-
Bug
-
Resolution: Won't Do
-
Minor
-
None
-
rhel-9.6
-
None
-
No
-
None
-
rhel-security-special-projects
-
None
-
False
-
False
-
-
None
-
Red Hat Enterprise Linux
-
None
-
None
-
None
-
Unspecified
-
Unspecified
-
Unspecified
-
x86_64
-
None
What were you trying to do that didn't work?
rsyslogd crashes when the `mmnormalize` plugin is initialized with invalid configuration:
$ cat /var/tmp/rsyslog-crash.conf module(load="mmnormalize") action(type="mmnormalize" rule=[":%x:cef"]) $ rsyslogd -N 1 -f /var/tmp/rsyslog-crash.conf rsyslogd: version 8.2412.0-1.el9, config validation run (level 1), master config /var/tmp/rsyslog-crash.conf Segmentation fault (core dumped)
What is the impact of this issue to you?
Minor: the plugin shouldn't crash when given incomplete configuration, but the invalid configuration can only be provided by the admin
Please provide the package NVR for which the bug is seen:
rsyslog-mmnormalize-8.2412.0-1.el9.x86_64
Ho reproducible is this bug?
Always
Steps to reproduce
- Create config file as above
- Run rsyslogd as above
Expected results
rsyslogd should print an error message regarding the invalid liblognorm configuration rule, then exit with non-zero status
Actual results
rsyslogd segfaults:
Process 279860 (rsyslogd) of user 1001 dumped core. Stack trace of thread 279860: #0 0x00007f8b2c87679b fgetpos64@@GLIBC_2.2.5 (libc.so.6 + 0x7679b) #1 0x00007f8b2c6de927 ln_sampChkRunawayRule (liblognorm.so.5 + 0xe927) #2 0x00007f8b2c6e38b6 ln_sampRead (liblognorm.so.5 + 0x138b6) #3 0x00007f8b2c6e4110 ln_sampLoadFromString (liblognorm.so.5 + 0x14110) #4 0x00007f8b2c6e419f ln_loadSamplesFromString (liblognorm.so.5 + 0x1419f) #5 0x00007f8b2cda87d9 buildInstance (mmnormalize.so + 0x17d9) #6 0x00007f8b2cda9418 newActInst (mmnormalize.so + 0x2418) #7 0x0000562742f1b03e actionNewInst (rsyslogd + 0x7703e) #8 0x0000562742ede442 cnfstmtNewAct (rsyslogd + 0x3a442) #9 0x0000562742ed2161 yyparse (rsyslogd + 0x2e161) #10 0x0000562742ee84d5 load (rsyslogd + 0x444d5) #11 0x0000562742ec338b initAll (rsyslogd + 0x1f38b) #12 0x0000562742ebc2e0 main (rsyslogd + 0x182e0) #13 0x00007f8b2c8295d0 __libc_start_call_main (libc.so.6 + 0x295d0) #14 0x00007f8b2c829680 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x29680) #15 0x0000562742ebc6b5 _start (rsyslogd + 0x186b5) ELF object binary architecture: AMD x86-64
