From 78996eee79ebdfe8b6f0e54cb6dcc792d5129291 Mon Sep 17 00:00:00 2001 From: Charlie Jenkins Date: Thu, 4 Jan 2024 11:42:47 -0800 Subject: riscv: Fix module loading free order Reverse order of kfree calls to resolve use-after-free error. Signed-off-by: Charlie Jenkins Fixes: d8792a5734b0 ("riscv: Safely remove entries from relocation list") Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202312132019.iYGTwW0L-lkp@intel.com/ Reported-by: kernel test robot Reported-by: Julia Lawall Closes: https://lore.kernel.org/r/202312120044.wTI1Uyaa-lkp@intel.com/ Reviewed-by: Dan Carpenter Link: https://lore.kernel.org/r/20240104-module_loading_fix-v3-1-a71f8de6ce0f@rivosinc.com Signed-off-by: Palmer Dabbelt --- arch/riscv/kernel/module.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/riscv/kernel/module.c') diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index aac019ed63b1..21c7a773a8ef 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -723,8 +723,8 @@ static int add_relocation_to_accumulate(struct module *me, int type, if (!bucket) { kfree(entry); - kfree(rel_head); kfree(rel_head->rel_entry); + kfree(rel_head); return -ENOMEM; } -- cgit v1.2.3