CVE-2026-98287

The Linux kernel contains a vulnerability in the pppoatm component where the pppoatm_send() function fails to ensure the skb header is writable when performing LLC encapsulation. While standard packets use skb_cow_head(), packets arriving via PPP channel bridging (PPPIOCBRIDGECHAN) bypass this ch...

CVE-2026-98285

The Linux kernel contains a vulnerability in the net: bridge: vlan component where switchdev could prevent vlan deletion and trigger errors in __vlan_del. This flaw can lead to inconsistent states , memory leaks , and a NULL pointer dereference during bridge flushing. The fix involves logging the...

CVE-2026-98285 net: bridge: vlan: fix bugs caused by switchdev deletion errors

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix bugs caused by switchdev deletion errors Allowing switchdev to prevent vlan deletion and error out in vlandel could cause multiple different issues - inconsistent state, memory leaks when flushing, NULL...

CVE-2026-98285 net: bridge: vlan: fix bugs caused by switchdev deletion errors

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix bugs caused by switchdev deletion errors Allowing switchdev to prevent vlan deletion and error out in vlandel could cause multiple different issues - inconsistent state, memory leaks when flushing, NULL...

EUVD-2026-93213

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix bugs caused by switchdev deletion errors Allowing switchdev to prevent vlan deletion and error out in vlandel could cause multiple different issues - inconsistent state, memory leaks when flushing, NULL...

CVE-2026-98284

The Linux kernel contains a vulnerability where netlink_realloc_groups() uses krealloc() to reallocate the nlk->groups bitmap. If the new size falls into a different kmalloc bucket , the old bitmap is freed immediately while lockless readers—specifically sk_diag_dump_groups() and netlink_nativ...

EUVD-2026-93212

In the Linux kernel, the following vulnerability has been resolved: netlink: do not free nlk-groups while lockless readers can use it netlinkreallocgroups uses krealloc under netlinktablegrab. Whenever NLGRPSZgroups lands in a different kmalloc bucket, the old bitmap is freed immediately. Two...

CVE-2026-98284 netlink: do not free nlk->groups while lockless readers can use it

In the Linux kernel, the following vulnerability has been resolved: netlink: do not free nlk-groups while lockless readers can use it netlinkreallocgroups uses krealloc under netlinktablegrab. Whenever NLGRPSZgroups lands in a different kmalloc bucket, the old bitmap is freed immediately. Two...

CVE-2026-98284 netlink: do not free nlk->groups while lockless readers can use it

In the Linux kernel, the following vulnerability has been resolved: netlink: do not free nlk-groups while lockless readers can use it netlinkreallocgroups uses krealloc under netlinktablegrab. Whenever NLGRPSZgroups lands in a different kmalloc bucket, the old bitmap is freed immediately. Two...

CVE-2026-98283

The Linux kernel contains a use-after-free vulnerability in the KVM subsystem specifically for PPC: Book3S HV hardware. The issue exists in kvmhv_emulate_tlbie_all_lpid(), where the function iterates the nested-guest IDR and drops the mmu_lock without holding a reference on the kvm_nested_guest p...

EUVD-2026-93211

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: fix use-after-free in kvmhvemulatetlbiealllpid kvmhvemulatetlbiealllpid iterates the nested-guest IDR and drops mmulock before calling kvmhvemulatetlbielpid, but does not hold a reference on the kvmnestedgues...

CVE-2026-98283 KVM: PPC: Book3S HV: fix use-after-free in kvmhv_emulate_tlbie_all_lpid()

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: fix use-after-free in kvmhvemulatetlbiealllpid kvmhvemulatetlbiealllpid iterates the nested-guest IDR and drops mmulock before calling kvmhvemulatetlbielpid, but does not hold a reference on the kvmnestedgues...

EUVD-2026-93210

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the overflow validation in iommutcecheckioba The commit b1af23d836f8 "KVM: PPC: iommu: Unify TCE checking" unified IOBA parameter checking across KVM and VFIO into iommutcecheckioba. While doing so, the passed ...

CVE-2026-98282 powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the overflow validation in iommutcecheckioba The commit b1af23d836f8 "KVM: PPC: iommu: Unify TCE checking" unified IOBA parameter checking across KVM and VFIO into iommutcecheckioba. While doing so, the passed ...

CVE-2026-98282 powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba

In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the overflow validation in iommutcecheckioba The commit b1af23d836f8 "KVM: PPC: iommu: Unify TCE checking" unified IOBA parameter checking across KVM and VFIO into iommutcecheckioba. While doing so, the passed ...

CVE-2026-98282

The Linux kernel contains a vulnerability in the powerpc/iommu component related to iommu_tce_check_ioba. The issue arose because a previous commit unified IOBA parameter checking but ignored the npages argument, using a constant value of '1' instead. This omission could lead to an arithmetic ove...

CVE-2026-98281 futex: Also allocate private hash on vfork()

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

EUVD-2026-93209

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

CVE-2026-98281

The Linux kernel contains a vulnerability where a private hash must be allocated during a vfork() system call, similar to other CLONE_VM users. This is necessary because it is feasible to access the mm (memory management) through vfork(). The issue specifically requires ensuring that (private) fu...

CVE-2026-98281 futex: Also allocate private hash on vfork()

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...