BugZero | F5 BugID 520380 - save-on-auto-sync can spawn multiple invocations o...

F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

Last updated on July 18th, 2026

BugZero Risk Score
6.9 Medium

Overall: 6.9

Severity: 7.3

Community: 4.2

Lifecycle: 8.3

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Bug Details

Priority: 3-Major
Status: Verified
Impact Category: TMOS

Description

Symptoms

Unit demonstrates behaviors consistent with out-of-memory condition. 'top' and 'ps' may show multiple tmsh processes waiting to run.

Impact

Low memory condition may result in system instability.

Conditions

Enable auto-sync and save-on-auto-sync.

Workaround

None.

Fix Information

Enabled auto-sync and save-on-auto-sync no longer causes out-of-memory condition.

Change history

Links

Original Vendor Announcement

Relevant Products

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Affected versions:11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4

Fixed versions: 12.1.0, 11.6.1, 11.5.4

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 12.1.0, 11.6.1, 11.5.4

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F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

Last updated on July 18th, 2026

BugZero Risk Score6.9 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

F5 - Defect ID: 520380

save-on-auto-sync can spawn multiple invocations of tmsh, starving system of memory

Last updated on July 18th, 2026

BugZero Risk Score6.9 Medium

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
6.9 Medium

BugZero Risk Score
6.9 Medium