From: Jianglei Nie <niejianglei2021@xxxxxxx>
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.
Signed-off-by: Jianglei Nie <niejianglei2021@xxxxxxx>
Acked-by: Baoquan He <bhe@xxxxxxxxxx>
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
---
fs/proc/vmcore.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index f2aa86c421f2..74747571d58e 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -1567,6 +1567,7 @@ 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;
}
--
2.34.1
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