From: Jianglei Nie <niejianglei2021@xxxxxxx> [ Upstream commit 12b9d301ff73122aebd78548fa4c04ca69ed78fe ] Patch series "Some minor cleanup patches resent". The first three patches trivial clean up patches. And for the patch "kexec: replace crash_mem_range with range", I got a ibm-p9wr ppc64le system to test, it works well. This patch (of 4): elfcorehdr_alloc() allocates a memory chunk for elfcorehdr_addr with kzalloc(). If is_vmcore_usable() returns false, elfcorehdr_addr is a predefined value. If parse_crash_elf_headers() gets some error and returns a negetive value, the elfcorehdr_addr should be released with elfcorehdr_free(). Fix it by calling elfcorehdr_free() when parse_crash_elf_headers() fails. Link: https://lkml.kernel.org/r/20220929042936.22012-1-bhe@xxxxxxxxxx Link: https://lkml.kernel.org/r/20220929042936.22012-2-bhe@xxxxxxxxxx Signed-off-by: Jianglei Nie <niejianglei2021@xxxxxxx> Signed-off-by: Baoquan He <bhe@xxxxxxxxxx> Acked-by: Baoquan He <bhe@xxxxxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Chen Lifu <chenlifu@xxxxxxxxxx> Cc: "Eric W . Biederman" <ebiederm@xxxxxxxxxxxx> Cc: Li Chen <lchen@xxxxxxxxxxxxx> Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Petr Mladek <pmladek@xxxxxxxx> Cc: Russell King <linux@xxxxxxxxxxxxxxx> Cc: ye xingchen <ye.xingchen@xxxxxxxxxx> Cc: Zeal Robot <zealci@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/proc/vmcore.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index e5730986758f..d3286d8634d9 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -1550,6 +1550,7 @@ static int __init vmcore_init(void) return rc; rc = parse_crash_elf_headers(); if (rc) { + elfcorehdr_free(elfcorehdr_addr); pr_warn("Kdump: vmcore not initialized\n"); return rc; } -- 2.35.1
