ROOT-OS-UBUNTU-2204-CVE-2025-21881 CVE-2025-21881 in rootio-linux - Patched by Root

Root has patched CVE-2025-21881 in the rootio-linux package for Root:Ubuntu:22.04. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2025-21881 CVE-2025-21881 in rootio-linux - Patched by Root

Root has patched CVE-2025-21881 in the rootio-linux package for Root:Debian:11. Multiple fixed versions available...

Ubuntu: Security Advisory (USN-7801-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

AZL-69494 CVE-2025-21881 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: uprobes: Reject the shared zeropage in uprobewriteopcode We triggered the following crash in syzkaller tests: BUG: Bad page state in process syz.7.38 pfn:1eff3 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0...

CVE-2025-21881

In the Linux kernel, the following vulnerability has been resolved: uprobes: Reject the shared zeropage in uprobewriteopcode We triggered the following crash in syzkaller tests: BUG: Bad page state in process syz.7.38 pfn:1eff3 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0...

UBUNTU-CVE-2025-21881

In the Linux kernel, the following vulnerability has been resolved: uprobes: Reject the shared zeropage in uprobewriteopcode We triggered the following crash in syzkaller tests: BUG: Bad page state in process syz.7.38 pfn:1eff3 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0...

CVE-2025-21881

CVE-2025-21881 describes a Linux kernel vulnerability in the uprobes code path, specifically in uprobe_write_opcode() where a zero page (zeropage) is rejected but not properly accounted. The issue arises when a zero pfn is written to a PTE without increasing the RSS counter, causing the zero foli...