CVE-2026-74634

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

CVE-2026-74634

This vulnerability affects the Linux kernel ring-buffer subsystem. The root cause is that ring_buffer_subbuf_order_set() frees buffer pages even when resizing is disabled, leaving a non-consuming reader exposed to a use-after-free in rb_advance_iter(). The fix returns -EBUSY on resize_disabled, m...

CVE-2026-74634 ring-buffer: Prevent subbuf order change when resizing is disabled

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

EUVD-2026-64571

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

CVE-2026-74634 ring-buffer: Prevent subbuf order change when resizing is disabled

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ringbuffersubbuforderset frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free rbadvanceite...

CVE-2026-74633 tracing: Fix NULL pointer dereference in module event cache removal

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in module event cache removal A module-only event filter such as ":mod:foo" is cached with a NULL eventmod-match when foo has not been loaded. If a later write tries to remove a specific matc...

CVE-2026-74632 mm/huge_memory: fix huge_zero_pfn race

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

CVE-2026-74633 tracing: Fix NULL pointer dereference in module event cache removal

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in module event cache removal A module-only event filter such as ":mod:foo" is cached with a NULL eventmod-match when foo has not been loaded. If a later write tries to remove a specific matc...

CVE-2026-74632

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

CVE-2026-74633

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in module event cache removal A module-only event filter such as ":mod:foo" is cached with a NULL eventmod-match when foo has not been loaded. If a later write tries to remove a specific matc...

EUVD-2026-64569

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

EUVD-2026-64570

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix NULL pointer dereference in module event cache removal A module-only event filter such as ":mod:foo" is cached with a NULL eventmod-match when foo has not been loaded. If a later write tries to remove a specific matc...

CVE-2026-74633

CVE-2026-74633 is a NULL pointer dereference in the Linux kernel's ftrace tracing subsystem. When a module-only event filter (e.g., :mod:foo) is cached while the module is not yet loaded, event_mod->match remains NULL. A subsequent write attempting to remove a specific match from that module p...

CVE-2026-74632 mm/huge_memory: fix huge_zero_pfn race

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

CVE-2026-74632

CVE-2026-74632 is a race condition in the Linux kernel's mm/huge_memory subsystem affecting the reference-counted huge_zero_folio implementation. When a memory shrinker (shrink_huge_zero_folio_scan()) is preempted between zeroing huge_zero_refcount and writing the ~0UL sentinel to huge_zero_pfn, ...

CVE-2026-74631 net: smc: fix splice entry lifetime imbalance in smc_rx_splice

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

CVE-2026-74631

CVE-2026-74631 affects the Linux kernel net: smc subsystem, specifically the smc_rx_splice() function. The root cause is a splice entry lifetime imbalance : pages are passed to splice_to_pipe() before the references covering each entry's lifetime are taken. In the VM-backed RMB path, unqueued ent...

EUVD-2026-64568

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

CVE-2026-74631 net: smc: fix splice entry lifetime imbalance in smc_rx_splice

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...

CVE-2026-74631

In the Linux kernel, the following vulnerability has been resolved: net: smc: fix splice entry lifetime imbalance in smcrxsplice smcrxsplice passes pages to splicetopipe before taking the references that cover the lifetime of each splice entry. In the VM-backed RMB path, splicetopipe may drop...