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Re: [PATCH v2 1/2] x86/xen: Fix memory leak in xen_smp_intr_init{_pv}()
- To: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>, boris.ostrovsky@xxxxxxxxxx, tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, bp@xxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, hpa@xxxxxxxxx, jeremy@xxxxxxxx
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Thu, 24 Nov 2022 16:39:45 +0100
- Cc: x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- Delivery-date: Thu, 24 Nov 2022 15:39:50 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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@xxxxxxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Juergen
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