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powerpc/crash: Fix possible memory leak in update_crash_elfcorehdr()

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In get_crash_memory_ranges(), if crash_exclude_mem_range() failed
after realloc_mem_ranges() has successfully allocated the cmem
memory, it just returns an error but leaves cmem pointing to
the allocated memory, nor is it freed in the caller
update_crash_elfcorehdr(), which cause a memory leak, goto out
to free the cmem.

Fixes: 849599b702 ("powerpc/crash: add crash memory hotplug support")
Reviewed-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260729012948.2797865-2-ruanjinjie@huawei.com
This commit is contained in:
Jinjie Ruan
2026-07-29 09:29:46 +08:00
committed by Madhavan Srinivasan
parent b9254d222d
commit 4cc4b58600
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kexec/crash.c
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@@ -502,7 +502,7 @@ static void update_crash_elfcorehdr(struct kimage *image, struct memory_notify *
ret = get_crash_memory_ranges(&cmem);
if (ret) {
pr_err("Failed to get crash mem range\n");
return;
goto out;
}
/*