Kernel crash via EROFS buffer-growth cleanup
Published Sep 13, 2024 · Updated May 11, 2026
Out-of-bounds access in Linux kernel 6.10 through 6.10.7 and 6.11-rc1 through 6.11-rc4 allows local users to crash the kernel. When z_erofs_gbuf_growsize() partially fails, cleanup compares newly allocated pages against an older gbuf->pages array that can be too small, causing a null dereference or out-of-bounds access. Reachability requires a partial memory-allocation failure while growing the global EROFS buffer; the record establishes a service interrupt but not attacker-controlled memory access.
Summary
What happened
Out-of-bounds access in Linux kernel 6.10 through 6.10.7 and 6.11-rc1 through 6.11-rc4 allows local users to crash the kernel. When z_erofs_gbuf_growsize() partially fails, cleanup compares newly allocated pages against an older gbuf->pages array that can be too small, causing a null dereference or out-of-bounds access. Reachability requires a partial memory-allocation failure while growing the global EROFS buffer; the record establishes a service interrupt but not attacker-controlled memory access.
The record
- CVE
- CVE-2024-46688
- Published
- Sep 13, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 13, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record 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=6.10
- Affected versionversion=d6db47e571dcaecaeaafa8840d00ae849ae3907b <0005e01e1e875c5e27130c5e2ed0189749d1e08a
- Affected versionversion=d6db47e571dcaecaeaafa8840d00ae849ae3907b <49c0e081998008cde0c872c0ff9affa1ece4b878
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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