diff options
| author | Brian Gerst <brgerst@gmail.com> | 2020-11-30 17:30:59 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-17 14:16:59 +0100 |
| commit | 797335659e58d7eb0156254ea123be6d99aa761a (patch) | |
| tree | 6b22131d3d5e3f97c02f64d282a463da3a4982f1 /arch/Kconfig | |
| parent | 797c128d3c7d95ecc6a2113aae5de109736fba10 (diff) | |
fanotify: Fix sys_fanotify_mark() on native x86-32
commit 2ca408d9c749c32288bc28725f9f12ba30299e8f upstream.
Commit
121b32a58a3a ("x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments")
converted native x86-32 which take 64-bit arguments to use the
compat handlers to allow conversion to passing args via pt_regs.
sys_fanotify_mark() was however missed, as it has a general compat
handler. Add a config option that will use the syscall wrapper that
takes the split args for native 32-bit.
[ bp: Fix typo in Kconfig help text. ]
Fixes: 121b32a58a3a ("x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments")
Reported-by: Paweł Jasiak <pawel@jasiak.xyz>
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20201130223059.101286-1-brgerst@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index ddd4641446bd..69fe7133c765 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1053,6 +1053,12 @@ config ARCH_WANT_LD_ORPHAN_WARN by the linker, since the locations of such sections can change between linker versions. +config ARCH_SPLIT_ARG64 + bool + help + If a 32-bit architecture requires 64-bit arguments to be split into + pairs of 32-bit arguments, select this option. + source "kernel/gcov/Kconfig" source "scripts/gcc-plugins/Kconfig" |