CVE-2026-74601

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

EUVD-2026-64538

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

CVE-2026-74601 ring-buffer: Use current_context for safe per-CPU buffer swap

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...

EUVD-2026-64539

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

CVE-2026-74601

CVE-2026-74601 affects the Linux kernel tracing ring-buffer subsystem. The ring_buffer_swap_cpu() function relies on a per-CPU committing counter to determine whether a buffer is actively being written to before performing a swap. However, the counter can temporarily drop to zero during rb_move_t...

CVE-2026-74602 ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Initialise reader page order in rballocatecpubuffer In rballocatecpubuffer, bpage-order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGESIZE if when freed: freebufferpage...

CVE-2026-74600

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74600

This vulnerability affects the Linux kernel in the mm/page_table_check subsystem. The functions page_table_check_set() and page_table_check_clear() account mappings based on PageAnon(), but shared zero-page PTEs and huge zero PMDs are special mappings that can be incorrectly accounted as file-bac...

EUVD-2026-64537

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74600 mm/page_table_check: skip special zero mappings

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74600 mm/page_table_check: skip special zero mappings

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74599

CVE-2026-74599 is a race condition in the Linux kernel 's mm/ptdump subsystem. Previous fixes established that kernel page table freeing occurs while holding an mmap read lock on init_mm , but x86 and arm64 architectures can perform a ptdump over a non-init_mm via ptdump_walk_pgd(). Since kernel ...

EUVD-2026-64536

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74599 mm/ptdump: always stabilise against page table freeing using init_mm

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74599

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74599 mm/ptdump: always stabilise against page table freeing using init_mm

In the Linux kernel, the following vulnerability has been resolved: mm/ptdump: always stabilise against page table freeing using initmm Previous commits have established the invariant that kernel page table freeing is performed while an mmap read lock on initmm is held, which fixes races between...

CVE-2026-74597

This vulnerability affects the Linux kernel 's ip6_tunnel module, specifically the ip6ip6_err() function. When processing an outer IPv6 ICMP error packet, the function clones and pulls the skb to the quoted inner IPv6 packet but fails to clear skb2->cb[], leaving the outer packet's inet6_skb_p...

CVE-2026-74598

CVE-2026-74598 is an out-of-bounds read in the Linux kernel's IPv6 stack, specifically in rt6_route_rcv() handling of the Route Information option (RFC 4191). Both length checks are off by one: the code accepts length >= 2 and length >= 1 where RFC 4191 requires stricter bounds. A remote at...

CVE-2026-74598 ipv6: fix Route Information option length validation

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix Route Information option length validation rt6routercv validates the Route Information option RFC 4191 length against the prefix length, but both checks are off by one. rinfo-length is the ND option length in units of 8...