CVE-2023-54268
debugobjects: Don't wake up kswapd from fill_pool()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 30, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < be646802b3dc408c4dc72a3ac32c3f4a0282414d 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < fd673079749bac97bb30f1461df079e6c8e86511 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < aee97eec77029270866c704f66cdf2881cbd2fe1 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < d7fff52c99d52f180d8bef95d8ed8fec6343889c 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < 4c088d30a72d9b8f9c6ae9362222942e4075cb00 3ac7fe5a4aab409bd5674d0b070bce97f9d20872 < eb799279fb1f9c63c520fe8c1c41cb9154252db6
Linux / Linux
2.6.26
References
git.kernel.org: https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d git.kernel.org: https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511 git.kernel.org: https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1 git.kernel.org: https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c git.kernel.org: https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00 git.kernel.org: https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6