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CVE-2026-53333— mm/mincore: handle non-swap entries before !CONFIG_SWAP guard

AI Predicted 4.3 Difficulty: Trivial EPSS 0.15% · P5

Possible ATT&CK Techniques 1AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux1f2052755c152940c336918bd73d13d5468f548b< a8f91ddf67f669f547bb9fb559738da6f8ee2cf3affected
1f2052755c152940c336918bd73d13d5468f548b< 3481d4372ae34243f7025925314385b852c50f7eaffected
1f2052755c152940c336918bd73d13d5468f548b< 0c25b8734367574e21aeb8468c2e522713134da7affected
6.18affected
< 6.18unaffected
6.18.36≤ 6.18.*unaffected
7.0.13≤ 7.0.*unaffected
7.1≤ *unaffected
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I. Basic Information for CVE-2026-53333

Vulnerability Information
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Vulnerability Title
mm/mincore: handle non-swap entries before !CONFIG_SWAP guard
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 6.18版本存在安全漏洞，该漏洞源于mincore_swap()函数在处理非交换条目时未正确检查!CONFIG_SWAP保护，可能导致报告页面非驻留状态。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 1f2052755c152940c336918bd73d13d5468f548b ~ a8f91ddf67f669f547bb9fb559738da6f8ee2cf3 -
LinuxLinux 6.18 -

II. Public POCs for CVE-2026-53333

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III. Intelligence Information for CVE-2026-53333

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Patches & Fixes for CVE-2026-53333 (2)

Same Patch Batch · Linux · 2026-07-01 · 31 CVEs total

CVE-2026-53342arm64: mm: call pagetable dtor when freeing hot-removed page tables
CVE-2026-53326debugobjects: Don't call fill_pool() in early boot hardirq context
CVE-2026-53327debugobjects: Do not fill_pool() if pi_blocked_on
CVE-2026-53328sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()
CVE-2026-53329drm/amd/display: Use krealloc_array() in dal_vector_reserve()
CVE-2026-53330drm/amd/display: Fix out-of-bounds read in dp_get_eq_aux_rd_interval()
CVE-2026-53331slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock
CVE-2026-53332slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd
CVE-2026-53334mm/damon/reclaim: handle ctx allocation failure
CVE-2026-53335mm/damon/lru_sort: handle ctx allocation failure
CVE-2026-53336nvmem: layouts: onie-tlv: fix hang on unknown types
CVE-2026-53337net: bonding: fix NULL pointer dereference in bond_do_ioctl()
CVE-2026-53338net: airoha: Add NULL check for of_reserved_mem_lookup() in airoha_qdma_init_hfwd_queues()
CVE-2026-53340i2c: imx: fix clock and pinctrl state inconsistency in runtime PM
CVE-2026-53339i2c: qcom-cci: Fix NULL pointer dereference in cci_remove()
CVE-2026-53356drm/i915/gem: Fix phys BO pread/pwrite with offset
CVE-2026-53341fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
CVE-2026-53343ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow
CVE-2026-53344pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init
CVE-2026-53345KVM: Don't WARN if memory is dirtied without a vCPU when the VM is dying

Showing top 20 of 31 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53333

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