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Documentation/binfmt-misc.rst: Specify aux vector for "O" flag description

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Instead of replacing the file path in the argument vector, the file
descriptor is passed as AT_EXECFD in the auxilary vector. This appears
to have been the case at least since the git port, update the
documentation to reflect this.

Signed-off-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260418-binfmt_misc_doc_update-v1-1-c2e9601ab868@gmail.com>
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Charlie Jenkins 2026-04-18 17:08:49 -04:00 committed by Jonathan Corbet
parent 1cf4830de2
commit 49984b903a
1 changed files with 4 additions and 4 deletions
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Documentation/admin-guide/binfmt-misc.rst
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@ -68,10 +68,10 @@ Here is what the fields mean:
Legacy behavior of binfmt_misc is to pass the full path
of the binary to the interpreter as an argument. When this flag is
included, binfmt_misc will open the file for reading and pass its
descriptor as an argument, instead of the full path, thus allowing
the interpreter to execute non-readable binaries. This feature
should be used with care - the interpreter has to be trusted not to
emit the contents of the non-readable binary.
descriptor into the auxilary vector with the key "AT_EXECFD", thus
allowing the interpreter to execute non-readable binaries. This
feature should be used with care - the interpreter has to be trusted
not to emit the contents of the non-readable binary.
``C`` - credentials
Currently, the behavior of binfmt_misc is to calculate
the credentials and security token of the new process according to