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Note: this bug was taken from Commit-ID: 26c2d2b39128adba276d140eefa2745591b88536
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and corrected for white space differences between the RHEL-7.1 3.10.0-229 upstream
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kernel.
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---
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diff -uNrp a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
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--- a/arch/x86/kernel/entry_32.S 2015-05-17 07:39:14.371778177 -0500
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+++ b/arch/x86/kernel/entry_32.S 2015-05-17 07:36:13.654610869 -0500
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@@ -457,15 +457,14 @@ sysenter_exit:
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sysenter_audit:
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testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%ebp)
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jnz syscall_trace_entry
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- addl $4,%esp
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- CFI_ADJUST_CFA_OFFSET -4
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- movl %esi,4(%esp) /* 5th arg: 4th syscall arg */
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- movl %edx,(%esp) /* 4th arg: 3rd syscall arg */
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- /* %ecx already in %ecx 3rd arg: 2nd syscall arg */
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- movl %ebx,%edx /* 2nd arg: 1st syscall arg */
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- /* %eax already in %eax 1st arg: syscall number */
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+ /* movl PT_EAX(%esp), %eax already set, syscall number: 1st arg to audit */
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+ movl PT_EBX(%esp), %edx /* ebx/a0: 2nd arg to audit */
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+ /* movl PT_ECX(%esp), %ecx already set, a1: 3nd arg to audit */
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+ pushl_cfi PT_ESI(%esp) /* a3: 5th arg */
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+ pushl_cfi PT_EDX+4(%esp) /* a2: 4th arg */
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call __audit_syscall_entry
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- pushl_cfi %ebx
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+ popl_cfi %ecx /* get that remapped edx off the stack */
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+ popl_cfi %ecx /* get that remapped esi off the stack */
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movl PT_EAX(%esp),%eax /* reload syscall number */
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jmp sysenter_do_call
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---
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