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| author |   Bruno E. O. Meneguele <bmeneguele@gmail.com> | 2017-12-05 11:35:32 -0200 |
|---|---|---|
| committer |   Mimi Zohar <zohar@linux.vnet.ibm.com> | 2017-12-18 09:43:48 -0500 |
| commit | 9c655be0644429b71396347887b43676ab4f6781 (patch) | |
| tree | 8c4cf2283c3fa79d712e4119d3684f08dac2d73c /security | |
| parent | ima: pass filename to ima_rdwr_violation_check() (diff) | |
| download | linux-dev-9c655be0644429b71396347887b43676ab4f6781.tar.xz linux-dev-9c655be0644429b71396347887b43676ab4f6781.zip | |
ima: log message to module appraisal error
Simple but useful message log to the user in case of module appraise is
forced and fails due to the lack of file descriptor, that might be
caused by kmod calls to compressed modules.
Signed-off-by: Bruno E. O. Meneguele <brdeoliv@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/ima/ima_main.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 0abc7d0db90b..21330d0455b0 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -404,8 +404,10 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id) if (!file && read_id == READING_MODULE) { if (!sig_enforce && (ima_appraise & IMA_APPRAISE_MODULES) && - (ima_appraise & IMA_APPRAISE_ENFORCE)) + (ima_appraise & IMA_APPRAISE_ENFORCE)) { + pr_err("impossible to appraise a module without a file descriptor. sig_enforce kernel parameter might help\n"); return -EACCES; /* INTEGRITY_UNKNOWN */ + } return 0; /* We rely on module signature checking */ } return 0; |