CVE-2026-53333 is a vulnerability in Linux Kernel
Published on July 1, 2026
mm/mincore: handle non-swap entries before !CONFIG_SWAP guard
In the Linux kernel, the following vulnerability has been resolved:
mm/mincore: handle non-swap entries before !CONFIG_SWAP guard
mincore_swap() also fields migration/hwpoison entries (and shmem
swapin-error entries), which can exist on !CONFIG_SWAP builds when
CONFIG_MIGRATION or CONFIG_MEMORY_FAILURE is enabled. The
!IS_ENABLED(CONFIG_SWAP) guard ran before the non-swap-entry early return,
so mincore_pte_range() can spuriously WARN and report these pages
nonresident on !CONFIG_SWAP kernels.
Move the guard below the non-swap-entry check so only true swap entries
trip the WARN, and migration/hwpoison entries take the existing "uptodate
/ non-shmem" path.
Products Associated with CVE-2026-53333
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Affected Versions
Linux:- Version 1f2052755c152940c336918bd73d13d5468f548b and below a8f91ddf67f669f547bb9fb559738da6f8ee2cf3 is affected.
- Version 1f2052755c152940c336918bd73d13d5468f548b and below 3481d4372ae34243f7025925314385b852c50f7e is affected.
- Version 1f2052755c152940c336918bd73d13d5468f548b and below 0c25b8734367574e21aeb8468c2e522713134da7 is affected.
- Version 6.18 is affected.
- Before 6.18 is unaffected.
- Version 6.18.36, <= 6.18.* is unaffected.
- Version 7.0.13, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.