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() occurs some error and returns a negetive value, the elfcorehdr_addr should be released with elfcorehdr_free(). We can fix by calling elfcorehdr_free() when parse_crash_elf_headers() fails. Signed-off-by: Jianglei Nie <niejianglei2021@xxxxxxx> --- fs/proc/vmcore.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c index 4eaeb645e759..7e028cd1e59d 100644 --- a/fs/proc/vmcore.c +++ b/fs/proc/vmcore.c @@ -1568,6 +1568,7 @@ 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; } -- 2.25.1