[Bug 1662891] Re: kernel NULL pointer dereference
Due to long running research projects on this computer I can not test the upstream kernel in the near future. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1662891 Title: kernel NULL pointer dereference To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1662891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1662891] [NEW] kernel NULL pointer dereference
Public bug reported: BUG: unable to handle kernel NULL pointer dereference at 0008 On login to the computer with ssh I can no longer call htop (blank screen) or ps -elf (freeze after displaying the result). The computer was upgraded from 1TB ECC RAM to 1.5 TB ECC RAM a few days before the event. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-59-generic 4.4.0-59.80 ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35 Uname: Linux 4.4.0-59-generic x86_64 AlsaDevices: total 0 crw-rw+ 1 root audio 116, 1 Jan 30 11:22 seq crw-rw+ 1 root audio 116, 33 Jan 30 11:22 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Feb 8 14:14:36 2017 HibernationDevice: RESUME=UUID=b80a8df2-0260-4eeb-ab4a-68bb246e5f6e InstallationDate: Installed on 2016-05-02 (282 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. MachineType: Supermicro SYS-6028U-TRT+ PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.utf8 SHELL=/bin/bash ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-59-generic root=UUID=26de5dd5-eed8-4ccb-ad03-c832b4760c7f ro PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-59-generic N/A linux-backports-modules-4.4.0-59-generic N/A linux-firmware1.157.6 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 12/17/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0 dmi.board.asset.tag: Default string dmi.board.name: X10DRU-i+ dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: Default string dmi.chassis.type: 1 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0:bd12/17/2015:svnSupermicro:pnSYS-6028U-TRT+:pvr0123456789:rvnSupermicro:rnX10DRU-i+:rvr1.01:cvnSupermicro:ct1:cvr0123456789: dmi.product.name: SYS-6028U-TRT+ dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1662891 Title: kernel NULL pointer dereference To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1662891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1367296] Re: Software RAID1 gets stuck on data check
Unable to test upstream kernel as we need the system running for some days which it still does. Will a reboot in this state leave me with a broken system ? ** Tags added: kernel-unable-to-test-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1367296 Title: Software RAID1 gets stuck on data check To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1367296/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1367296] [NEW] Software RAID1 gets stuck on data check
Public bug reported: Description:Ubuntu 14.04.1 LTS Release:14.04 cat /proc/mdstat shows that md1 (swap) got stuck at 0% during the nightly data check of the RAID. In hope of stopping the sync I called /usr/share/mdadm/checkarray -x -a This was a bad idea as this command got stuck too and cat /proc/mdstat was useless afterwards as it did not show anything nor finish. No idea what to do as I fear a reboot will leave me with a damaged system. dmesg showed this multiple times : [4367634.910108] INFO: task md1_resync:16812 blocked for more than 120 seconds. [4367634.954575] Not tainted 3.13.0-32-generic #57-Ubuntu [4367634.978601] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [4367635.028209] md1_resync D 885fbf354440 0 16812 2 0x [4367635.028225] 8820386cbbf8 0002 880dd3ce17f0 8820386cbfd8 [4367635.028230] 00014440 00014440 880dd3ce17f0 8825e4566d00 [4367635.028232] 885f75ea84f8 8820386cbc70 885f75ea84e0 885f75ea8480 [4367635.028235] Call Trace: [4367635.028248] [817200d9] schedule+0x29/0x70 [4367635.028265] [a0047437] sync_request+0x227/0xb30 [raid1] [4367635.028270] [810aaf00] ? prepare_to_wait_event+0x100/0x100 [4367635.028274] [815a8d33] md_do_sync+0x9a3/0xdd0 [4367635.028277] [815a58d8] md_thread+0x118/0x130 [4367635.028279] [815a57c0] ? mddev_unlock+0xe0/0xe0 [4367635.028282] [8108b3d2] kthread+0xd2/0xf0 [4367635.028284] [8108b300] ? kthread_create_on_node+0x1d0/0x1d0 [4367635.028288] [8172c5bc] ret_from_fork+0x7c/0xb0 [4367635.028290] [8108b300] ? kthread_create_on_node+0x1d0/0x1d0 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-32-generic 3.13.0-32.57 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 Uname: Linux 3.13.0-32-generic x86_64 AlsaDevices: total 0 crw-rw 1 root audio 116, 1 Sep 3 12:31 seq crw-rw 1 root audio 116, 33 Sep 3 12:31 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Tue Sep 9 15:12:19 2014 HibernationDevice: RESUME=UUID=86aad4c3-b114-4aaa-9cb7-c47ddd1c4c75 InstallationDate: Installed on 2014-07-07 (64 days ago) InstallationMedia: Ubuntu-Server 14.04 LTS Trusty Tahr - Release amd64 (20140416.2) MachineType: Supermicro X9DRi-LN4+/X9DR3-LN4+ PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=223f3450-172e-43e3-b99f-205c21f39868 ro nomdmonddf nomdmonisw RelatedPackageVersions: linux-restricted-modules-3.13.0-32-generic N/A linux-backports-modules-3.13.0-32-generic N/A linux-firmware 1.127.5 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 05/27/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.0b dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DRi-LN4+/X9DR3-LN4+ dmi.board.vendor: Supermicro dmi.board.version: REV:1.20A dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.0b:bd05/27/2014:svnSupermicro:pnX9DRi-LN4+/X9DR3-LN4+:pvr0123456789:rvnSupermicro:rnX9DRi-LN4+/X9DR3-LN4+:rvrREV1.20A:cvnSupermicro:ct17:cvr0123456789: dmi.product.name: X9DRi-LN4+/X9DR3-LN4+ dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1367296 Title: Software RAID1 gets stuck on data check To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1367296/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 114482] Re: [feisty] At boot-up I'm connected to an untrusted wireless network and Network Manager doesn't tell me about it
I cannot reproduce the bug in Hardy, so it would seem fixed :) -- [feisty] At boot-up I'm connected to an untrusted wireless network and Network Manager doesn't tell me about it https://bugs.launchpad.net/bugs/114482 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 114482] Re: [feisty] At boot-up I'm connected to an untrusted wireless network and Network Manager doesn't tell me about it
OK, I still feel it is a security issue, but of course it depends on how many people are affected by it. In the meantime I have been able to reproduce the issue with the server being (accidentally) spoofed. The reason it's hard to test this is, that I don't have my own wireless network, and I can't affect when other people connect to the wireless network or if they're close enough for me to talk to them. Prerequisites to reproduce (rather hardware and setup intensive, I'm afraid): - A laptop with wired and wireless network, preferably similar hardware to the Dell Latitude D505, with a newly installed Feisty. If you in fact use the D505, you need to install the bcm43xx driver to get the wireless working. sudo apt-get install bcm43xx-fwcutter sudo /usr/share/bcm43xx-fwcutter/install_bcm43xx_firmware.sh - A wireless router with a DHCP server set up similar to your wired DHCP server (same local IP range etc.). The router should not have any security set up. Steps to reproduce: 1. Bootup your laptop wired. Verify that n-m tells your that you're on the wired network. 2. Try to ping the remote network (ping -Ieth1 192.168.1.1) 3. If you can ping the remote network try to physically disconnect your laptop from the wired network. Verify tha nm-applet tells you you've been disconnected. 4. Now do a traceroute (or use a browser to connect to for example google.com). Verify that you're going through the wireless router. 5. Reconnect your wired network. Verify that n-m tells you that you're connected to the wired network. 6. Repeat step 4. Sometimes you should still be connected to the wireless network and go through the wireless router. I'm always able to do this. If you're not, it must be some issue with my specific hardware. If you can't do the above, you're done. Otherwise, here's the preriquisites for the server spoofing issue - A server at some address not specified by your wired DHCP server (like 192.168.1.2) - Another PC with the same IP as the internal server (192.168.1.2) connected to the wireless. 7. After step 6 has been completed, try to ping to 192.168.1.2. Lookup the MAC address in the arp table (arp -a 192.168.1.2). If the MAC address is the remote 1921.168.1.2, you've succesfully spoofed the internal server. -- [feisty] At boot-up I'm connected to an untrusted wireless network and Network Manager doesn't tell me about it https://bugs.launchpad.net/bugs/114482 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
