diff options
| -rw-r--r-- | arch/arm64/lib/clear_user.S | 2 | ||||
| -rw-r--r-- | arch/arm64/lib/copy_from_user.S | 2 | ||||
| -rw-r--r-- | arch/arm64/lib/copy_in_user.S | 2 | ||||
| -rw-r--r-- | arch/arm64/lib/copy_to_user.S | 2 |
4 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/lib/clear_user.S b/arch/arm64/lib/clear_user.S index a9723c71c52b..8d330c30a6f9 100644 --- a/arch/arm64/lib/clear_user.S +++ b/arch/arm64/lib/clear_user.S @@ -62,5 +62,7 @@ ENDPROC(__clear_user) .section .fixup,"ax" .align 2 9: mov x0, x2 // return the original size +ALTERNATIVE("nop", __stringify(SET_PSTATE_PAN(1)), ARM64_HAS_PAN, \ + CONFIG_ARM64_PAN) ret .previous diff --git a/arch/arm64/lib/copy_from_user.S b/arch/arm64/lib/copy_from_user.S index 4699cd74f87e..b8c95ef13229 100644 --- a/arch/arm64/lib/copy_from_user.S +++ b/arch/arm64/lib/copy_from_user.S @@ -85,5 +85,7 @@ ENDPROC(__copy_from_user) strb wzr, [dst], #1 // zero remaining buffer space cmp dst, end b.lo 9999b +ALTERNATIVE("nop", __stringify(SET_PSTATE_PAN(1)), ARM64_HAS_PAN, \ + CONFIG_ARM64_PAN) ret .previous diff --git a/arch/arm64/lib/copy_in_user.S b/arch/arm64/lib/copy_in_user.S index 81c8fc93c100..233703c84bcd 100644 --- a/arch/arm64/lib/copy_in_user.S +++ b/arch/arm64/lib/copy_in_user.S @@ -81,5 +81,7 @@ ENDPROC(__copy_in_user) .section .fixup,"ax" .align 2 9998: sub x0, end, dst // bytes not copied +ALTERNATIVE("nop", __stringify(SET_PSTATE_PAN(1)), ARM64_HAS_PAN, \ + CONFIG_ARM64_PAN) ret .previous diff --git a/arch/arm64/lib/copy_to_user.S b/arch/arm64/lib/copy_to_user.S index 7512bbbc07ac..62b179408b23 100644 --- a/arch/arm64/lib/copy_to_user.S +++ b/arch/arm64/lib/copy_to_user.S @@ -79,5 +79,7 @@ ENDPROC(__copy_to_user) .section .fixup,"ax" .align 2 9998: sub x0, end, dst // bytes not copied +ALTERNATIVE("nop", __stringify(SET_PSTATE_PAN(1)), ARM64_HAS_PAN, \ + CONFIG_ARM64_PAN) ret .previous |