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| author |   Christian Göttsche <cgzones@googlemail.com> | 2022-01-25 15:14:14 +0100 |
|---|---|---|
| committer |   Paul Moore <paul@paul-moore.com> | 2022-01-26 15:13:58 -0500 |
| commit | 9e2fe574c02bde46307255467a5e4291f65227fe (patch) | |
| tree | 5a94795947835f92fe02bbcf9a93ee369c0ddbfc /security/selinux | |
| parent | selinux: declare name parameter of hash_eval const (diff) | |
| download | linux-dev-9e2fe574c02bde46307255467a5e4291f65227fe.tar.xz linux-dev-9e2fe574c02bde46307255467a5e4291f65227fe.zip | |
selinux: enclose macro arguments in parenthesis
Enclose the macro arguments in parenthesis to avoid potential evaluation
order issues.
Note the xperm and ebitmap macros are still not side-effect safe due to
double evaluation.
Reported by clang-tidy [bugprone-macro-parentheses]
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/include/security.h | 4 | ||||
| -rw-r--r-- | security/selinux/ss/ebitmap.h | 6 | ||||
| -rw-r--r-- | security/selinux/ss/sidtab.c | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index 6482e0efb368..d91a5672de99 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h @@ -254,8 +254,8 @@ struct av_decision { #define XPERMS_AUDITALLOW 2 #define XPERMS_DONTAUDIT 4 -#define security_xperm_set(perms, x) (perms[x >> 5] |= 1 << (x & 0x1f)) -#define security_xperm_test(perms, x) (1 & (perms[x >> 5] >> (x & 0x1f))) +#define security_xperm_set(perms, x) ((perms)[(x) >> 5] |= 1 << ((x) & 0x1f)) +#define security_xperm_test(perms, x) (1 & ((perms)[(x) >> 5] >> ((x) & 0x1f))) struct extended_perms_data { u32 p[8]; }; diff --git a/security/selinux/ss/ebitmap.h b/security/selinux/ss/ebitmap.h index 9eb2d0af2805..58eb822f11ee 100644 --- a/security/selinux/ss/ebitmap.h +++ b/security/selinux/ss/ebitmap.h @@ -118,9 +118,9 @@ static inline void ebitmap_node_clr_bit(struct ebitmap_node *n, } #define ebitmap_for_each_positive_bit(e, n, bit) \ - for (bit = ebitmap_start_positive(e, &n); \ - bit < ebitmap_length(e); \ - bit = ebitmap_next_positive(e, &n, bit)) \ + for ((bit) = ebitmap_start_positive(e, &(n)); \ + (bit) < ebitmap_length(e); \ + (bit) = ebitmap_next_positive(e, &(n), bit)) \ int ebitmap_cmp(struct ebitmap *e1, struct ebitmap *e2); int ebitmap_cpy(struct ebitmap *dst, struct ebitmap *src); diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c index 293ec048af08..a54b8652bfb5 100644 --- a/security/selinux/ss/sidtab.c +++ b/security/selinux/ss/sidtab.c @@ -27,8 +27,8 @@ struct sidtab_str_cache { char str[]; }; -#define index_to_sid(index) (index + SECINITSID_NUM + 1) -#define sid_to_index(sid) (sid - (SECINITSID_NUM + 1)) +#define index_to_sid(index) ((index) + SECINITSID_NUM + 1) +#define sid_to_index(sid) ((sid) - (SECINITSID_NUM + 1)) int sidtab_init(struct sidtab *s) { |