Thomas Huth 2dbaf58bbe system/physmem: Silence warning from ubsan ...

When compiling QEMU with --enable-ubsan there is a undefined behavior
warning when running the bios-tables-test for example:

 .../system/physmem.c:3243:13: runtime error: applying non-zero offset 262144 to null pointer
    #0 0x55ac1df5fbc4 in address_space_write_rom_internal .../system/physmem.c:3243:13

The problem is that buf is indeed NULL if the function is e.g. called
with type == FLUSH_CACHE. Add a check to fix the issue.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250728172545.314178-1-thuth@redhat.com>

2025-09-09 09:35:55 +02:00

..

arch_init.c

system: Replace arch_type global by qemu_arch_available() helper

2025-03-11 20:03:26 +01:00

async-teardown.c

…

balloon.c

…

bootdevice.c

…

cpu-timers.c

include/exec: Split out icount.h

2025-04-23 14:08:44 -07:00

cpus.c

add cpu_test_interrupt()/cpu_set_interrupt() helpers and use them tree wide

2025-08-29 12:48:14 +02:00

datadir.c

pc-bios: Move device tree files in their own subdir

2025-04-25 17:09:58 +02:00

device_tree-stub.c

…

device_tree.c

…

dirtylimit.c

Merge tag 'pull-misc-2025-04-24' of https://repo.or.cz/qemu/armbru into staging

2025-04-24 13:44:57 -04:00

dma-helpers.c

include/exec: Split out icount.h

2025-04-23 14:08:44 -07:00

globals-target.c

system: Extract target-specific globals to their own compilation unit

2025-03-11 20:03:26 +01:00

globals.c

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ioport.c

include/system: Move exec/ioport.h to system/ioport.h

2025-04-23 14:08:21 -07:00

main.c

system/main: comment lock rationale

2025-05-28 08:07:59 +01:00

memory_ldst.c.inc

…

memory_mapping.c

include/system: Move exec/address-spaces.h to system/address-spaces.h

2025-04-23 14:08:21 -07:00

memory-internal.h

system/memory: Remove DEVICE_HOST_ENDIAN definition

2025-04-25 17:09:58 +02:00

memory.c

memory: reintroduce BQL-free fine-grained PIO/MMIO

2025-08-29 12:48:14 +02:00

meson.build

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

physmem.c

system/physmem: Silence warning from ubsan

2025-09-09 09:35:55 +02:00

qdev-monitor.c

system/qdev: Remove pointless NULL check in qdev_device_add_from_qdict

2025-07-10 16:18:43 +01:00

qemu-seccomp.c

…

qtest.c

qemu: Convert target_words_bigendian() to TargetInfo API

2025-07-15 02:56:39 -04:00

ram-block-attributes.c

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

rtc.c

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runstate-action.c

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runstate-hmp-cmds.c

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runstate.c

Merge tag 'accel-20250715' of https://github.com/philmd/qemu into staging

2025-07-16 07:13:40 -04:00

tpm-hmp-cmds.c

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tpm.c

tpm: "qemu -tpmdev help" should return success

2025-07-15 10:22:33 +04:00

trace-events

ram-block-attributes: Introduce RamBlockAttributes to manage RAMBlock with guest_memfd

2025-06-23 16:03:59 -04:00

trace.h

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vl.c

hw/nvram/fw_cfg: Remove legacy FW_CFG_ORDER_OVERRIDE

2025-05-30 09:52:08 +02:00

watchpoint.c

include/exec: Split out watchpoint.h

2025-04-23 14:08:36 -07:00