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Commit 6e3ee990 authored by Gaosheng Cui's avatar Gaosheng Cui Committed by Paul Moore
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audit: fix possible null-pointer dereference in audit_filter_rules


Fix  possible null-pointer dereference in audit_filter_rules.

audit_filter_rules() error: we previously assumed 'ctx' could be null

Cc: stable@vger.kernel.org
Fixes: bf361231 ("audit: add saddr_fam filter field")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarGaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: default avatarPaul Moore <paul@paul-moore.com>
parent 67d69e9d
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...@@ -657,7 +657,7 @@ static int audit_filter_rules(struct task_struct *tsk, ...@@ -657,7 +657,7 @@ static int audit_filter_rules(struct task_struct *tsk,
result = audit_comparator(audit_loginuid_set(tsk), f->op, f->val); result = audit_comparator(audit_loginuid_set(tsk), f->op, f->val);
break; break;
case AUDIT_SADDR_FAM: case AUDIT_SADDR_FAM:
if (ctx->sockaddr) if (ctx && ctx->sockaddr)
result = audit_comparator(ctx->sockaddr->ss_family, result = audit_comparator(ctx->sockaddr->ss_family,
f->op, f->val); f->op, f->val);
break; break;
......
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