This bug was fixed in the package linux - 4.2.0-21.25
---------------
linux (4.2.0-21.25) wily; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1522108
[ Upstream Kernel Changes ]
* staging/dgnc: fix info leak in ioctl
- LP: #1509565
- CVE-2015-7885
* [media] media/vivid-osd: fix info leak in ioctl
- LP: #1509564
- CVE-2015-7884
* KEYS: Fix race between key destruction and finding a keyring by name
- LP: #1508856
- CVE-2015-7872
* KEYS: Fix crash when attempt to garbage collect an uninstantiated
keyring
- LP: #1508856
- CVE-2015-7872
* KEYS: Don't permit request_key() to construct a new keyring
- LP: #1508856
- CVE-2015-7872
* isdn_ppp: Add checks for allocation failure in isdn_ppp_open()
- LP: #1508329
- CVE-2015-7799
* ppp, slip: Validate VJ compression slot parameters completely
- LP: #1508329
- CVE-2015-7799
linux (4.2.0-20.24) wily; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1521753
[ Andy Whitcroft ]
* [Tests] gcc-multilib does not exist on ppc64el
- LP: #1515541
[ Joseph Salisbury ]
* SAUCE: scsi_sysfs: protect against double execution of
__scsi_remove_device()
- LP: #1509029
[ Manoj Kumar ]
* SAUCE: (noup) cxlflash: Fix to escalate LINK_RESET also on port 1
- LP: #1513583
[ Matthew R. Ochs ]
* SAUCE: (noup) cxlflash: Fix to avoid virtual LUN failover failure
- LP: #1513583
[ Oren Givon ]
* SAUCE: (noup) iwlwifi: Add new PCI IDs for the 8260 series
- LP: #1517375
[ Seth Forshee ]
* [Config] CONFIG_DRM_AMDGPU_CIK=n
- LP: #1510405
[ Upstream Kernel Changes ]
* net/mlx5e: Disable VLAN filter in promiscuous mode
- LP: #1514861
* drivers: net: xgene: fix RGMII 10/100Mb mode
- LP: #1433290
* HID: rmi: Disable scanning if the device is not a wake source
- LP: #1515503
* HID: rmi: Set F01 interrupt enable register when not set
- LP: #1515503
* net/mlx5e: Ethtool link speed setting fixes
- LP: #1517919
* scsi_scan: don't dump trace when scsi_prep_async_scan() is called twice
- LP: #1517942
* x86/ioapic: Disable interrupts when re-routing legacy IRQs
- LP: #1508593
* xhci: Workaround to get Intel xHCI reset working more reliably
* megaraid_sas: Do not use PAGE_SIZE for max_sectors
- LP: #1475166
* net: usb: cdc_ether: add Dell DW5580 as a mobile broadband adapter
- LP: #1513847
* KVM: svm: unconditionally intercept #DB
- LP: #1520184
- CVE-2015-8104
-- Luis Henriques <luis.henriq...@canonical.com> Wed, 02 Dec 2015
17:30:58 +0000
** Changed in: linux (Ubuntu Wily)
Status: Fix Committed => Fix Released
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-7799
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-7872
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-7884
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-7885
** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-8104
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https://bugs.launchpad.net/bugs/1517942
Title:
Backport upstream commit to Ubuntu 15.10 (Wily) SRU stream
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Wily:
Fix Released
Status in linux source package in Xenial:
Fix Released
Bug description:
== Comment: #0 - UMA KRISHNAN <ukri...@us.ibm.com> - 2015-11-18 16:27:06 ==
---Problem Description---
When FC login times out, cxlflash resets the link. As part of reset, when the
link comes back up, cxlflash driver calls scsi_scan_host() and in case previous
scan is still running we get the message and stack dump on console/logs.
scsi host2: scsi_prep_async_scan called twice
CPU: 16 PID: 55 Comm: kworker/16:1 Not tainted 4.2.0-439-f9a408a+ #1
Workqueue: events cxlflash_worker_thread [cxlflash]
Call Trace:
[c00000078bea7ae0] [c000000000a6e720] dump_stack+0x90/0xbc (unreliable)
[c00000078bea7b10] [c0000000006f539c] scsi_scan_host+0x28c/0x2a0
[c00000078bea7bb0] [d000000004085344] cxlflash_worker_thread+0x144/0x430
[cxlflash]
[c00000078bea7c50] [c0000000000d8b64] process_one_work+0x1a4/0x4c0
[c00000078bea7ce0] [c0000000000d9014] worker_thread+0x194/0x5f0
[c00000078bea7d80] [c0000000000e1630] kthread+0x110/0x130
[c00000078bea7e30] [c000000000009530] ret_from_kernel_thread+0x5c/0xac
cxlflash 0009:00:00.0: cxlflash_async_err_irq: FC Port 1 -> login succeeded,
fc_status 0x114001D80000F
This message is alarming to customers. Community has already fixed this. We
would like to see the upstreamed commit
a4cf30e15ccea82a07fa5870e8af787b9ea1a672 (scsi_scan: don't dump trace when
scsi_prep_async_scan() is called twice) backported to Ubuntu 15.10 (Wily) SRU
stream.
---uname output---
Linux tul83p1 4.2.0-444-5b49ef1+ #1 SMP Wed Nov 18 12:44:21 CST 2015 ppc64le
ppc64le ppc64le GNU/Linux
Machine Type = 8286-42A
---Debugger---
A debugger is not configured
---Steps to Reproduce---
Simply disconnecting the adapter and plugging it back in, triggers this
scenario.
Contact Information = ukri...@linux.vnet.ibm.com
Stack trace output:
no
Oops output:
no
System Dump Info:
The system is not configured to capture a system dump.
*Additional Instructions for ukri...@linux.vnet.ibm.com:
-Attach sysctl -a output output to the bug.
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