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From 99d2a5a4517216a63cfdeef3ee30656938b3a98e Mon Sep 17 00:00:00 2001
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From: Jeff Layton <jlayton@samba.org>
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Date: Tue, 8 Oct 2013 21:07:24 -0400
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Subject: [PATCH] get/setcifsacl: fix bad bit-shifts
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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A Coverity scan turned up this warning:
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1. cifs-utils-6.2/setcifsacl.c:578:result_independent_of_operands – "(x & 0xff0000000000ULL) >> 48" is 0 regardless of the values of its operands. This occurs as the operand of assignment.
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...which is entirely true. That shift should be 40 bits, not 48. Also
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fix a similar bug in getcifsacl.c.
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Signed-off-by: Jeff Layton <jlayton@samba.org>
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---
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getcifsacl.c | 2 +-
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setcifsacl.c | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/getcifsacl.c b/getcifsacl.c
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index b8998ef..33f36b4 100644
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--- a/getcifsacl.c
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+++ b/getcifsacl.c
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@@ -198,7 +198,7 @@ print_sid_raw:
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id_auth_val += (unsigned long long)csid->authority[3] << 16;
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id_auth_val += (unsigned long long)csid->authority[2] << 24;
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id_auth_val += (unsigned long long)csid->authority[1] << 32;
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- id_auth_val += (unsigned long long)csid->authority[0] << 48;
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+ id_auth_val += (unsigned long long)csid->authority[0] << 40;
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/*
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* MS-DTYP states that if the authority is >= 2^32, then it should be
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diff --git a/setcifsacl.c b/setcifsacl.c
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index ce708eb..7eeeaa6 100644
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--- a/setcifsacl.c
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+++ b/setcifsacl.c
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@@ -575,7 +575,7 @@ raw_str_to_sid(const char *str, struct cifs_sid *csid)
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csid->authority[3] = (x & 0x000000ff0000ULL) >> 16;
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csid->authority[2] = (x & 0x0000ff000000ULL) >> 24;
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csid->authority[1] = (x & 0x00ff00000000ULL) >> 32;
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- csid->authority[0] = (x & 0xff0000000000ULL) >> 48;
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+ csid->authority[0] = (x & 0xff0000000000ULL) >> 40;
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/* now read the the subauthorities and store as __le32 vals */
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p = q + 1;
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--
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1.8.3.1
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