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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) From: Philippe Mathieu-Daud=C3=A9 Fix an unlikely memory leak in load_elf_image(). Fixes: bf858897b7 ("linux-user: Re-use load_elf_image for the main binary.") Signed-off-by: Philippe Mathieu-Daud=C3=A9 Message-Id: <20201003174944.1972444-1-f4bug@amsat.org> Signed-off-by: Richard Henderson --- linux-user/elfload.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index f6022fd704..1a3150df7c 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2584,13 +2584,13 @@ static void load_elf_image(const char *image_name, = int image_fd, info->brk =3D vaddr_em; } } else if (eppnt->p_type =3D=3D PT_INTERP && pinterp_name) { - char *interp_name; + g_autofree char *interp_name =3D NULL; =20 if (*pinterp_name) { errmsg =3D "Multiple PT_INTERP entries"; goto exit_errmsg; } - interp_name =3D malloc(eppnt->p_filesz); + interp_name =3D g_malloc(eppnt->p_filesz); if (!interp_name) { goto exit_perror; } @@ -2609,7 +2609,7 @@ static void load_elf_image(const char *image_name, in= t image_fd, errmsg =3D "Invalid PT_INTERP entry"; goto exit_errmsg; } - *pinterp_name =3D interp_name; + *pinterp_name =3D g_steal_pointer(&interp_name); #ifdef TARGET_MIPS } else if (eppnt->p_type =3D=3D PT_MIPS_ABIFLAGS) { Mips_elf_abiflags_v0 abiflags; @@ -2961,7 +2961,7 @@ int load_elf_binary(struct linux_binprm *bprm, struct= image_info *info) if (elf_interpreter) { info->load_bias =3D interp_info.load_bias; info->entry =3D interp_info.entry; - free(elf_interpreter); + g_free(elf_interpreter); } =20 #ifdef USE_ELF_CORE_DUMP --=20 2.25.1