udf: validate vat20->lengthHeader and VAT inode size in udf_load_vat() - #2623
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In udf_load_vat() (fs/udf/super.c), validate that vat20->lengthHeader is at least sizeof(struct virtualAllocationTable20) and does not exceed the mapped buffer or VAT inode size so computing the VAT table pointer and entry count cannot underflow or read out of bounds. Fixes: 1da177e ("Linux-2.6.12-rc2") Assisted-by: LLM Signed-off-by: Hui Peng <benquike@gmail.com>
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Series: https://patchwork.kernel.org/project/linux-fsdevel/list/?series=1169469
Submitter: Hui Peng
Version: 1
Patches: 1/1
Message-ID:
<20260919222600.3793513-1-benquike@gmail.com>Base: vfs.base.ci
Lore: https://lore.kernel.org/linux-fsdevel/20260919222600.3793513-1-benquike@gmail.com
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