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authorMark Wielaard <[email protected]>2015-05-13 15:21:57 +0200
committerMark Wielaard <[email protected]>2015-05-18 15:48:04 +0200
commitc2297eab17b7dbb98021b51f063f71d1cdc7893a (patch)
treef3bc8cc95e7f807f6d38baed35b0e4b7f8009da1 /configure.ac
parent6d93c8c46d9b2b381c889e5f176451996845b055 (diff)
libelf: If e_phnum is zero then set e_phoff also to zero.
If phnum is zero make sure e_phoff is also zero and not some random value. That would cause trouble in update_file. This could happen when ELF_F_LAYOUT is set and the user copied over a ehdr from a bogus ELF file where the phdrs are unreadable. In that case trying to write out the new ELF image would crash trying to follow the bogus e_phdr value. Signed-off-by: Mark Wielaard <[email protected]>
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