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Bug 1810104 - snmpd crashes with segfault while walking host table
Summary: snmpd crashes with segfault while walking host table
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: net-snmp
Version: 31
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Josef Ridky
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-03-04 14:40 UTC by Martin Jackson
Modified: 2020-04-28 02:55 UTC (History)
4 users (show)

Fixed In Version: net-snmp-5.8-19.fc30 net-snmp-5.8-19.fc32 net-snmp-5.8-19.fc31
Doc Type: ---
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-25 02:41:01 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Martin Jackson 2020-03-04 14:40:08 UTC
Description of problem:
snmpwalk fails and crashes agent on version 5.8-17.fc31.x86_64

Version-Release number of selected component (if applicable):
net-snmp-1:5.8-17.fc31.x86_64

How reproducible:
every time

Steps to Reproduce:
1.start snmp agent with rocommunity configured
2.snmpwalk host table with configured rocommunity
3.

Actual results:
Agent crashes mid-table

Expected results:
Agent completes query of table

Additional info:
From the query side:
snmpwalk -v2c -c p0ller localhost host 

HOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (12179879) 1 day, 9:49:58.79
HOST-RESOURCES-MIB::hrSystemDate.0 = STRING: 2020-3-4,8:35:15.0,-6:0
HOST-RESOURCES-MIB::hrSystemInitialLoadDevice.0 = INTEGER: 393216
HOST-RESOURCES-MIB::hrSystemInitialLoadParameters.0 = STRING: "BOOT_IMAGE=(hd0,gpt2)/vmlinuz-5.5.7-200.fc31.x86_64 root=/dev/mapper/fedora_mithrandir-root ro resume=/dev/mapper/fedora_mithran"
HOST-RESOURCES-MIB::hrSystemNumUsers.0 = Gauge32: 1
HOST-RESOURCES-MIB::hrSystemProcesses.0 = Gauge32: 283
HOST-RESOURCES-MIB::hrSystemMaxProcesses.0 = INTEGER: 0
HOST-RESOURCES-MIB::hrMemorySize.0 = INTEGER: 7786308 KBytes
Timeout: No Response from localhost

Systemctl status indicates the agent core dumped:
% systemctl status snmpd
● snmpd.service - Simple Network Management Protocol (SNMP) Daemon.
   Loaded: loaded (/usr/lib/systemd/system/snmpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: core-dump) since Wed 2020-03-04 08:35:15 CST; 2min 25s ago
  Process: 193309 ExecStart=/usr/sbin/snmpd $OPTIONS -f (code=dumped, signal=SEGV)
 Main PID: 193309 (code=dumped, signal=SEGV)
      CPU: 59ms

Comment 1 Martin Jackson 2020-03-04 14:41:05 UTC
This applies to the version in updates-testing; the regression with the hrSoftwareInstalled table is fixed by -17.

Comment 2 Steve Bennett 2020-04-01 14:44:23 UTC
I'm seeing this same behaviour with 5.8.16 (which is on updates-released for Fedora 30).

Comment 3 Fedora Update System 2020-04-09 16:26:05 UTC
FEDORA-2020-c3ab547325 has been submitted as an update to Fedora 31. https://bodhi.fedoraproject.org/updates/FEDORA-2020-c3ab547325

Comment 4 Fedora Update System 2020-04-09 16:26:06 UTC
FEDORA-2020-44b769adaf has been submitted as an update to Fedora 30. https://bodhi.fedoraproject.org/updates/FEDORA-2020-44b769adaf

Comment 5 Fedora Update System 2020-04-09 16:26:08 UTC
FEDORA-2020-7303a69282 has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-7303a69282

Comment 6 Fedora Update System 2020-04-10 16:56:25 UTC
FEDORA-2020-c3ab547325 has been pushed to the Fedora 31 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-c3ab547325`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-c3ab547325

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2020-04-10 21:36:56 UTC
FEDORA-2020-44b769adaf has been pushed to the Fedora 30 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-44b769adaf`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-44b769adaf

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2020-04-11 18:51:00 UTC
FEDORA-2020-7303a69282 has been pushed to the Fedora 32 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-7303a69282`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-7303a69282

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2020-04-25 02:41:01 UTC
FEDORA-2020-44b769adaf has been pushed to the Fedora 30 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2020-04-26 02:50:46 UTC
FEDORA-2020-7303a69282 has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2020-04-28 02:55:56 UTC
FEDORA-2020-c3ab547325 has been pushed to the Fedora 31 stable repository.
If problem still persists, please make note of it in this bug report.


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