EUVD-2026-64572

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

CVE-2026-74635

CVE-2026-74635 is an out-of-bounds read in the Linux kernel's fbdev subsystem, specifically in bit_cursor() (drivers/video/fbdev/core/bitblit.c). The function indexes font glyph data using a value from the screen buffer without bounds-checking it against the font's glyph count. A local user can t...

CVE-2026-74635 fbdev: bitblit: bound-check glyph index in bit_cursor()

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

CVE-2026-74635

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

CVE-2026-74635 fbdev: bitblit: bound-check glyph index in bit_cursor()

In the Linux kernel, the following vulnerability has been resolved: fbdev: bitblit: bound-check glyph index in bitcursor bitcursor fetches the glyph under the cursor with c = scrreadwvcpos; src = vcfont.data + c & charmask w height; where charmask is 0x1ff when vchifontmask is set. The screen...

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...

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

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...

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, ...