Re: [PATCH v6 05/14] arm64: kexec_file: Fix elf_headers memory leak in retry loop
flat view
From: sashiko-bot@kernel.org
Date: 2026-09-21 09:15:16
Also in:
driver-core, kexec, lkml, loongarch
If load_other_segments() fails after image->elf_headers is assigned,
the memory lifecycle is safely managed by the global kimage object
and will be freed in arch_kimage_file_post_load_cleanup().
However, during a retry loop in image_load(), a subsequent iteration
will allocate a new buffer and overwrite image->elf_headers. This
permanently leaks the stale memory from the previous iteration before
the global cleanup can track it.
Fix this by explicitly freeing the stale `image->elf_headers` buffer
before assigning the newly allocated headers.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Huth <redacted>
Cc: Breno Leitao <leitao@debian.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yeoreum Yun <redacted>
Cc: Baoquan He <redacted>
Cc: stable@vger.kernel.org
Fixes: 108aa503657e ("arm64: kexec_file: try more regions if loading segments fails")
Signed-off-by: Jinjie Ruan <redacted>Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review · https://sashiko.dev/#/patchset/20260921090450.807575-1-ruanjinjie@huawei.com?part=5