linux-kernel - Re: [PATCH] drivers/perf: arm_pmu_acpi: Release memory obtained by kasprintf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Fri, 22 Sep 2017 15:12:40 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Will Deacon <will.deacon@....com>
Cc:     Arvind Yadav <arvind.yadav.cs@...il.com>, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] drivers/perf: arm_pmu_acpi: Release memory obtained by
 kasprintf

On Fri, Sep 22, 2017 at 11:54:06AM +0100, Will Deacon wrote:
> On Wed, Sep 20, 2017 at 12:26:38PM +0530, Arvind Yadav wrote:
> > Free memory region, if arm_pmu_acpi_probe is not successful.
> > 
> > Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
> > ---
> >  drivers/perf/arm_pmu_acpi.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c
> > index 0a9b787..3303dd8 100644
> > --- a/drivers/perf/arm_pmu_acpi.c
> > +++ b/drivers/perf/arm_pmu_acpi.c
> > @@ -235,6 +235,7 @@ int arm_pmu_acpi_probe(armpmu_init_fn init_fn)
> >  		ret = armpmu_register(pmu);
> >  		if (ret) {
> >  			pr_warn("Failed to register PMU for CPU%d\n", cpu);
> > +			kfree(pmu->name);
> >  			return ret;
> >  		}
> >  	}
> 
> It's a bit weird that we bail out of the loop on the first failing CPU, but
> you've not changed that behaviour so your patch looks fine in isolation:
> 
> Acked-by: Will Deacon <will.deacon@....com>
> 
> Catalin: can you pick this up as a fix, please?

Applied. Thanks.

-- 
Catalin