Segfault on Linux

[TiagoQueiroz]

Recently I noticed that Zoom is experiencing some segfaults shortly after it starts, then a few other times during a meeting. It also happened a couple of times during a meeting and after a segfault, my mouse would get very slow, the whole UI would be super slow, after about 30s or so without touching the mouse the computer looked normal again. During this period the audio for me and my video to other participants was not affected, I could talk and hear everybody, nobody mentioned my video freezing. However, once I touched the mouse again, the slowness would start again, once the computer was "normal" I could use the keyboard without any issues, I could open other applications, move windows, etc.

The only real fix is to force reboot my laptop.

Here is the relevant output from dmesg -T -e :

[Wed Mar 12 10:00:05 2025] [Mar12 10:00] ZoomWebviewHost[16727]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 10 (core 2, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000020] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:00:05 2025] [ +0.015092] ZoomWebviewHost[16742]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 10 (core 2, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000021] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:00:05 2025] [ +0.008986] ZoomWebviewHost[16746]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda5b7fb330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 4 (core 4, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000023] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:00:05 2025] [ +0.006222] ZoomWebviewHost[16752]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 9 (core 1, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000021] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:00:05 2025] [ +0.000610] ZoomWebviewHost[16744]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 8 (core 0, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000019] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:00:05 2025] [ +0.009168] ZoomWebviewHost[16762]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 1 (core 1, socket 0)
[Wed Mar 12 10:00:05 2025] [ +0.000021] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [Mar12 10:05] ZoomWebviewHost[18002]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 4 (core 4, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000011] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [ +0.053211] ZoomWebviewHost[18034]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 14 (core 6, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000012] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [ +0.002155] ZoomWebviewHost[18036]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 12 (core 4, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000010] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [ +0.082286] ZoomWebviewHost[18066]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 15 (core 7, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000017] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [ +0.073119] ZoomWebviewHost[18089]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 12 (core 4, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000017] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:05:06 2025] [ +0.027727] ZoomWebviewHost[18107]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 13 (core 5, socket 0)
[Wed Mar 12 10:05:06 2025] [ +0.000017] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [Mar12 10:10] ZoomWebviewHost[19125]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 11 (core 3, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000012] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [ +0.187806] ZoomWebviewHost[19146]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 5 (core 5, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000011] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [ +0.131622] ZoomWebviewHost[19166]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 12 (core 4, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000015] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [ +0.044361] ZoomWebviewHost[19186]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 5 (core 5, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000016] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [ +0.048274] ZoomWebviewHost[19217]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda537fb330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 6 (core 6, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000326] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[Wed Mar 12 10:10:07 2025] [ +0.002520] ZoomWebviewHost[19222]: segfault at 19 ip 00007dda7779bdb4 sp 00007dda52ffa330 error 6 in libcef.so[8d9adb4,7dda70eb7000+b156000] likely on CPU 14 (core 6, socket 0)
[Wed Mar 12 10:10:07 2025] [ +0.000012] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8

Zoom version: Version: 6.3.11 (7212)

X.Org X Server 1.21.1.16
X Protocol Version 11, Revision 0

Linux Kernel 6.13.6-arch1-1

Distro: Arch Linux

[SCPS_Zoom_User]

Similar here except the webcam stops working and the driver /dev/video0 is not accessible  anymore (qv4l2 does not detect a device dev/video0 anymore. Sometimes it recovers, sometimes I need to reboot.

[9641.611705] ZoomWebviewHost[15047]: segfault at 19 ip 00007fc00bb9bdb4 sp 00007fbfef7fb3f0 error 6 in libcef.so[8d9adb4,7fc0052b7000+b156000] likely on CPU 13 (core 25, socket 0)
[ 9641.611719] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[ 9641.697389] ZoomWebviewHost[15056]: segfault at 19 ip 00007fc00bb9bdb4 sp 00007fbfef7fb3f0 error 6
[ 9641.697388] ZoomWebviewHost[15059]: segfault at 19 ip 00007fc00bb9bdb4 sp 00007fbfe6ffa3f0 error 6
[ 9641.697394] in libcef.so[8d9adb4,7fc0052b7000+b156000]
[ 9641.697395] in libcef.so[8d9adb4,7fc0052b7000+b156000] likely on CPU 15 (core 27, socket 0)
[ 9641.697398] likely on CPU 13 (core 25, socket 0)

Any help would be appreciated

[DavidMonro]

I'm seeing the same thing.

[194632.122068] ZoomWebviewHost[902454]: segfault at 19 ip 00007781e5b9bdb4 sp 00007781bbffc2f0 error 6 in libcef.so[8d9adb4,7781df2b7000+b156000] likely on CPU 2 (core 2, socket 0)
[194632.131123] ZoomWebviewHost[902463]: segfault at 19 ip 00007781e5b9bdb4 sp 00007781bbffc2f0 error 6
[194632.138111] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8
[194632.138138]  in libcef.so[8d9adb4,7781df2b7000+b156000] likely on CPU 0 (core 0, socket 0)
[194632.166069] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8

ubuntu 24.04

zoom 6.3.6.6315

using cinnamon on xorg

[opoplawski]

Same here.  AlmaLinux 8.10

[SCPS_Zoom_User]

Same here except that the webcam stops working randomly and the device /dev/video0 disappears. 

[11761.501332] ZoomWebviewHost[10376]: segfault at 19 ip 00007f334e59bdb4 sp 00007f3331ff83f0 error 6 in libcef.so[8d9adb4,7f3347cb7000+b156000] likely on CPU 12 (core 24, socket 0)
[11761.501341] Code: 8b 07 45 31 f6 3d 00 04 00 00 44 0f 42 f0 e8 33 00 00 00 8b 43 10 8b 4b 18 0f b6 c0 c1 e0 0c 0f b6 c9 c1 e1 14 09 c1 44 09 f1 <c6> 01 00 41 81 e6 ff 0f 00 00 41 c6 06 00 bf 01 00 00 00 e8 e4 b8

Gentoo Linux kept up to date and latest Zoom version

[JimAvera]

Same on Ubuntu 24.04 LTS

[ianbrown]

Same issue on brand new Rocky Linux 9.5 installation. Have tried using Zoom 6.3.11, 6.3.6 and 6.3.0. Only happens with Zoom. All other audio, (Google Meet, MS Teams and YT Music) is working as expected.

[Andrew_McMillan]

Same issue here on Debian.  Very frustrating - generally sound dies within about 5 minutes of jioning a call.  Quit & rejoin resets it, but then it fails again 😞

[nE0sIghT]

Confirming. This crash affects screencast - it works first time, but shows black screen any subsequent attempts.

Stack trace:

```

Stack trace of thread 21783:
#0 0x0000795a7839bdb4 n/a (libcef.so + 0x8d9bdb4)
#1 0x0000795a7839efd1 n/a (libcef.so + 0x8d9efd1)
#2 0x0000795a6d241810 n/a (libc.so.6 + 0x41810)
#3 0x0000795a6d321ab4 mremap (libc.so.6 + 0x121ab4)
#4 0x0000795a6d2b02e5 realloc (libc.so.6 + 0xb02e5)
#5 0x0000795a6630e9f1 n/a (n/a + 0x0)

```