Misc HW patches for 2025-10-28

[PULL 16/23] hw/core/loader: improve error handling in image loading functions

Philippe Mathieu-Daudé posted 23 patches 2 weeks, 3 days ago

Download mbox

Maintainers: "Gonglei (Arei)" <arei.gonglei@huawei.com>, Zhenwei Pi <pizhenwei@bytedance.com>, Richard Henderson <richard.henderson@linaro.org>, Peter Maydell <peter.maydell@linaro.org>, Antony Pavlov <antonynpavlov@gmail.com>, Rob Herring <robh@kernel.org>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Alberto Garcia <berto@igalia.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony PERARD <anthony@xenproject.org>, Paul Durrant <paul@xen.org>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Alistair Francis <alistair@alistair23.me>, "Alex Bennée" <alex.bennee@linaro.org>, "Daniel P. Berrangé" <berrange@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Helge Deller <deller@gmx.de>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Corey Minyard <minyard@acm.org>, Song Gao <gaosong@loongson.cn>, Bibo Mao <maobibo@loongson.cn>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Thomas Huth <huth@tuxfamily.org>, Laurent Vivier <laurent@vivier.eu>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <arikalo@gmail.com>, Huacai Chen <chenhuacai@kernel.org>, "Hervé Poussineau" <hpoussin@reactos.org>, Aurelien Jarno <aurelien@aurel32.net>, Bernhard Beschow <shentey@gmail.com>, Jason Wang <jasowang@redhat.com>, Stafford Horne <shorne@gmail.com>, BALATON Zoltan <balaton@eik.bme.hu>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Nicholas Piggin <npiggin@gmail.com>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Aditya Gupta <adityag@linux.ibm.com>, Glenn Miles <milesg@linux.ibm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Yoshinori Sato <yoshinori.sato@nifty.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Jared Rossi <jrossi@linux.ibm.com>, Zhuoying Cai <zycai@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Magnus Damm <magnus.damm@gmail.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, "Clément Chigot" <chigot@adacore.com>, Frederic Konrad <konrad.frederic@yahoo.fr>, Artyom Tarasenko <atar4qemu@gmail.com>, Max Filippov <jcmvbkbc@gmail.com>, Yi Liu <yi.l.liu@intel.com>, "Clément Mathieu--Drif" <clement.mathieu--drif@eviden.com>, Tyrone Ting <kfting@nuvoton.com>, Hao Wu <wuhaotsh@google.com>, Fam Zheng <fam@euphon.net>, Gerd Hoffmann <kraxel@redhat.com>, Alex Williamson <alex@shazbot.org>, "Cédric Le Goater" <clg@redhat.com>, Amit Shah <amit@kernel.org>, Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>, Pavel Pisa <pisa@cmp.felk.cvut.cz>, Francisco Iglesias <francisco.iglesias@amd.com>, Vikram Garhwal <vikram.garhwal@bytedance.com>, David Gibson <david@gibson.dropbear.id.au>

Expand all Fold all

[PULL 16/23] hw/core/loader: improve error handling in image loading functions

Posted by Philippe Mathieu-Daudé 2 weeks, 3 days ago

From: Vishal Chourasia <vishalc@linux.ibm.com>

Add error checking for lseek() failure and provide better error
messages when image loading fails, including filenames and addresses.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Aditya Gupta <adityag@linux.ibm.com>
Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
Message-ID: <20251024130556.1942835-8-vishalc@linux.ibm.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/core/loader.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/hw/core/loader.c b/hw/core/loader.c
index 7aca4989ef0..d7c11c18f11 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -79,6 +79,10 @@ int64_t get_image_size(const char *filename, Error **errp)
     if (fd < 0)
         return -1;
     size = lseek(fd, 0, SEEK_END);
+    if (size < 0) {
+        error_setg_errno(errp, errno, "lseek failure: %s", filename);
+        return -1;
+    }
     close(fd);
     return size;
 }
@@ -132,11 +136,20 @@ ssize_t load_image_targphys_as(const char *filename,
     ssize_t size;
 
     size = get_image_size(filename, errp);
-    if (size < 0 || size > max_sz) {
+    if (size < 0) {
         return -1;
     }
+
+    if (size > max_sz) {
+        error_setg(errp, "%s exceeds maximum image size (%s)",
+                   filename, size_to_str(max_sz));
+        return -1;
+    }
+
     if (size > 0) {
         if (rom_add_file_fixed_as(filename, addr, -1, as) < 0) {
+            error_setg(errp, "could not load '%s' at %" HWADDR_PRIx,
+                       filename, addr);
             return -1;
         }
     }
-- 
2.51.0