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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-27 13:42:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-27 13:42:11 -0700
commitf1c921fb70de06c7eda59104470134aecc7a07c4 (patch)
tree9e4bc137ef8396b8cdb64d7380e3be26d3fbf8b0 /security/integrity
parentfafe1e39ed213221c0bce6b0b31669334368dc97 (diff)
parente4c82eafb609c2badc56f4e11bc50fcf44b8e9eb (diff)
Merge tag 'selinux-pr-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore: - Add support for measuring the SELinux state and policy capabilities using IMA. - A handful of SELinux/NFS patches to compare the SELinux state of one mount with a set of mount options. Olga goes into more detail in the patch descriptions, but this is important as it allows more flexibility when using NFS and SELinux context mounts. - Properly differentiate between the subjective and objective LSM credentials; including support for the SELinux and Smack. My clumsy attempt at a proper fix for AppArmor didn't quite pass muster so John is working on a proper AppArmor patch, in the meantime this set of patches shouldn't change the behavior of AppArmor in any way. This change explains the bulk of the diffstat beyond security/. - Fix a problem where we were not properly terminating the permission list for two SELinux object classes. * tag 'selinux-pr-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: add proper NULL termination to the secclass_map permissions smack: differentiate between subjective and objective task credentials selinux: clarify task subjective and objective credentials lsm: separate security_task_getsecid() into subjective and objective variants nfs: account for selinux security context when deciding to share superblock nfs: remove unneeded null check in nfs_fill_super() lsm,selinux: add new hook to compare new mount to an existing mount selinux: fix misspellings using codespell tool selinux: fix misspellings using codespell tool selinux: measure state and policy capabilities selinux: Allow context mounts for unpriviliged overlayfs
Diffstat (limited to 'security/integrity')
-rw-r--r--security/integrity/ima/ima_appraise.c2
-rw-r--r--security/integrity/ima/ima_main.c14
2 files changed, 8 insertions, 8 deletions
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 565e33ff19d0..4e5eb0236278 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -76,7 +76,7 @@ int ima_must_appraise(struct user_namespace *mnt_userns, struct inode *inode,
if (!ima_appraise)
return 0;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
return ima_match_policy(mnt_userns, inode, current_cred(), secid, func,
mask, IMA_APPRAISE | IMA_HASH, NULL, NULL, NULL);
}
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 9ef748ea829f..b85d9e429426 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -391,7 +391,7 @@ int ima_file_mmap(struct file *file, unsigned long prot)
u32 secid;
if (file && (prot & PROT_EXEC)) {
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
return process_measurement(file, current_cred(), secid, NULL,
0, MAY_EXEC, MMAP_CHECK);
}
@@ -429,7 +429,7 @@ int ima_file_mprotect(struct vm_area_struct *vma, unsigned long prot)
!(prot & PROT_EXEC) || (vma->vm_flags & VM_EXEC))
return 0;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
inode = file_inode(vma->vm_file);
action = ima_get_action(file_mnt_user_ns(vma->vm_file), inode,
current_cred(), secid, MAY_EXEC, MMAP_CHECK,
@@ -470,7 +470,7 @@ int ima_bprm_check(struct linux_binprm *bprm)
int ret;
u32 secid;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
ret = process_measurement(bprm->file, current_cred(), secid, NULL, 0,
MAY_EXEC, BPRM_CHECK);
if (ret)
@@ -495,7 +495,7 @@ int ima_file_check(struct file *file, int mask)
{
u32 secid;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
return process_measurement(file, current_cred(), secid, NULL, 0,
mask & (MAY_READ | MAY_WRITE | MAY_EXEC |
MAY_APPEND), FILE_CHECK);
@@ -686,7 +686,7 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id,
/* Read entire file for all partial reads. */
func = read_idmap[read_id] ?: FILE_CHECK;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
return process_measurement(file, current_cred(), secid, NULL,
0, MAY_READ, func);
}
@@ -729,7 +729,7 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size,
}
func = read_idmap[read_id] ?: FILE_CHECK;
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
return process_measurement(file, current_cred(), secid, buf, size,
MAY_READ, func);
}
@@ -872,7 +872,7 @@ void process_buffer_measurement(struct user_namespace *mnt_userns,
* buffer measurements.
*/
if (func) {
- security_task_getsecid(current, &secid);
+ security_task_getsecid_subj(current, &secid);
action = ima_get_action(mnt_userns, inode, current_cred(),
secid, 0, func, &pcr, &template,
func_data);