[PATCH 1/2] audit: add support for the openat2 syscall

The openat2(2) syscall was added in kernel v5.6 with commit fddb5d430ad9 ("open: introduce openat2(2) syscall") Add the openat2(2) syscall to the audit syscall classifier. See the github issue https://github.com/linux-audit/audit-kernel/issues/67 Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com&gt; --- arch/alpha/kernel/audit.c | 2 ++ arch/ia64/kernel/audit.c | 2 ++ arch/parisc/kernel/audit.c | 2 ++ arch/parisc/kernel/compat_audit.c | 2 ++ arch/powerpc/kernel/audit.c | 2 ++ arch/powerpc/kernel/compat_audit.c | 2 ++ arch/s390/kernel/audit.c | 2 ++ arch/s390/kernel/compat_audit.c | 2 ++ arch/sparc/kernel/audit.c | 2 ++ arch/sparc/kernel/compat_audit.c | 2 ++ arch/x86/ia32/audit.c | 2 ++ arch/x86/kernel/audit_64.c | 2 ++ kernel/auditsc.c | 3 +++ lib/audit.c | 4 ++++ lib/compat_audit.c | 4 ++++ 15 files changed, 35 insertions(+) diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c index 96a9d18ff4c4..06a911b685d1 100644 --- a/arch/alpha/kernel/audit.c +++ b/arch/alpha/kernel/audit.c @@ -42,6 +42,8 @@ int audit_classify_syscall(int abi, unsigned syscall) return 3; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/ia64/kernel/audit.c b/arch/ia64/kernel/audit.c index 5192ca899fe6..5eaa888c8fd3 100644 --- a/arch/ia64/kernel/audit.c +++ b/arch/ia64/kernel/audit.c @@ -43,6 +43,8 @@ int audit_classify_syscall(int abi, unsigned syscall) return 3; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c index 9eb47b2225d2..fc721a7727ba 100644 --- a/arch/parisc/kernel/audit.c +++ b/arch/parisc/kernel/audit.c @@ -52,6 +52,8 @@ int audit_classify_syscall(int abi, unsigned syscall) return 3; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c index 20c39c9d86a9..fc6d35918c44 100644 --- a/arch/parisc/kernel/compat_audit.c +++ b/arch/parisc/kernel/compat_audit.c @@ -35,6 +35,8 @@ int parisc32_classify_syscall(unsigned syscall) return 3; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 1; } diff --git a/arch/powerpc/kernel/audit.c b/arch/powerpc/kernel/audit.c index a2dddd7f3d09..8f32700b0baa 100644 --- a/arch/powerpc/kernel/audit.c +++ b/arch/powerpc/kernel/audit.c @@ -54,6 +54,8 @@ int audit_classify_syscall(int abi, unsigned syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/powerpc/kernel/compat_audit.c b/arch/powerpc/kernel/compat_audit.c index 55c6ccda0a85..ebe45534b1c9 100644 --- a/arch/powerpc/kernel/compat_audit.c +++ b/arch/powerpc/kernel/compat_audit.c @@ -38,6 +38,8 @@ int ppc32_classify_syscall(unsigned syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 1; } diff --git a/arch/s390/kernel/audit.c b/arch/s390/kernel/audit.c index d395c6c9944c..d964cb94cfaf 100644 --- a/arch/s390/kernel/audit.c +++ b/arch/s390/kernel/audit.c @@ -54,6 +54,8 @@ int audit_classify_syscall(int abi, unsigned syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/s390/kernel/compat_audit.c b/arch/s390/kernel/compat_audit.c index 444fb1f66944..f7b32933ce0e 100644 --- a/arch/s390/kernel/compat_audit.c +++ b/arch/s390/kernel/compat_audit.c @@ -39,6 +39,8 @@ int s390_classify_syscall(unsigned syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 1; } diff --git a/arch/sparc/kernel/audit.c b/arch/sparc/kernel/audit.c index a6e91bf34d48..b6dcca9c6520 100644 --- a/arch/sparc/kernel/audit.c +++ b/arch/sparc/kernel/audit.c @@ -55,6 +55,8 @@ int audit_classify_syscall(int abi, unsigned int syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/arch/sparc/kernel/compat_audit.c b/arch/sparc/kernel/compat_audit.c index 10eeb4f15b20..d2652a1083ad 100644 --- a/arch/sparc/kernel/compat_audit.c +++ b/arch/sparc/kernel/compat_audit.c @@ -39,6 +39,8 @@ int sparc32_classify_syscall(unsigned int syscall) return 4; case __NR_execve: return 5; + case __NR_openat2: + return 6; default: return 1; } diff --git a/arch/x86/ia32/audit.c b/arch/x86/ia32/audit.c index 6efe6cb3768a..57a02ade5503 100644 --- a/arch/x86/ia32/audit.c +++ b/arch/x86/ia32/audit.c @@ -39,6 +39,8 @@ int ia32_classify_syscall(unsigned syscall) case __NR_execve: case __NR_execveat: return 5; + case __NR_openat2: + return 6; default: return 1; } diff --git a/arch/x86/kernel/audit_64.c b/arch/x86/kernel/audit_64.c index 83d9cad4e68b..39de1e021258 100644 --- a/arch/x86/kernel/audit_64.c +++ b/arch/x86/kernel/audit_64.c @@ -53,6 +53,8 @@ int audit_classify_syscall(int abi, unsigned syscall) case __NR_execve: case __NR_execveat: return 5; + case __NR_openat2: + return 6; default: return 0; } diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 8bb9ac84d2fb..f5616e70d129 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -76,6 +76,7 @@ #include <linux/fsnotify_backend.h> #include <uapi/linux/limits.h> #include <uapi/linux/netfilter/nf_tables.h> +#include <uapi/linux/openat2.h> #include "audit.h" @@ -195,6 +196,8 @@ static int audit_match_perm(struct audit_context *ctx, int mask) return ((mask & AUDIT_PERM_WRITE) && ctx->argv[0] == SYS_BIND); case 5: /* execve */ return mask & AUDIT_PERM_EXEC; + case 6: /* openat2 */ + return mask & ACC_MODE((u32)((struct open_how *)ctx->argv[2])->flags); default: return 0; } diff --git a/lib/audit.c b/lib/audit.c index 5004bff928a7..8f030b9a2d10 100644 --- a/lib/audit.c +++ b/lib/audit.c @@ -60,6 +60,10 @@ int audit_classify_syscall(int abi, unsigned syscall) #endif case __NR_execve: return 5; +#ifdef __NR_openat2 + case __NR_openat2: + return 6; +#endif default: return 0; } diff --git a/lib/compat_audit.c b/lib/compat_audit.c index 77eabad69b4a..8aff0d0d9ba0 100644 --- a/lib/compat_audit.c +++ b/lib/compat_audit.c @@ -45,6 +45,10 @@ int audit_classify_compat_syscall(int abi, unsigned syscall) #endif case __NR_execve: return 5; +#ifdef __NR_openat2 + case __NR_openat2: + return 6; +#endif default: return 1; } -- 2.27.0