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authorLinus Torvalds <torvalds@linux-foundation.org>2016-07-30 03:54:17 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-30 03:54:17 +0300
commit797cee982eef9195736afc5e7f3b8f613c41d19a (patch)
tree2baf2ada982bb1c2cbe058b1378e38272cbda5d3 /arch
parent7a1e8b80fb1e8ead4cec15d1fc494ed290e4d2e9 (diff)
parent43761473c254b45883a64441dd0bc85a42f3645c (diff)
downloadlinux-797cee982eef9195736afc5e7f3b8f613c41d19a.tar.xz
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
Pull audit updates from Paul Moore: "Six audit patches for 4.8. There are a couple of style and minor whitespace tweaks for the logs, as well as a minor fixup to catch errors on user filter rules, however the major improvements are a fix to the s390 syscall argument masking code (reviewed by the nice s390 folks), some consolidation around the exclude filtering (less code, always a win), and a double-fetch fix for recording the execve arguments" * 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit: audit: fix a double fetch in audit_log_single_execve_arg() audit: fix whitespace in CWD record audit: add fields to exclude filter by reusing user filter s390: ensure that syscall arguments are properly masked on s390 audit: fix some horrible switch statement style crimes audit: fixup: log on errors from filter user rules
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/ptrace.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index cea17010448f..9336e824e2db 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -821,6 +821,8 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
{
+ unsigned long mask = -1UL;
+
/*
* The sysc_tracesys code in entry.S stored the system
* call number to gprs[2].
@@ -846,9 +848,12 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_sys_enter(regs, regs->gprs[2]);
- audit_syscall_entry(regs->gprs[2], regs->orig_gpr2,
- regs->gprs[3], regs->gprs[4],
- regs->gprs[5]);
+ if (is_compat_task())
+ mask = 0xffffffff;
+
+ audit_syscall_entry(regs->gprs[2], regs->orig_gpr2 & mask,
+ regs->gprs[3] &mask, regs->gprs[4] &mask,
+ regs->gprs[5] &mask);
return regs->gprs[2];
}