diff options
Diffstat (limited to 'drivers/misc/lkdtm/bugs.c')
| -rw-r--r-- | drivers/misc/lkdtm/bugs.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 48821f4c2b21..3c95600ab2f7 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -309,7 +309,7 @@ static void lkdtm_OVERFLOW_UNSIGNED(void) struct array_bounds_flex_array { int one; int two; - char data[1]; + char data[]; }; struct array_bounds { @@ -341,7 +341,7 @@ static void lkdtm_ARRAY_BOUNDS(void) * For the uninstrumented flex array member, also touch 1 byte * beyond to verify it is correctly uninstrumented. */ - for (i = 0; i < sizeof(not_checked->data) + 1; i++) + for (i = 0; i < 2; i++) not_checked->data[i] = 'A'; pr_info("Array access beyond bounds ...\n"); @@ -487,6 +487,7 @@ static void lkdtm_UNSET_SMEP(void) * the cr4 writing instruction. */ insn = (unsigned char *)native_write_cr4; + OPTIMIZER_HIDE_VAR(insn); for (i = 0; i < MOV_CR4_DEPTH; i++) { /* mov %rdi, %cr4 */ if (insn[i] == 0x0f && insn[i+1] == 0x22 && insn[i+2] == 0xe7) |