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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2024-03-07 19:20:55 +0900 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-03-11 17:06:06 +0000 |
| commit | 667909478b09f9f16b03b7e7b11f3c42e7bdcdf3 (patch) | |
| tree | 0b46d12693b10f3f085f42bf2992a037db99a44d /contrib | |
| parent | 2aa205f7c6339cb46d26473a0434a292fc3d32cf (diff) | |
| download | qemu-667909478b09f9f16b03b7e7b11f3c42e7bdcdf3.zip qemu-667909478b09f9f16b03b7e7b11f3c42e7bdcdf3.tar.gz qemu-667909478b09f9f16b03b7e7b11f3c42e7bdcdf3.tar.bz2 | |
contrib/elf2dmp: Ensure segment fits in file
This makes elf2dmp more robust against corrupted inputs.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Message-id: 20240307-elf2dmp-v4-12-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/elf2dmp/addrspace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/contrib/elf2dmp/addrspace.c b/contrib/elf2dmp/addrspace.c index e01860d..81295a1 100644 --- a/contrib/elf2dmp/addrspace.c +++ b/contrib/elf2dmp/addrspace.c @@ -88,11 +88,12 @@ void pa_space_create(struct pa_space *ps, QEMU_Elf *qemu_elf) ps->block = g_new(struct pa_block, ps->block_nr); for (i = 0; i < phdr_nr; i++) { - if (phdr[i].p_type == PT_LOAD) { + if (phdr[i].p_type == PT_LOAD && phdr[i].p_offset < qemu_elf->size) { ps->block[block_i] = (struct pa_block) { .addr = (uint8_t *)qemu_elf->map + phdr[i].p_offset, .paddr = phdr[i].p_paddr, - .size = phdr[i].p_filesz, + .size = MIN(phdr[i].p_filesz, + qemu_elf->size - phdr[i].p_offset), }; pa_block_align(&ps->block[block_i]); block_i = ps->block[block_i].size ? (block_i + 1) : block_i; |