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| author | Enrico Bravi <enrico.bravi@polito.it> | 2024-05-29 21:14:34 +0300 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.ibm.com> | 2024-06-03 23:37:22 +0300 |
| commit | fbf06cee60876d50f259d0689e3c03940750f0d4 (patch) | |
| tree | 597000d6614e1c6409ace04612af4e937d406f1f /security/integrity | |
| parent | c3f38fa61af77b49866b006939479069cd451173 (diff) | |
| download | linux-fbf06cee60876d50f259d0689e3c03940750f0d4.tar.xz | |
ima: fix wrong zero-assignment during securityfs dentry remove
In case of error during ima_fs_init() all the dentry already created
are removed. {ascii, binary}_securityfs_measurement_lists are freed
calling for each array the remove_securityfs_measurement_lists(). This
function, at the end, assigns to zero the securityfs_measurement_list_count.
This causes during the second call of remove_securityfs_measurement_lists()
to leave the dentry of the array pending, not removing them correctly,
because the securityfs_measurement_list_count is already zero.
Move the securityfs_measurement_list_count = 0 after the two
remove_securityfs_measurement_lists() calls to correctly remove all the
dentry already allocated.
Fixes: 9fa8e7625008 ("ima: add crypto agility support for template-hash algorithm")
Signed-off-by: Enrico Bravi <enrico.bravi@polito.it>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/integrity')
| -rw-r--r-- | security/integrity/ima/ima_fs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c index abdd22007ed8..e4a79a9b2d58 100644 --- a/security/integrity/ima/ima_fs.c +++ b/security/integrity/ima/ima_fs.c @@ -427,8 +427,6 @@ static void __init remove_securityfs_measurement_lists(struct dentry **lists) kfree(lists); } - - securityfs_measurement_list_count = 0; } static int __init create_securityfs_measurement_lists(void) @@ -625,6 +623,7 @@ out: securityfs_remove(binary_runtime_measurements); remove_securityfs_measurement_lists(ascii_securityfs_measurement_lists); remove_securityfs_measurement_lists(binary_securityfs_measurement_lists); + securityfs_measurement_list_count = 0; securityfs_remove(ima_symlink); securityfs_remove(ima_dir); |