[Bug 1792745] [NEW] NetworkManager crashed with SIGSEGV in _int_malloc()

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You have been subscribed to a public bug by Anders Kaseorg (andersk):

I’m seeing NetworkManager crash several times on startup and on resume
from suspend. Apport doesn’t catch those for some reason, but this
happened when I tried to reproduce by manually running NetworkManager
--debug.

(Different crash from bug 1792743?  Also apport-retrace didn’t seem to
like that one.)

ProblemType: Crash
DistroRelease: Ubuntu 18.10
Package: network-manager 1.12.2-0ubuntu4
ProcVersionSignature: Ubuntu 4.18.0-7.8-generic 4.18.5
Uname: Linux 4.18.0-7-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.20.10-0ubuntu9
Architecture: amd64
Date: Sat Sep 15 14:04:50 2018
EcryptfsInUse: Yes
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig: # ifupdown has been replaced by netplan(5) on this system.  Do not edit.
InstallationDate: Installed on 2016-02-19 (939 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160218)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=false
ProcCmdline: NetworkManager --debug
SegvAnalysis:
 Segfault happened at: 0x7f79966ea378 <_int_malloc+3352>:	cmp    %rcx,0x18(%rdx)
 PC (0x7f79966ea378) ok
 source "%rcx" ok
 destination "0x18(%rdx)" (0x00000018) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: network-manager
StacktraceTop:
 _int_malloc (av=av at entry=0x7f799683ac40 <main_arena>, bytes=bytes at entry=4096) at malloc.c:4014
 __libc_calloc (n=<optimized out>, elem_size=<optimized out>) at malloc.c:3420
 g_malloc0 () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
 nlmsg_alloc_size (len=4096) at src/platform/nm-netlink.c:314
 _nl80211_alloc_msg (id=28, ifindex=2, phy=0, cmd=cmd at entry=32, flags=flags at entry=768) at src/platform/wifi/wifi-utils-nl80211.c:88
Title: NetworkManager crashed with SIGSEGV in _int_malloc()
UpgradeStatus: Upgraded to cosmic on 2018-08-17 (29 days ago)
UserGroups:
 
nmcli-con: Error: command ['nmcli', '-f', 'all', 'con'] failed with exit code 8: Error: NetworkManager is not running.
nmcli-dev: Error: command ['nmcli', '-f', 'all', 'dev'] failed with exit code 8: Error: NetworkManager is not running.
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'gen'] failed with exit code 8: Error: NetworkManager is not running.

** Affects: network-manager
     Importance: Unknown
         Status: Unknown

** Affects: network-manager (Ubuntu)
     Importance: Medium
         Status: New


** Tags: amd64 apport-crash cosmic
-- 
NetworkManager crashed with SIGSEGV in _int_malloc()
https://bugs.launchpad.net/bugs/1792745
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