CVE-2023-52940
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm: multi-gen LRU: fix crash during cgroup migration
lru_gen_migrate_mm() assumes lru_gen_add_mm() runs prior to itself. This isn't true for the following scenario:
CPU 1 CPU 2
clone() cgroup_can_fork() cgroup_procs_write() cgroup_post_fork() task_lock() lru_gen_migrate_mm() task_unlock() task_lock() lru_gen_add_mm() task_unlock()
And when the above happens, kernel crashes because of linked list corruption (mm_struct->lru_gen.list).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | bd74fdaea146029e4fa12c6de89adbe0779348a9 < 04448022311cebd30969d3aebdde765f1258b360 | affected |
| Linux | Linux | bd74fdaea146029e4fa12c6de89adbe0779348a9 < de08eaa6156405f2e9369f06ba5afae0e4ab3b62 | affected |
| Linux | Linux | 6.1 | affected |
| Linux | Linux | 0 < 6.1 | unaffected |
| Linux | Linux | 6.1.11 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/04448022311cebd30969d3aebdde765f1258b360
- https://git.kernel.org/stable/c/de08eaa6156405f2e9369f06ba5afae0e4ab3b62
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