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

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-2026-90209 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-2026-90193 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...

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-2026-81772

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: 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 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-2026-90158

CVE-2026-90158 affects the Linux kernel 's m68k nfcon (Novell Netware console) driver. Since commit 7c2af0f634f1, show_cons_active() invokes the .device() callback while holding console_list_lock, yet nfcon_device() calls console_is_registered(), which attempts to acquire the same lock—causing a ...

CVE-2026-90158 m68k: nfcon: Do not call console_is_registered() in nfcon_device()

In the Linux kernel, the following vulnerability has been resolved: m68k: nfcon: Do not call consoleisregistered in nfcondevice Since 7c2af0f634f1 "tty: ttyio: use consolelistlock for list synchronization" showconsactive calls the .device method under the consolelistlock, but consoleisregistered...

EUVD-2026-81751

In the Linux kernel, the following vulnerability has been resolved: m68k: nfcon: Do not call consoleisregistered in nfcondevice Since 7c2af0f634f1 "tty: ttyio: use consolelistlock for list synchronization" showconsactive calls the .device method under the consolelistlock, but consoleisregistered...

CVE-2026-90158 m68k: nfcon: Do not call console_is_registered() in nfcon_device()

In the Linux kernel, the following vulnerability has been resolved: m68k: nfcon: Do not call consoleisregistered in nfcondevice Since 7c2af0f634f1 "tty: ttyio: use consolelistlock for list synchronization" showconsactive calls the .device method under the consolelistlock, but consoleisregistered...

CVE-2026-90103

CVE-2026-90103 is a buffer sizing flaw in the Linux kernel's NFSv4.2 flexfiles layout driver . The encode_layoutstats_maxsz macro budgets only 256 bytes for the layoutupdate4 body, but a per-data-server flexfiles record (filehandle + IO latency entries + nfstime4 + bool) can exceed that, especial...

CVE-2026-90103 NFSv4.2: fix LAYOUTSTATS send buffer exhaustion

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix LAYOUTSTATS send buffer exhaustion encodelayoutstatsmaxsz budgets XDRQUADLENPNFSLAYOUTSTATSMAXSIZE, i.e. 256 bytes, for the layoutupdate4 body written by the layout driver. The flexfiles record can exceed that...

CVE-2026-90103 NFSv4.2: fix LAYOUTSTATS send buffer exhaustion

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix LAYOUTSTATS send buffer exhaustion encodelayoutstatsmaxsz budgets XDRQUADLENPNFSLAYOUTSTATSMAXSIZE, i.e. 256 bytes, for the layoutupdate4 body written by the layout driver. The flexfiles record can exceed that...

CVE-2026-90095 fuse: Fix the condition to enable over-io-uring

In the Linux kernel, the following vulnerability has been resolved: fuse: Fix the condition to enable over-io-uring The existing condition in fuseuringcmd is there only to avoid disabling io-uring for connections that already run with it, missing was a condition to refuse any IORINGOPURINGCMD if...