Boot crash via premature initrd address translation
Published Dec 30, 2025 · Updated Dec 30, 2025
A boot-time address-translation flaw in Linux 5.17 through 6.1.19 and 6.2 through 6.2.6 allows attackers to cause an m68k kernel oops. In arch/m68k/kernel/setup_mm.c, setup_arch() calls phys_to_virt() for the initial ramdisk before paging_init() establishes m68k_memoffset and module_fixup(). Exposure requires an m68k platform with an initial ramdisk and physical memory whose base address is nonzero; the affected startup terminates in a kernel oops.
Summary
What happened
A boot-time address-translation flaw in Linux 5.17 through 6.1.19 and 6.2 through 6.2.6 allows attackers to cause an m68k kernel oops. In arch/m68k/kernel/setup_mm.c, setup_arch() calls phys_to_virt() for the initial ramdisk before paging_init() establishes m68k_memoffset and module_fixup(). Exposure requires an m68k platform with an initial ramdisk and physical memory whose base address is nonzero; the affected startup terminates in a kernel oops.
The record
- CVE
- CVE-2023-54167
- Published
- Dec 30, 2025
- Updated
- Dec 30, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 30, 2025CVE publishedPublication date reported by the CVE source.
- Dec 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=376e3fdecb0dcae216c0ac559cff066f460bf47b <58662cfb459150b9c0c22d20cddaea439b3844bd
- Affected versionversion=376e3fdecb0dcae216c0ac559cff066f460bf47b <ceb089e2337f810d3594d310953d9af4783f660a
- Affected versionversion=376e3fdecb0dcae216c0ac559cff066f460bf47b <d4b97925e87eb133e400fe4a482d750c74ce392f
- Affected versionversion=5.17
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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