diff options
Diffstat (limited to 'security/integrity/ima/ima_main.c')
| -rw-r--r-- | security/integrity/ima/ima_main.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 995bd1b98fa8..5a1bf3df11f8 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -178,11 +178,18 @@ static void ima_dec_counts(struct ima_iint_cache *iint, struct inode *inode, struct file *file) { mode_t mode = file->f_mode; + bool dump = false; + BUG_ON(!mutex_is_locked(&iint->mutex)); - if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) + if ((mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ) { + if (unlikely(iint->readcount == 0)) + dump = true; iint->readcount--; + } if (mode & FMODE_WRITE) { + if (unlikely(iint->writecount == 0)) + dump = true; iint->writecount--; if (iint->writecount == 0) { if (iint->version != inode->i_version) @@ -190,10 +197,8 @@ static void ima_dec_counts(struct ima_iint_cache *iint, struct inode *inode, } } - if (((iint->readcount < 0) || - (iint->writecount < 0)) && - !ima_limit_imbalance(file)) { - printk(KERN_INFO "%s: open/free imbalance (r:%ld w:%ld)\n", + if (dump && !ima_limit_imbalance(file)) { + printk(KERN_INFO "%s: open/free imbalance (r:%u w:%u)\n", __func__, iint->readcount, iint->writecount); dump_stack(); } |