Bug ID 1089829: PEM A112 15.1.5.0.69.10 - Constant SIGSEGV cores on both peers

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP PEM(all modules)

Known Affected Versions:
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

Fixed In:
17.1.0, 16.1.4, 15.1.9

Opened: Mar 24, 2022

Severity: 3-Major

Symptoms

SIGSEGV tmm cores with back trace in PEM area. "pem_sessiondump --list" command will show session with custom attribute name as empty/NULL.

Impact

Traffic disrupted while tmm restarts.

Conditions

Setting pem session custom attribute value with length more than (1024- attribute name length).

Workaround

In the iRule, make sure the custom attribute value size + custom attribute name length is not more than 1024.

Fix Information

Adding restriction, allowed custom attribute value size + custom attribute name length should be less than 1024.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips