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| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-09-16 12:44:20 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-09-16 12:44:20 +0200 |
| commit | e71b9dff0634edb127f449e076e883ef24a8c76c (patch) | |
| tree | bc490e6c99d832641198f81a4d2726d13fc052e7 /security/integrity/ima/ima_main.c | |
| parent | 9395452b4aab7bc2475ef8935b4a4fb99d778d70 (diff) | |
| download | op-kernel-dev-e71b9dff0634edb127f449e076e883ef24a8c76c.zip op-kernel-dev-e71b9dff0634edb127f449e076e883ef24a8c76c.tar.gz | |
ima: use file_dentry()
Ima tries to call ->setxattr() on overlayfs dentry after having locked
underlying inode, which results in a deadlock.
Reported-by: Krisztian Litkey <kli@iki.fi>
Fixes: 4bacc9c9234c ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org> # v4.2
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security/integrity/ima/ima_main.c')
| -rw-r--r-- | security/integrity/ima/ima_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 596ef61..423d111 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -228,7 +228,7 @@ static int process_measurement(struct file *file, char *buf, loff_t size, if ((action & IMA_APPRAISE_SUBMASK) || strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0) /* read 'security.ima' */ - xattr_len = ima_read_xattr(file->f_path.dentry, &xattr_value); + xattr_len = ima_read_xattr(file_dentry(file), &xattr_value); hash_algo = ima_get_hash_algo(xattr_value, xattr_len); |
