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...

CVE-2022-49441 tty: fix deadlock caused by calling printk() under tty_port->lock

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...

CVE-2022-49406 block: Fix potential deadlock in blk_ia_range_sysfs_show()

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...

CVE-2022-49406 block: Fix potential deadlock in blk_ia_range_sysfs_show()

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...

CVE-2022-49371 driver core: fix deadlock in __device_attach

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...

CVE-2022-49371

CVE-2022-49371: In the Linux kernel, driver core: fix deadlock in __device_attach. The deadlock occurs when async_probe is scheduled while holding device_lock(dev); async_helper may also acquire dev, causing A-A deadlock. The fix moves async_schedule_dev outside the device_lock path, leveraging t...

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...

CVE-2022-49315

CVE-2022-49315 concerns a deadlock in the Linux kernel, specifically in the staging driver rtl8192e (rtllib_beacons_stop). The issue arises when rtllib_beacons_stop() holds ieee->beacon_lock while calling del_timer_sync(), while the timer handler (rtllib_send_beacon_cb) needs the same lock, ca...

CVE-2022-49313

CVE-2022-49313 : Linux kernel patch fixes a deadlock in usb host oxu_bus_suspend(). The issue arises when oxu_bus_suspend() holds oxu->lock while waiting for a timer to stop via del_timer_sync(), but the timer handler also needs the same lock, causing a potential deadlock. The patch removes de...

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...

CVE-2022-49313 drivers: usb: host: Fix deadlock in oxu_bus_suspend()

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...

CVE-2022-49313 drivers: usb: host: Fix deadlock in oxu_bus_suspend()

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...

CVE-2022-49311

CVE-2022-49311 concerns a deadlock in the Linux kernel driver rtl8192bs (rtw_joinbss_event_prehandle) where a timer deletion under a spin_lock_bh caused a timer handler to wait on the same lock. The issue manifested as two threads blocking each other, risking an infinite hang. The documented fix ...

CVE-2022-49309 drivers: staging: rtl8723bs: Fix deadlock in rtw_surveydone_event_callback()

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 |...

CVE-2022-49309

CVE-2022-49309 (Linux kernel) describes a deadlock in drivers: staging: rtl8723bs, specifically in rtw_surveydone_event_callback(). The issue occurs when a thread holds pmlmepriv->lock inside the callback and calls del_timer_sync() to stop a timer that is also needed by the timer handler, caus...

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 |...

CVE-2022-49305 drivers: staging: rtl8192u: Fix deadlock in ieee80211_beacons_stop()

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 |...

CVE-2022-49305

CVE-2022-49305 affects the Linux kernel driver path drivers/staging/rtl8192u where a deadlock in ieee80211_beacons_stop() could occur. The root cause is a lock-order interaction: del_timer_sync() waited while holding ieee->beacon_lock in ieee80211_beacons_stop(), but the timer handler also nee...

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 |...

CVE-2022-49303

CVE-2022-49303 concerns a Linux kernel deadlock in the rtl8192eu driver (drivers/staging/rtl8192eu) during rtw_joinbss_event_prehandle. The provided details describe a lock-order issue: thread 1 holds pmlmepriv->lock while waiting on del_timer_sync(), but the timer handler (thread 2) also need...