CVE-2023-53614
Severity CVSS v4.0:
Pending analysis
Type:
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
04/10/2025
Last modified:
05/02/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
mm/ksm: fix race with VMA iteration and mm_struct teardown<br />
<br />
exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held<br />
in write mode. Ensure that the maple tree is still valid by checking<br />
ksm_test_exit() after taking the mmap_lock in read mode, but before the<br />
for_each_vma() iterator dereferences a destroyed maple tree.<br />
<br />
Since the maple tree is destroyed, the flags telling lockdep to check an<br />
external lock has been cleared. Skip the for_each_vma() iterator to avoid<br />
dereferencing a maple tree without the external lock flag, which would<br />
create a lockdep warning.
Impact
Base Score 3.x
4.70
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.1 (including) | 6.1.22 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.2 (including) | 6.2.9 (excluding) |
| cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page