linux-kernel - Re: [PATCH v3 1/2] riscv: Safely remove entries from relocation list

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Message-ID: <87bkbfzddr.fsf@igel.home>
Date:   Mon, 27 Nov 2023 11:42:08 +0100
From:   Andreas Schwab <schwab@...ux-m68k.org>
To:     Charlie Jenkins <charlie@...osinc.com>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>, Ron Economos <re@...z.net>,
        Samuel Holland <samuel.holland@...ive.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] riscv: Safely remove entries from relocation list

On Nov 22 2023, Charlie Jenkins wrote:

> @@ -683,17 +700,29 @@ int add_relocation_to_accumulate(struct module *me, int type, void *location,
>  
>  	if (!found) {
>  		rel_head = kmalloc(sizeof(*rel_head), GFP_KERNEL);
> +
> +		if (!rel_head)
> +			return -ENOMEM;
> +
>  		rel_head->rel_entry =
>  			kmalloc(sizeof(struct list_head), GFP_KERNEL);
> +
> +		if (!rel_head->rel_entry)
> +			return -ENOMEM;

This leaks rel_head on error.

-- 
Andreas Schwab, schwab@...ux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
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