BugZero | F5 BugID 1040685 - Core file on blade slot2 after reboot (TMM SIGSEGV...

F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

Last updated on July 18th, 2026

BugZero Risk Score
8.7 High

Overall: 8.7

Severity: 9.1

Community: 4.2

Lifecycle: 10.0

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Bug Details

Priority: 2-Critical
Status: Resolved
Impact Category: Advanced Firewall Manager

Description

Symptoms

Tmm crashes after reboot.

Impact

Slot usable until manual intervention. Traffic disrupted while tmm restarts. Note: this issue happened only once and no further occurrence was reported.

Conditions

This is encountered intermittently after rebooting a blade.

Workaround

None

Fix Information

None

Change history

Links

Original Vendor Announcement

Relevant Products

Click on a version to see all relevant bugs

Affected versions:14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5

Fixed versions: 17.0.0, 16.1.4, 15.1.10

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: 17.0.0, 16.1.4, 15.1.10

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F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

Last updated on July 18th, 2026

BugZero Risk Score8.7 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

F5 - Defect ID: 1040685

Core file on blade slot2 after reboot (TMM SIGSEGV in pktclass_classifier)

Last updated on July 18th, 2026

BugZero Risk Score8.7 High

Bug Details

Symptoms

Impact

Conditions

Workaround

Fix Information

Links

Top F5 Defects

Ready to prevent the next vendor outage?

BugZero Risk Score
8.7 High

BugZero Risk Score
8.7 High