Suricata process dying due to hyperscan problem

bmeeks

My pull request containing the anticipated fix for this Hyperscan error has been merged. An updated Suricata package has built and should appear as an available update for 2.7.2 CE and 23.09.1 Plus users.

Look for an update to version 7.0.2_2 for the Suricata package. When installed, the new package should pull in version 7.0.2_5 of the Suricata binary.

Fingers crossed this fixes the Hyperscan issue. But as I mentioned previously, since I could never reproduce the error in my small test environment, I can't say with 100% certainty the bug I found and fixed is the actual Hyperscan culprit.

NRgia

@bmeeks said in Suricata process dying due to hyperscan problem:

My pull request containing the anticipated fix for this Hyperscan error has been merged. An updated Suricata package has built and should appear as an available update for 2.7.2 CE and 23.09.1 Plus users.

Look for an update to version 7.0.2_2 for the Suricata package. When installed, the new package should pull in version 7.0.2_5 of the Suricata binary.

For 23.09.1 I can confirm that it is available.
After the update I can see these packages

pfSense-pkg-suricata-7.0.2_2   pfSense package suricata
suricata-7.0.2_5               High Performance Network IDS, IPS and Security Monitoring engine

Thank you

kiokoman

@bmeeks
tested

and .....

not working..

[340341 - RX#01-vmx2] 2023-12-11 22:42:50 Info: checksum: No packets with invalid checksum, assuming checksum offloading is NOT used
[340346 - W#05] 2023-12-11 22:42:53 Error: spm-hs: Hyperscan returned fatal error -1.
[340347 - W#06] 2023-12-11 22:42:53 Error: spm-hs: Hyperscan returned fatal error -1.

bmeeks

@kiokoman said in Suricata process dying due to hyperscan problem:

@bmeeks
tested

and .....

not working..

[340341 - RX#01-vmx2] 2023-12-11 22:42:50 Info: checksum: No packets with invalid checksum, assuming checksum offloading is NOT used
[340346 - W#05] 2023-12-11 22:42:53 Error: spm-hs: Hyperscan returned fatal error -1.
[340347 - W#06] 2023-12-11 22:42:53 Error: spm-hs: Hyperscan returned fatal error -1.

Well, crap! I had high hopes.

Does it still work if you disable blocking mode?

kiokoman

@bmeeks
yes, it's running on an interface i have without blocking mode

bmeeks

@kiokoman said in Suricata process dying due to hyperscan problem:

@bmeeks
yes, it's running on an interface i have without blocking mode

Please share the output of this command run from a shell prompt:

pkg info | grep suricata

Let's make sure you have the latest binary. It should show suricata-7.0.2_5.

kiokoman

@bmeeks

Shell Output - pkg info | grep suricata
pfSense-pkg-suricata-7.0.2_2 pfSense package suricata
suricata-7.0.2_5 High Performance Network IDS, IPS and Security Monitoring engine

this is pfsense 2.7.2
the strange part is that i have another pfsense 23.09.1-RELEASE that it's running on vmware with the same packages and more vlans but it have no trouble ....
the only difference is that 23.09.1 is running with 4 cpu and 2.7.2 with 8 cpu
tomorrow i can try to lower the cpu and see if there is any difference

Negan

Still broken here also..... :-(

[177766 - RX#01-ix0] 2023-12-12 06:48:02 Info: checksum: More than 1/10th of packets have an invalid checksum, assuming checksum offloading is used (193/1000)
[177768 - W#02] 2023-12-12 07:17:29 Error: spm-hs: Hyperscan returned fatal error -1.

paulp

After upgrade, the problem with the hyperscan error still occurs for me as well.

bmeeks

Well, sorry but I'm fresh out of ideas at this point. I have no clue what it could be. That fix was my last best hope.

Since I cannot reproduce the problem, it makes it practically impossible to troubleshoot and debug.

Maltz

@bmeeks I think I mentioned it somewhere else, too, but the problem only occurs for me (Netgate 2100) when I have DNSBL (pfBlocker) running also. Have you tried that combo to reproduce? (Or at least occurs much faster - I've only run it for a few days in a row with DNSBL disabled, but when both are running, Suricata dies within 5-15 minutes.)

Negan

I should have also mentioned I'm running a Netgate 8200,..

paulp

I also have pfBlockerBG active. I will uninstall it to see if the problem still occurs.

@bmeeks: On one of my pfsense servers the problem manifests itself relatively quickly - a few hours.
I would be happy if I could somehow help to identify the problem.

sgnoc

Not sure why, but I haven't had a single segfault kill my suricata interfaces running auto on my netgate 7100 for the last few hours, after the upgrade. It would have normally long since had the hyperscan error and core dumped the process. I'm keeping an eye on it, but so far so good.

Bismarck

Same here with pattern match auto or blocking enabled, suricata still won't start.

pkg info | grep suricata
pfSense-pkg-suricata-7.0.2_2   pfSense package suricata
suricata-7.0.2_5               High Performance Network IDS, IPS and Security Monitoring engine

Negan

Output from my 8200

pkg info | grep suricata

pfSense-pkg-suricata-7.0.2_2 pfSense package suricata
suricata-7.0.2_5 High Performance Network IDS, IPS and Security Monitoring engine

paulp

I uninstalled pfBlockerNG, but the error persists on the wan interface.
(It is a hyper-v machine with Pfsense 23.09.1-RELEASE with suricata-7.0.2_5)

bmeeks

@Bismarck said in Suricata process dying due to hyperscan problem:

Same here with pattern match auto or blocking enabled, suricata still won't start.

What error do you get on startup if you leave the Pattern Matcher set to AC-KS but enable only blocking? In other words, enable blocking but do not change the Pattern Matcher setting.

Show the output of the suricata.log file for the impacted interface (located under the LOGS VIEW tab) and also post anything relevant during the same time from the pfSense system log (under STATUS > SYSTEM LOGS).

Bismarck

@bmeeks no error, "pattern match auto" or "blocking enabled" kills suricata. AC-KS or "disabling blocking" is fine.

bmeeks

@Bismarck said in Suricata process dying due to hyperscan problem:

@bmeeks no error, "pattern match auto" or "blocking enabled" kills suricata. AC-KS or "disabling blocking" is fine.

Help me understand this better...

I've gotten a lot of seemingly conflicting information from the posters in this long thread. My confusion is leading to frustration .

So if you leave Pattern Matching at AC-KS and enable blocking, Suricata starts and runs with no issue. Is that correct?
The only way to make it crash is to set Pattern Matcher to Auto with blocking enabled? Is that correct?
And just to close the loop- if you set Pattern Matcher to Auto but disable blocking Suricata starts without error. Is that correct?

For the crash configurations, what is the output of the suricata.log file? Is it always the "Hyperscan returned fatal error -1" message?