CVE-2023-53055
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-05-02
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: fscrypt: destroy keyring after security_sb_delete() fscrypt_destroy_keyring() must be called after all potentially-encrypted inodes were evicted; otherwise it cannot safely destroy the keyring. Since inodes that are in-use by the Landlock LSM don't get evicted until security_sb_delete(), this means that fscrypt_destroy_keyring() must be called *after* security_sb_delete(). This fixes a WARN_ON followed by a NULL dereference, only possible if Landlock was being used on encrypted files.
Weakness Classification (1)
Affected Software (14)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | e6f4fd85ef1ee6ab356bfbd64df28c1cb73aee7e < 992a3f3e8a0c92151dfdf65fc85567c865fd558a |
| Linux | Linux | d7e7b9af104c7b389a0c21eb26532511bce4b510 < d77531fac6a1fd9f1db0195438ba5419d72b96c4 |
| Linux | Linux | d7e7b9af104c7b389a0c21eb26532511bce4b510 < 497ab5d9c7852dfedab2c9de75e41b60e54b7c5d |
| Linux | Linux | d7e7b9af104c7b389a0c21eb26532511bce4b510 < ccb820dc7d2236b1af0d54ae038a27b5b6d5ae5a |
| Linux | Linux | 391cceee6d435e616f68631e68f5b32d480b1e67 |
| Linux | Linux | 68d15d6558a386f46d815a6ac39edecad713a1bf |
| Linux | Linux | 5.15.78 < 5.15.105 |
| Linux | Linux | 5.10.154 < 5.11 |
| Linux | Linux | 6.0.8 < 6.1 |
| Linux | Linux | 6.1 |
| linux | linux_kernel | 5.10.154 – 5.11 |
| linux | linux_kernel | 6.3 |
| linux | linux_kernel | 6.3 |
| linux | linux_kernel | 6.3 |