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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-09-10 22:44:03 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-09-16 01:51:56 +0200 |
| commit | 91344493b7da9487a8dbc1109d7486e51c8e5235 (patch) | |
| tree | 134a2ad5c7ecd0f304fa69118b66acc92544b60c /arch/arm/lib | |
| parent | arc: don't leak bits of kernel stack into coredump (diff) | |
| download | linux-91344493b7da9487a8dbc1109d7486e51c8e5235.tar.xz linux-91344493b7da9487a8dbc1109d7486e51c8e5235.zip | |
arm: don't zero in __copy_from_user_inatomic()/__copy_from_user()
adjust copy_from_user(), obviously
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/copy_from_user.S | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S index 1512bebfbf1b..7a4b06049001 100644 --- a/arch/arm/lib/copy_from_user.S +++ b/arch/arm/lib/copy_from_user.S @@ -98,12 +98,9 @@ ENDPROC(arm_copy_from_user) .pushsection .fixup,"ax" .align 0 copy_abort_preamble - ldmfd sp!, {r1, r2} - sub r3, r0, r1 - rsb r1, r3, r2 - str r1, [sp] - bl __memzero - ldr r0, [sp], #4 + ldmfd sp!, {r1, r2, r3} + sub r0, r0, r1 + rsb r0, r0, r2 copy_abort_end .popsection |