linux-kernel - Re: [PATCH v2 1/2] x86/xen: Fix memory leak in xen_smp_intr_init{

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Message-ID: <d09dc29e-0f68-3a48-5d5c-f2d39debe9ef@suse.com>
Date:   Thu, 24 Nov 2022 16:39:45 +0100
From:   Juergen Gross <jgross@...e.com>
To:     Xiu Jianfeng <xiujianfeng@...wei.com>, boris.ostrovsky@...cle.com,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, hpa@...or.com, jeremy@...p.org
Cc:     x86@...nel.org, xen-devel@...ts.xenproject.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] x86/xen: Fix memory leak in
 xen_smp_intr_init{_pv}()

On 23.11.22 16:58, Xiu Jianfeng wrote:
> These local variables @{resched|pmu|callfunc...}_name saves the new
> string allocated by kasprintf(), and when bind_{v}ipi_to_irqhandler()
> fails, it goes to the @fail tag, and calls xen_smp_intr_free{_pv}() to
> free resource, however the new string is not saved, which cause a memory
> leak issue. fix it.
> 
> Fixes: 9702785a747a ("i386: move xen")
> Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>

Reviewed-by: Juergen Gross <jgross@...e.com>


Juergen


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