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| author | Jeff Vander Stoep <jeffv@google.com> | 2016-04-05 22:06:27 +0200 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2016-04-05 22:11:56 +0200 |
| commit | 61d612ea731e57dc510472fb746b55cdc017f371 (patch) | |
| tree | b44c2c0228284fffaa2f7a09de7bae85da0a3d72 /security/selinux/include | |
| parent | selinux: consolidate the ptrace parent lookup code (diff) | |
| download | linux-61d612ea731e57dc510472fb746b55cdc017f371.tar.xz linux-61d612ea731e57dc510472fb746b55cdc017f371.zip | |
selinux: restrict kernel module loading
Utilize existing kernel_read_file hook on kernel module load.
Add module_load permission to the system class.
Enforces restrictions on kernel module origin when calling the
finit_module syscall. The hook checks that source type has
permission module_load for the target type.
Example for finit_module:
allow foo bar_file:system module_load;
Similarly restrictions are enforced on kernel module loading when
calling the init_module syscall. The hook checks that source
type has permission module_load with itself as the target object
because the kernel module is sourced from the calling process.
Example for init_module:
allow foo foo:system module_load;
Signed-off-by: Jeff Vander Stoep <jeffv@google.com>
[PM: fixed return value of selinux_kernel_read_file()]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux/include')
| -rw-r--r-- | security/selinux/include/classmap.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h index ef83c4b85a33..8fbd1383d75e 100644 --- a/security/selinux/include/classmap.h +++ b/security/selinux/include/classmap.h @@ -32,7 +32,7 @@ struct security_class_mapping secclass_map[] = { "setsockcreate", NULL } }, { "system", { "ipc_info", "syslog_read", "syslog_mod", - "syslog_console", "module_request", NULL } }, + "syslog_console", "module_request", "module_load", NULL } }, { "capability", { "chown", "dac_override", "dac_read_search", "fowner", "fsetid", "kill", "setgid", "setuid", "setpcap", |