diff options
| author | Jan Beulich <[email protected]> | 2013-01-30 07:55:53 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2013-01-31 10:36:01 +0100 |
| commit | 40a1ef95da85843696fc3ebe5fce39b0db32669f (patch) | |
| tree | e78e1ac0a682f60a1a4fccf02fa2d4addc54987c | |
| parent | e0094244e41c4d0c7ad69920681972fc45d8ce34 (diff) | |
x86-64: Replace left over sti/cli in ia32 audit exit code
For some reason they didn't get replaced so far by their
paravirt equivalents, resulting in code to be run with
interrupts disabled that doesn't expect so (causing, in the
observed case, a BUG_ON() to trigger) when syscall auditing is
enabled.
David (Cc-ed) came up with an identical fix, so likely this can
be taken to count as an ack from him.
Reported-by: Peter Moody <[email protected]>
Signed-off-by: Jan Beulich <[email protected]>
Cc: David Vrabel <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Cc: [email protected]
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: David Vrabel <[email protected]>
Tested-by: Peter Moody <[email protected]>
| -rw-r--r-- | arch/x86/ia32/ia32entry.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 102ff7cb3e41..142c4ceff112 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -207,7 +207,7 @@ sysexit_from_sys_call: testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) jnz ia32_ret_from_sys_call TRACE_IRQS_ON - sti + ENABLE_INTERRUPTS(CLBR_NONE) movl %eax,%esi /* second arg, syscall return value */ cmpl $-MAX_ERRNO,%eax /* is it an error ? */ jbe 1f @@ -217,7 +217,7 @@ sysexit_from_sys_call: call __audit_syscall_exit movq RAX-ARGOFFSET(%rsp),%rax /* reload syscall return value */ movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi - cli + DISABLE_INTERRUPTS(CLBR_NONE) TRACE_IRQS_OFF testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET) jz \exit |