EUVD-2026-76405

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Stop remote reader update when page swap fails The remote swapreaderpage callback can return -EBUSY when the writer moves the head before the remote catches it, particularly during an event storm on a small buffer...

CVE-2026-89484 lockd: fix NULL dereference on lockowner allocation failure

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484

CVE-2026-89484 is a NULL pointer dereference in the Linux kernel's lockd (Network Lock Manager) subsystem. The bug occurs when nlmclnt_find_lockowner() fails to allocate a lockowner, yet nlmclnt_locks_init_private() still installs NLM file lock operations. When the VFS subsequently tears down the...

EUVD-2026-76390

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484 lockd: fix NULL dereference on lockowner allocation failure

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89477

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

CVE-2026-89477 sctp: fix NULL deref on untransmitted RECONF completion

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

EUVD-2026-76383

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

CVE-2026-89477 sctp: fix NULL deref on untransmitted RECONF completion

In the Linux kernel, the following vulnerability has been resolved: sctp: fix NULL deref on untransmitted RECONF completion sctpprocessstrresetoutreq, sctpprocessstrresetaddstrmout and sctpprocessstrresetresp complete a pending stream reconfiguration request by stopping the reconf timer on the...

CVE-2026-89477

CVE-2026-89477 is a NULL pointer dereference in the Linux kernel's SCTP stream reconfiguration code. When a reconfiguration request is queued in asoc->strreset_chunk but not yet transmitted, chunk->transport remains NULL; three completion functions (sctp_process_strreset_outreq, sctp_proces...

CVE-2026-89466

CVE-2026-89466 is an out-of-bounds read in the Linux kernel's qcom_battmgr power supply driver (Qualcomm battery manager). The function qcom_battmgr_sc8280xp_strcpy() copies firmware-provided strings for model_number , serial_number , and oem_info without a null terminator when the firmware does ...

EUVD-2026-76372

In the Linux kernel, the following vulnerability has been resolved: power: supply: qcombattmgr: terminate the strings from firmware The qcombattmgrsc8280xpstrcpy takes a Pascal-style string when the firmware sends one. Otherwise it copies all BATTMGRSTRINGLEN bytes and leaves the destination...

CVE-2026-89460

CVE-2026-89460 affects the Linux kernel on s390 systems using the CPUMF (Command Processor Measurement Facility) PMU driver. The root cause is that per-CPU cpu_cf_events structures are allocated only for CPUs online at event-creation time. If a CPU is hotplugged online during a perf stat run with...

CVE-2026-89460 s390/cpum_cf: Handle CPU hotplug via prepare/dead callbacks

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460 s390/cpum_cf: Handle CPU hotplug via prepare/dead callbacks

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

CVE-2026-89460

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

EUVD-2026-76366

In the Linux kernel, the following vulnerability has been resolved: s390/cpumcf: Handle CPU hotplug via prepare/dead callbacks The command 'perf stat -e cycles -- ' crashes the kernel when CPUs are hotplug added during that run. Root cause is the allocation of struct cpucfevents at first event...

EUVD-2026-76363

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...

CVE-2026-89457 s390/dasd: Guard sysfs discipline callbacks against unallocated private data

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: Guard sysfs discipline callbacks against unallocated private data Several sysfs show/store handlers call a discipline callback that dereferences device-private, either directly or through the DASDDEFINEATTR macro. Duri...