From a3034872cd90a6881ad4e10ca6d30e1215a99ada Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 29 Apr 2024 15:00:05 +0300 Subject: bpf: Switch to krealloc_array() Let the krealloc_array() copy the original data and check for a multiplication overflow. Signed-off-by: Andy Shevchenko Signed-off-by: Andrii Nakryiko Acked-by: Yonghong Song Link: https://lore.kernel.org/bpf/20240429120005.3539116-1-andriy.shevchenko@linux.intel.com --- kernel/bpf/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel') diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index a8ca6dd6e614..99b8b1c9a248 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -850,7 +850,7 @@ int bpf_jit_add_poke_descriptor(struct bpf_prog *prog, return -EINVAL; } - tab = krealloc(tab, size * sizeof(*poke), GFP_KERNEL); + tab = krealloc_array(tab, size, sizeof(*poke), GFP_KERNEL); if (!tab) return -ENOMEM; -- cgit v1.2.3