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CVE-2026-80913— selinux: require every boolean value to be defined

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于SELinux布尔值计数与实际定义数量不一致，导致bool_val_to_struct数组存在空指针条目，遍历时可能导致空指针取消引用。

AI Predicted 7.8 Difficulty: Hard EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4d0ece18e648bd4362704fd087249ac697f2b7fb affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3938c8494d3c5d84a53fd7d1966ae9dde46cb5f8 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4dfb997c60f7951011d3dcbee926e3a7f80d8a76 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3161daa3f1e3ca68f8b2b8fa01720b5a8dcc6b40 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 740012aebdb8311332bf66e2aabf453ba73c2c45 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 42a7107f99d86a7524c37f108047dfa3db096ab5 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< ed901e88aa3fb3d5d7b0b52c2ee3073209df9bec affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a93d37a09b863810653f93d371fb197457d59deb affected
… +10 more rows
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I. Basic Information for CVE-2026-80913

Vulnerability Information
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Vulnerability Title
selinux: require every boolean value to be defined
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: selinux: require every boolean value to be defined p_bools.nprim comes from the policy image independently of how many booleans follow it, and cond_index_bool() fills bool_val_to_struct[] at value - 1, so a count larger than the values present leaves NULL entries. Every user of that array then walks it by index and dereferences each entry: cond_evaluate_expr() on the access-vector path, security_get_bools() and security_get_bool_value() behind selinuxfs, and security_set_bools(). A sparse class value is absorbed by policydb_class_isvalid() and its siblings; booleans have no such predicate, and no consumer that could use one. Reject a boolean value that no boolean defines, once, where the array is built. Conforming policies define every boolean they declare and are unaffected.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于SELinux布尔值计数与实际定义数量不一致，导致bool_val_to_struct数组存在空指针条目，遍历时可能导致空指针取消引用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 4d0ece18e648bd4362704fd087249ac697f2b7fb -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-80913

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III. Intelligence Information for CVE-2026-80913

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Patches & Fixes for CVE-2026-80913 (8)

Same Patch Batch · Linux · 2026-09-04 · 156 CVEs total

CVE-2026-80864 RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure
CVE-2026-80857 fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVE-2026-80858 fuse: publish io-uring queues with release semantics
CVE-2026-80859 fuse: fix missing barrier when checking io-uring readiness
CVE-2026-80860 fuse: fix race between interrupt and resend
CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible
CVE-2026-80862 nvme-tcp: fix usage of page_frag_cache
CVE-2026-80863 RDMA/rxe: Fix OOB in free_rd_atomic_resources()
CVE-2026-80869 ntfs: bound the attribute-list entry in ntfs_read_inode_mount()
CVE-2026-80873 KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
CVE-2026-80872 ALSA: hda/tas2781: Cancel async firmware request at unbind
CVE-2026-80871 crypto: xilinx-trng - Remove crypto_rng interface
CVE-2026-80870 drm/amdkfd: Validate CRIU-restored IDs before idr_alloc
CVE-2026-80867 alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
CVE-2026-80865 bpf: Add missing access_ok call to copy_user_syms
CVE-2026-80866 tipc: avoid busy looping in tipc_exit_net()
CVE-2026-80854 usb: gadget: f_tcm: keep port count until LUN teardown completes
CVE-2026-80868 ntfs3: Allocate iomap inline_data using alloc_page

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80913

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