CVE-2023-54268 | THREATINT

Description

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.

PUBLISHED Reserved 2025-12-30 | Published 2025-12-30 | Updated 2025-12-30 | Assigner Linux

Product status

Default status

unaffected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before be646802b3dc408c4dc72a3ac32c3f4a0282414d

affected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before fd673079749bac97bb30f1461df079e6c8e86511

affected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before aee97eec77029270866c704f66cdf2881cbd2fe1

affected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before d7fff52c99d52f180d8bef95d8ed8fec6343889c

affected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before 4c088d30a72d9b8f9c6ae9362222942e4075cb00

affected

3ac7fe5a4aab409bd5674d0b070bce97f9d20872 (git) before eb799279fb1f9c63c520fe8c1c41cb9154252db6

affected

Default status

affected

2.6.26

affected

Any version before 2.6.26

unaffected

5.4.244 (semver)

unaffected

5.10.181 (semver)

unaffected

5.15.114 (semver)

unaffected

6.1.31 (semver)

unaffected

6.3.5 (semver)

unaffected

6.4 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/be646802b3dc408c4dc72a3ac32c3f4a0282414d

git.kernel.org/...c/fd673079749bac97bb30f1461df079e6c8e86511

git.kernel.org/...c/aee97eec77029270866c704f66cdf2881cbd2fe1

git.kernel.org/...c/d7fff52c99d52f180d8bef95d8ed8fec6343889c

git.kernel.org/...c/4c088d30a72d9b8f9c6ae9362222942e4075cb00

git.kernel.org/...c/eb799279fb1f9c63c520fe8c1c41cb9154252db6

cve.org (CVE-2023-54268)

nvd.nist.gov (CVE-2023-54268)

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