CVE-2023-54268 (GCVE-0-2023-54268)
Vulnerability from cvelistv5
Published
2025-12-30 12:15
Modified
2025-12-30 12:15
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
Version: 3ac7fe5a4aab409bd5674d0b070bce97f9d20872
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{
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        "dateUpdated": "2025-12-30T12:15:59.598Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2023-54268",
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    "dateReserved": "2025-12-30T12:06:44.518Z",
    "dateUpdated": "2025-12-30T12:15:59.598Z",
    "state": "PUBLISHED"
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  }
}


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