UBUNTU-CVE-2021-47278

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: pcigeneric: Fix possible use-after-free in mhipciremove This driver's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be...

UBUNTU-CVE-2021-47281

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of sndseqtimeropen The timer instance per queue is exclusive, and sndseqtimeropen should have managed the concurrent accesses. It looks as if it's checking the already existing timer instance at the beginning,...

UBUNTU-CVE-2021-47323

In the Linux kernel, the following vulnerability has been resolved: watchdog: sc520wdt: Fix possible use-after-free in wdtturnoff This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

UBUNTU-CVE-2021-47324

In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free in wdtstartup This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the...

UBUNTU-CVE-2021-47357

In the Linux kernel, the following vulnerability has been resolved: atm: iphase: fix possible use-after-free in iamoduleexit This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running afte...

UBUNTU-CVE-2021-47321

In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free by calling deltimersync This driver's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

UBUNTU-CVE-2021-47355

In the Linux kernel, the following vulnerability has been resolved: atm: nicstar: Fix possible use-after-free in nicstarcleanup This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

CVE-2021-47294

In the Linux kernel, the following vulnerability has been resolved: netrom: Decrease sock refcount when sock timers expire Commit 63346650c1a9 "netrom: switch to sock timer API" switched to use sock timer API. It replaces modtimer by skresettimer, and deltimer by skstoptimer. Function skresettime...

UBUNTU-CVE-2021-47294

In the Linux kernel, the following vulnerability has been resolved: netrom: Decrease sock refcount when sock timers expire Commit 63346650c1a9 "netrom: switch to sock timer API" switched to use sock timer API. It replaces modtimer by skresettimer, and deltimer by skstoptimer. Function skresettime...

UBUNTU-CVE-2021-47356

In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible use-after-free in HFCcleanup This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the...

UBUNTU-CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

CVE-2021-47419 net/sched: sch_taprio: properly cancel timer from taprio_destroy()

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

CVE-2021-47396 mac80211-hwsim: fix late beacon hrtimer handling

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...

CVE-2021-47357

In the Linux kernel, the following vulnerability has been resolved: atm: iphase: fix possible use-after-free in iamoduleexit This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running afte...

CVE-2021-47357 atm: iphase: fix possible use-after-free in ia_module_exit()

In the Linux kernel, the following vulnerability has been resolved: atm: iphase: fix possible use-after-free in iamoduleexit This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running afte...

CVE-2021-47323 watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff()

In the Linux kernel, the following vulnerability has been resolved: watchdog: sc520wdt: Fix possible use-after-free in wdtturnoff This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

CVE-2021-47323

In the Linux kernel, the following vulnerability has been resolved: watchdog: sc520wdt: Fix possible use-after-free in wdtturnoff This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

CVE-2021-47294 netrom: Decrease sock refcount when sock timers expire

In the Linux kernel, the following vulnerability has been resolved: netrom: Decrease sock refcount when sock timers expire Commit 63346650c1a9 "netrom: switch to sock timer API" switched to use sock timer API. It replaces modtimer by skresettimer, and deltimer by skstoptimer. Function skresettime...

CVE-2021-47294

The CVE-2021-47294 issue affects the Linux kernel NETROM implementation where sock timer handling changed to sock timer API. sk_reset_timer() may increase the sock refcount when called on an inactive timer, so if the timer expires the handler must decrease the refcount to avoid a leak. A patch (c...