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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-04 02:38:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-04 02:38:09 +0200 |
| commit | 74a0f84590eefaf0b55941e8bd8c476b35cdd40b (patch) | |
| tree | 46f192b4dcd4aa84f8e8fce1fae93d42ee8126f8 /security/smack/smack_lsm.c | |
| parent | Merge tag 'hardening-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| parent | smack: cleanup obsolete mount option flags (diff) | |
| download | linux-74a0f84590eefaf0b55941e8bd8c476b35cdd40b.tar.xz linux-74a0f84590eefaf0b55941e8bd8c476b35cdd40b.zip | |
Merge tag 'Smack-for-6.1' of https://github.com/cschaufler/smack-next
Pull smack updates from Casey Schaufler:
"Two minor code clean-ups: one removes constants left over from the old
mount API, while the other gets rid of an unneeded variable.
The other change fixes a flaw in handling IPv6 labeling"
* tag 'Smack-for-6.1' of https://github.com/cschaufler/smack-next:
smack: cleanup obsolete mount option flags
smack: lsm: remove the unneeded result variable
SMACK: Add sk_clone_security LSM hook
Diffstat (limited to 'security/smack/smack_lsm.c')
| -rw-r--r-- | security/smack/smack_lsm.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index bffccdc494cb..dadcb9941da5 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -497,13 +497,11 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode) */ static int smack_ptrace_traceme(struct task_struct *ptp) { - int rc; struct smack_known *skp; skp = smk_of_task(smack_cred(current_cred())); - rc = smk_ptrace_rule_check(ptp, skp, PTRACE_MODE_ATTACH, __func__); - return rc; + return smk_ptrace_rule_check(ptp, skp, PTRACE_MODE_ATTACH, __func__); } /** @@ -2280,6 +2278,21 @@ static void smack_sk_free_security(struct sock *sk) } /** + * smack_sk_clone_security - Copy security context + * @sk: the old socket + * @newsk: the new socket + * + * Copy the security context of the old socket pointer to the cloned + */ +static void smack_sk_clone_security(const struct sock *sk, struct sock *newsk) +{ + struct socket_smack *ssp_old = sk->sk_security; + struct socket_smack *ssp_new = newsk->sk_security; + + *ssp_new = *ssp_old; +} + +/** * smack_ipv4host_label - check host based restrictions * @sip: the object end * @@ -4882,6 +4895,7 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(socket_getpeersec_dgram, smack_socket_getpeersec_dgram), LSM_HOOK_INIT(sk_alloc_security, smack_sk_alloc_security), LSM_HOOK_INIT(sk_free_security, smack_sk_free_security), + LSM_HOOK_INIT(sk_clone_security, smack_sk_clone_security), LSM_HOOK_INIT(sock_graft, smack_sock_graft), LSM_HOOK_INIT(inet_conn_request, smack_inet_conn_request), LSM_HOOK_INIT(inet_csk_clone, smack_inet_csk_clone), |