From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Date: Tue, 10 Mar 2020 12:38:37 +0000 Subject: [PATCH 4.4 24/72] MIPS: VPE: Fix a double free and a memory leak in release_vpe() Message-Id: <20200310123607.860475256@linuxfoundation.org> List-Id: References: <20200310123601.053680753@linuxfoundation.org> In-Reply-To: <20200310123601.053680753@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Paul Burton , ralf@linux-mips.org, linux-mips@vger.kernel.org, kernel-janitors@vger.kernel.org From: Christophe JAILLET commit bef8e2dfceed6daeb6ca3e8d33f9c9d43b926580 upstream. Pointer on the memory allocated by 'alloc_progmem()' is stored in 'v->load_addr'. So this is this memory that should be freed by 'release_progmem()'. 'release_progmem()' is only a call to 'kfree()'. With the current code, there is both a double free and a memory leak. Fix it by passing the correct pointer to 'release_progmem()'. Fixes: e01402b115ccc ("More AP / SP bits for the 34K, the Malta bits and things. Still wants") Signed-off-by: Christophe JAILLET Signed-off-by: Paul Burton Cc: ralf@linux-mips.org Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: kernel-janitors@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- arch/mips/kernel/vpe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -134,7 +134,7 @@ void release_vpe(struct vpe *v) { list_del(&v->list); if (v->load_addr) - release_progmem(v); + release_progmem(v->load_addr); kfree(v); }