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Vulnerability · Published Dec 30, 2025 · Assigned by Linux

CVE-2023-54268debugobjects: Don't wake up kswapd from fill_pool()

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 89.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: debugobjects: Don't wake up kswapd from fill_pool() syzbot is reporting a lockdep warning in fill_pool() because the allocation from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM) and therefore tries to wake up kswapd, which acquires kswapd_wait::lock. Since fill_pool() might be called with arbitrary locks held, fill_pool() should not assume that acquiring kswapd_wait::lock is safe. Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for !__GFP_DIRECT_RECLAIM allocation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.37-1DEBIAN-CVE-2023-54268
Debian:13linux6.3.7-1DEBIAN-CVE-2023-54268
Debian:14linux6.3.7-1DEBIAN-CVE-2023-54268
Ubuntu:22.04:LTSlinux5.15.0-83.92UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-aws5.15.0-1044.49UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure5.15.0-1046.53UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1046.53.1UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gcp5.15.0-1041.49UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gke5.15.0-1041.46UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1027.32UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-ibm5.15.0-1037.40UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1039.45UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-kvm5.15.0-1041.46UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-83.92UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1032.32UBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1017.17UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1004.4UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oracle5.15.0-1042.48UBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-raspi5.15.0-1037.40UBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54268
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-54268

Affected products (as reported)

VendorProductVersions
Linux Linux 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before be646802b3dc408c4dc72a3ac32c3f4a0282414d3ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before fd673079749bac97bb30f1461df079e6c8e865113ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before aee97eec77029270866c704f66cdf2881cbd2fe13ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before d7fff52c99d52f180d8bef95d8ed8fec6343889c3ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before 4c088d30a72d9b8f9c6ae9362222942e4075cb003ac7fe5a4aab409bd5674d0b070bce97f9d20872 – before eb799279fb1f9c63c520fe8c1c41cb9154252db6
Linux Linux 2.6.26

References