page_table_walk

Capture the Flag in Physical Memory You've read about paging. The diagrams make sense. Four levels, 9 bits each, page frame, offset. Sure. But then you hit a challenge that requires actually walking page tables, and you realize you don't know it. You know about it. Big difference. What worked for...

CVE-2026-74524

A flaw was found in the Linux kernel. When performing memory hot-remove operations on systems using RISC-V architecture, an out-of-bounds page-table walk can occur. This issue arises because the system attempts to access memory outside of its designated boundaries, potentially leading to a kernel...

CVE-2026-72362

A flaw was found in the Linux kernel's drm/xe/pt module. This vulnerability arises when the page-table walk framework provides a null pointer for unpopulated entries, and the xeptzapptesentry function attempts to access this null pointer without prior validation. This improper handling can lead t...

CVE-2026-72358

A flaw was found in the Linux kernel's drm/xe/pt component. During page table walks for binding, specific functions xepthugeptepossible and xeptscan64K do not properly check if a Buffer Object BO has been purged. This oversight can lead to invalid access of an uninitialized cursor, potentially...

Linux Distros Unpatched Vulnerability : CVE-2026-72358

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: prevent invalid cursor access for purged BOs During a page table walk for binding...

Linux Distros Unpatched Vulnerability : CVE-2026-72362

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drm/xe/pt: Fix NULL pointer dereference in xeptzapptesentry The page-table walk framework may pass a NULL child pointer for unpopulated entries. xeptzapptesentr...

SUSE CVE-2026-74524

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

UBUNTU-CVE-2026-74524

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524

CVE-2026-74524 : In the Linux kernel (RISC‑V), a fix prevents an out‑of‑bounds page‑table walk during memory hot‑remove. When page‑table levels are folded (Sv48 Sv39), remove_pud_mapping/remove_p4d_mapping compute child bases with pud_offset(p4dp,0) / p4d_offset(pgd,0) and then add an index that ...

EUVD-2026-59717

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524 riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-74524 riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: Fix out-of-bounds page-table walk during memory hot-remove removepudmapping and removep4dmapping obtain a child table base with pudoffsetp4dp, 0 and p4doffsetpgd, 0, then add the index for addr. RISC-V folds page-table...

CVE-2026-72358

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: prevent invalid cursor access for purged BOs During a page table walk for binding, xeptstagebind explicitly skips initializing the xerescursor for purged BOs, treating them similarly to NULL VMAs by only setting the...

CVE-2026-72362

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xeptzapptesentry The page-table walk framework may pass a NULL child pointer for unpopulated entries. xeptzapptesentry called containerofchild before checking for NULL, then dereferenced...

UBUNTU-CVE-2026-72362

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xeptzapptesentry The page-table walk framework may pass a NULL child pointer for unpopulated entries. xeptzapptesentry called containerofchild before checking for NULL, then dereferenced...

UBUNTU-CVE-2026-72358

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: prevent invalid cursor access for purged BOs During a page table walk for binding, xeptstagebind explicitly skips initializing the xerescursor for purged BOs, treating them similarly to NULL VMAs by only setting the...

CVE-2026-72358

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: prevent invalid cursor access for purged BOs During a page table walk for binding, xeptstagebind explicitly skips initializing the xerescursor for purged BOs, treating them similarly to NULL VMAs by only setting the...