CVE-2026-90265 btrfs: defrag: fix deadlock between defrag and delalloc space reservation

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90265

CVE-2026-90265 is a deadlock in the Linux kernel's btrfs filesystem, occurring between the defrag path and delalloc space reservation. The root cause is that btrfs_defrag_file reserves delalloc space while still holding dirty and locked folios and the extent range lock , causing a lock-ordering d...

EUVD-2026-81858

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90265 btrfs: defrag: fix deadlock between defrag and delalloc space reservation

In the Linux kernel, the following vulnerability has been resolved: btrfs: defrag: fix deadlock between defrag and delalloc space reservation While running fsstress with autodefrag and flushoncommit, hit a deadlock due to the fact that defrag reserves delalloc space while it's holding dirty and...

CVE-2026-90238 media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...

CVE-2026-90238 media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...

EUVD-2026-81831

In the Linux kernel, the following vulnerability has been resolved: media: amd: isp4: fix self-deadlock in isp4sdpwronandinit error path isp4sdpwronandinit holds opsmutex via guardmutex and, on any init failure, jumps to errdeinit and calls isp4sdpwroffanddeinit. That helper takes the same...

CVE-2026-90238

CVE-2026-90238 affects the Linux kernel AMD ISP4 media driver. The isp4sd_pwron_and_init() function holds ops_mutex via a guard and, on any initialization failure, calls isp4sd_pwroff_and_deinit() , which attempts to re-acquire the same non-recursive mutex already held by the current thread — cau...

EUVD-2026-81802

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90209 s390/debug: Fix deadlock during unregister

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90209 s390/debug: Fix deadlock during unregister

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo .../vmur/level $ rmmod vmur...

CVE-2026-90209

CVE-2026-90209 affects the Linux kernel s390dbf debug subsystem . A deadlock occurs when a debug area is unregistered (e.g., via rmmod) while an associated debugfs file is simultaneously being written to. Both the unregister path (debug_unregister() → debugfs_remove() → waiting for debugfs_file_p...

CVE-2026-90193 mailbox: qcom-cpucp: fix PREEMPT_RT self-deadlock in IRQ handler

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: fix PREEMPTRT self-deadlock in IRQ handler qcomcpucpmboxirqfn calls mboxchanreceiveddata while holding chan-lock. Under PREEMPTRT, spinlockirqsave is converted to an rtspinlock rtmutex-based, which tracks...

CVE-2026-90193 mailbox: qcom-cpucp: fix PREEMPT_RT self-deadlock in IRQ handler

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: fix PREEMPTRT self-deadlock in IRQ handler qcomcpucpmboxirqfn calls mboxchanreceiveddata while holding chan-lock. Under PREEMPTRT, spinlockirqsave is converted to an rtspinlock rtmutex-based, which tracks...

EUVD-2026-81786

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: fix PREEMPTRT self-deadlock in IRQ handler qcomcpucpmboxirqfn calls mboxchanreceiveddata while holding chan-lock. Under PREEMPTRT, spinlockirqsave is converted to an rtspinlock rtmutex-based, which tracks...

CVE-2026-90193

This CVE affects the qcom-cpucp mailbox driver in the Linux kernel under PREEMPT_RT configurations. The root cause is a lock re-entrancy deadlock : qcom_cpucp_mbox_irq_fn() invokes mbox_chan_received_data() while holding chan->lock. Under PREEMPT_RT, spin_lock_irqsave() is converted to an rt_s...

EUVD-2026-81772

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix deadlock in complain-mode changehat The use of changehat when in complain mode can cause a deadlock when the hat doesn't exist and a new learning profile is created for the missing profile. This is because changehat...

CVE-2026-90179

AppArmor in the Linux kernel is affected by a deadlock triggered when a process uses change_hat in complain mode and the target hat does not exist. The root cause is a lock-ordering conflict : change_hat() holds a lock while searching the hat list, but aa_new_learning_profile() attempts to acquir...

CVE-2026-90179 apparmor: fix deadlock in complain-mode change_hat

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix deadlock in complain-mode changehat The use of changehat when in complain mode can cause a deadlock when the hat doesn't exist and a new learning profile is created for the missing profile. This is because changehat...

CVE-2026-90179 apparmor: fix deadlock in complain-mode change_hat

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix deadlock in complain-mode changehat The use of changehat when in complain mode can cause a deadlock when the hat doesn't exist and a new learning profile is created for the missing profile. This is because changehat...