CVE-2026-89506 RDMA/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Add UVERBSATTRUHW to UVERBSMETHODREGMR The original commit missed that three drivers mthca, irdma, siw have UHW data associated with regmr that cannot be passed through the ioctl. They also assume that the udata cann...

CVE-2026-89506 RDMA/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Add UVERBSATTRUHW to UVERBSMETHODREGMR The original commit missed that three drivers mthca, irdma, siw have UHW data associated with regmr that cannot be passed through the ioctl. They also assume that the udata cann...

CVE-2026-89506

CVE-2026-89506 affects the Linux kernel RDMA/uverbs subsystem. The root cause is a missing UVERBS_ATTR_UHW attribute in the UVERBS_METHOD_REG_MR ioctl definition. Three drivers—mthca , irdma , and siw —associate UHW data with reg_mr but assume the udata pointer is non-NULL. Because the attribute ...

CVE-2026-89505 RDMA/uverbs: Guard legacy bundles without method_elm

In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Guard legacy bundles without methodelm The legacy write path dispatches through a uverbsapiwritemethod, but the uverbsattrbundle passed to provider code does not have an ioctl method element. If malformed provider...

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 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...

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

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...

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...