ARM: 8958/1: rename missed uaccess .fixup section
commit5.4-rM2-2.2.x-imx-squashedf87b1c49bc
upstream. When the uaccess .fixup section was renamed to .text.fixup, one case was missed. Under ld.bfd, the orphaned section was moved close to .text (since they share the "ax" bits), so things would work normally on uaccess faults. Under ld.lld, the orphaned section was placed outside the .text section, making it unreachable. Link: https://github.com/ClangBuiltLinux/linux/issues/282 Link: https://bugs.chromium.org/p/chromium/issues/detail?id=1020633#c44 Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.1912032147340.17114@knanqh.ubzr Link: https://lore.kernel.org/lkml/202002071754.F5F073F1D@keescook/ Fixes:c4a84ae39b
("ARM: 8322/1: keep .text and .fixup regions closer together") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1a9e78628d
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@ -118,7 +118,7 @@ ENTRY(arm_copy_from_user)
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ENDPROC(arm_copy_from_user)
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.pushsection .fixup,"ax"
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.pushsection .text.fixup,"ax"
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.align 0
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copy_abort_preamble
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ldmfd sp!, {r1, r2, r3}
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