UBUNTU-CVE-2022-49441

In the Linux kernel, the following vulnerability has been resolved: tty: fix deadlock caused by calling printk under ttyport-lock ptywrite invokes kmalloc which may invoke a normal printk to print failure message. This can cause a deadlock in the scenario reported by syz-bot below: CPU0 CPU1 CPU2...

UBUNTU-CVE-2022-49536

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed. CPU A: nativequeuedspinlockslowpath+0x192 rawspinlockirqsave+0x32 lpfchandlefcperr+0x4...

UBUNTU-CVE-2022-49309

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8723bs: Fix deadlock in rtwsurveydoneeventcallback There is a deadlock in rtwsurveydoneeventcallback, which is shown below: Thread 1 | Thread 2 | settimer rtwsurveydoneeventcallback| modtimer spinlockbh //1 |...

UBUNTU-CVE-2022-49446

In the Linux kernel, the following vulnerability has been resolved: nvdimm: Fix firmware activation deadlock scenarios Lockdep reports the following deadlock scenarios for CXL root device power-management, deviceprepare, operations, and deviceshutdown operations for 'ndregion' devices: Chain exis...

UBUNTU-CVE-2022-49296

In the Linux kernel, the following vulnerability has been resolved: ceph: fix possible deadlock when holding Fwb to get inlinedata 1, mount with wsync. 2, create a file with ORDWR, and the request was sent to mds.0: cephatomicopen-- cephmdscdorequestopenc finishopenfile, dentry, cephopen--...

UBUNTU-CVE-2022-49313

In the Linux kernel, the following vulnerability has been resolved: drivers: usb: host: Fix deadlock in oxubussuspend There is a deadlock in oxubussuspend, which is shown below: Thread 1 | Thread 2 | timeraction oxubussuspend | modtimer spinlockirq //1 | wait a time ... | oxuwatchdog deltimersync...

UBUNTU-CVE-2022-49311

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192bs: Fix deadlock in rtwjoinbsseventprehandle There is a deadlock in rtwjoinbsseventprehandle, which is shown below: Thread 1 | Thread 2 | settimer rtwjoinbsseventprehandle| modtimer spinlockbh //1 | wait ...

UBUNTU-CVE-2022-49315

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fix deadlock in rtllibbeaconsstop There is a deadlock in rtllibbeaconsstop, which is shown below: Thread 1 | Thread 2 | rtllibsendbeacon rtllibbeaconsstop | modtimer spinlockirqsave //1 | wait a time...

UBUNTU-CVE-2022-49379

In the Linux kernel, the following vulnerability has been resolved: driver core: Fix waitfordeviceprobe & deferredprobetimeout interaction Mounting NFS rootfs was timing out when deferredprobetimeout was non-zero 1. This was because ipautoconfig initcall times out waiting for the network interfac...

UBUNTU-CVE-2022-49702

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when block group reclaim task is running When we start an unmount, at closectree, if we have the reclaim task running and in the middle of a data block group relocation, we can trigger a deadlock wh...

UBUNTU-CVE-2022-49303

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192eu: Fix deadlock in rtwjoinbsseventprehandle There is a deadlock in rtwjoinbsseventprehandle, which is shown below: Thread 1 | Thread 2 | settimer rtwjoinbsseventprehandle| modtimer spinlockbh //1 | wait ...

UBUNTU-CVE-2022-49547

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

UBUNTU-CVE-2022-49272

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix potential AB/BA lock with buffermutex and mmaplock syzbot caught a potential deadlock between the PCM runtime-buffermutex and the mm-mmaplock. It was brought by the recent fix to cover the racy read/write and other...

UBUNTU-CVE-2022-49316

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Don't hold the layoutget locks across multiple RPC calls When doing layoutget as part of the open compound, we have to be careful to release the layout locks before we can call any further RPC calls, such as setattr. The...

UBUNTU-CVE-2022-49488

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5mixerrelease when deadlock is detected There is a possibility for mdp5getglobalstate to return -EDEADLK when acquiring the modeset lock, but currently globalstate in mdp5mixerrelease doesn't...

UBUNTU-CVE-2022-49305

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192u: Fix deadlock in ieee80211beaconsstop There is a deadlock in ieee80211beaconsstop, which is shown below: Thread 1 | Thread 2 | ieee80211sendbeacon ieee80211beaconsstop | modtimer spinlockirqsave //1 |...

UBUNTU-CVE-2022-49371

In the Linux kernel, the following vulnerability has been resolved: driver core: fix deadlock in deviceattach In deviceattach function, The lock holding logic is as follows: ... deviceattach devicelockdev // get lock dev asyncscheduledevdeviceattachasynchelper, dev; // func asyncschedulenode...

UBUNTU-CVE-2022-49490

In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5piperelease when deadlock is detected mdp5getglobalstate runs the risk of hitting a -EDEADLK when acquiring the modeset lock, but currently mdp5piperelease doesn't check for if an error is...

UBUNTU-CVE-2022-49406

In the Linux kernel, the following vulnerability has been resolved: block: Fix potential deadlock in blkiarangesysfsshow When being read, a sysfs attribute is already protected against removal with the kobject node active reference counter. As a result, in blkiarangesysfsshow, there is no need to...

UBUNTU-CVE-2022-49327

In the Linux kernel, the following vulnerability has been resolved: bcache: avoid journal no-space deadlock by reserving 1 journal bucket The journal no-space deadlock was reported time to time. Such deadlock can happen in the following situation. When all journal buckets are fully filled by acti...