CVE-2023-53620
- Published: 2025-10-07T16:15:44.660
In the Linux kernel, the following vulnerability has been resolved:
md: fix soft lockup in status_resync
status_resync() will calculate ‘curr_resync – recovery_active’ to show
user a progress bar like following:
[============>……..] resync = 61.4%
‘curr_resync’ and ‘recovery_active’ is updated in md_do_sync(), and
status_resync() can read them concurrently, hence it’s possible that
‘curr_resync – recovery_active’ can overflow to a huge number. In this
case status_resync() will be stuck in the loop to print a large amount
of ‘=’, which will end up soft lockup.
Fix the problem by setting ‘resync’ to MD_RESYNC_ACTIVE in this case,
this way resync in progress will be reported to user.
Related CVE by CWE
No related CWE found.
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How to fix CVE-2023-53620
Description: In the Linux kernel, the following vulnerability has been resolved: md: fix soft lockup in status_resync status_resync() will calculate ‘curr_resync – recovery_active’ to show user a progress bar like following: [============>……..] resync = 61.4% ‘curr_resync’ and ‘recovery_active’ is updated in md_do_sync(), and status_resync() can read them concurrently, hence it’s possible that ‘curr_resync – recovery_active’ can […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running the affected product
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
Exploit Difficulty Assessment
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CVE details first published to NVD database
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Detection Rules & IOCs
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