tag storage array from the stack to slab but it also introduced an error in double freeing this object. Remove the in-loop freeing.
Fixes: 16decce22efa ("arm64: mte: Fix the stack frame size warning in mte_dump_tag_range()") Cc: stable@vger.kernel.org # 5.18.x Signed-off-by: Catalin Marinas catalin.marinas@arm.com Reported-by: Seth Jenkins sethjenkins@google.com Cc: Will Deacon will@kernel.org Link: https://lore.kernel.org/r/20221222181251.1345752-2-catalin.marinas@arm.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/elfcore.c | 1 - 1 file changed, 1 deletion(-)
--- a/arch/arm64/kernel/elfcore.c +++ b/arch/arm64/kernel/elfcore.c @@ -65,7 +65,6 @@ static int mte_dump_tag_range(struct cor mte_save_page_tags(page_address(page), tags); put_page(page); if (!dump_emit(cprm, tags, MTE_PAGE_TAG_STORAGE)) { - mte_free_tag_storage(tags); ret = 0; break; }