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Vulnerability · Published Dec 24, 2025 · Assigned by Linux

CVE-2023-54146x86/kexec: Fix double-free of elf header buffer

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 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 90.2% 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: x86/kexec: Fix double-free of elf header buffer After b3e34a47f989 ("x86/kexec: fix memory leak of elf header buffer"), freeing image->elf_headers in the error path of crash_load_segments() is not needed because kimage_file_post_load_cleanup() will take care of that later. And not clearing it could result in a double-free. Drop the superfluous vfree() call at the error path of crash_load_segments().

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.7-1DEBIAN-CVE-2023-54146
Debian:13linux6.1.7-1DEBIAN-CVE-2023-54146
Debian:14linux6.1.7-1DEBIAN-CVE-2023-54146
Ubuntu:22.04:LTSlinux5.15.0-69.76UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-aws5.15.0-1033.37UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure5.15.0-1035.42UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1035.42.1UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gcp5.15.0-1031.38UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gke5.15.0-1030.35UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1017.22UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-ibm5.15.0-1027.30UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1027.32UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-kvm5.15.0-1030.35UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-69.76UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1023.23UBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oracle5.15.0-1032.38UBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-raspi5.15.0-1026.28UBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-54146
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-54146

Affected products (as reported)

VendorProductVersions
Linux Linux 23cf39dccf7653650701a6f39b119e9116a27f1a – before 4c71a552b97fb4f46eb300224434fe56fcf4f2548765a423a87d74ef24ea02b43b2728fe4039f248 – before 554a880a1fff46dd5a355dec21cd77d542a0ddf2b3e34a47f98974d0844444c5121aaff123004e57 – before fbdbf8ac333d3d47c0d9ea81d7d445654431d100b3e34a47f98974d0844444c5121aaff123004e57 – before 5bd3c7abeb69fb4133418b846a1c6dc11313d6f0b3e34a47f98974d0844444c5121aaff123004e57 – before d00dd2f2645dca04cf399d8fc692f3f69b6dd996115ee42a4c2f26ba2b4ace2668a3f004621f6833f675e3a9189d84a9324ab45b0cb19906c2bc8fcb5.15.46 – before 5.15.87
Linux Linux 5.19

References