open: make RESOLVE_CACHED correctly test for O_TMPFILE

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commit a0fc452a5d upstream.

O_TMPFILE is actually __O_TMPFILE|O_DIRECTORY. This means that the old
fast-path check for RESOLVE_CACHED would reject all users passing
O_DIRECTORY with -EAGAIN, when in fact the intended test was to check
for __O_TMPFILE.

Cc: stable@vger.kernel.org # v5.12+
Fixes: 99668f6180 ("fs: expose LOOKUP_CACHED through openat2() RESOLVE_CACHED")
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Message-Id: <20230806-resolve_cached-o_tmpfile-v1-1-7ba16308465e@cyphar.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Aleksa Sarai 2023-08-06 02:11:58 +10:00 • committed by Greg Kroah-Hartman

parent 61f96da37d

commit 4f03b0471e

1 changed files with 1 additions and 1 deletions

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fs/open.c

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