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Vulnerable Software

Vulnerability Details CVE-2026-31554

In the Linux kernel, the following vulnerability has been resolved: futex: Require sys_futex_requeue() to have identical flags Nicholas reported that his LLM found it was possible to create a UaF when sys_futex_requeue() is used with different flags. The initial motivation for allowing different flags was the variable sized futex, but since that hasn't been merged (yet), simply mandate the flags are identical, as is the case for the old style sys_futex() requeue operations.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.002

EPSS Ranking 5.8%

CVSS Severity

CVSS v3 Score 7.8

References

Products affected by CVE-2026-31554

Linux » Linux Kernel » Version: 6.13

cpe:2.3:o:linux:linux_kernel:6.13
Linux » Linux Kernel » Version: 6.13.1

cpe:2.3:o:linux:linux_kernel:6.13.1
Linux » Linux Kernel » Version: 6.13.10

cpe:2.3:o:linux:linux_kernel:6.13.10
Linux » Linux Kernel » Version: 6.13.11

cpe:2.3:o:linux:linux_kernel:6.13.11
Linux » Linux Kernel » Version: 6.13.12

cpe:2.3:o:linux:linux_kernel:6.13.12
Linux » Linux Kernel » Version: 6.13.2

cpe:2.3:o:linux:linux_kernel:6.13.2
Linux » Linux Kernel » Version: 6.13.3

cpe:2.3:o:linux:linux_kernel:6.13.3
Linux » Linux Kernel » Version: 6.13.4

cpe:2.3:o:linux:linux_kernel:6.13.4
Linux » Linux Kernel » Version: 6.13.5

cpe:2.3:o:linux:linux_kernel:6.13.5
Linux » Linux Kernel » Version: 6.13.6

cpe:2.3:o:linux:linux_kernel:6.13.6
Linux » Linux Kernel » Version: 6.13.7

cpe:2.3:o:linux:linux_kernel:6.13.7
Linux » Linux Kernel » Version: 6.13.8

cpe:2.3:o:linux:linux_kernel:6.13.8
Linux » Linux Kernel » Version: 6.13.9

cpe:2.3:o:linux:linux_kernel:6.13.9
Linux » Linux Kernel » Version: 6.14

cpe:2.3:o:linux:linux_kernel:6.14
Linux » Linux Kernel » Version: 6.14.1

cpe:2.3:o:linux:linux_kernel:6.14.1
Linux » Linux Kernel » Version: 6.14.10

cpe:2.3:o:linux:linux_kernel:6.14.10
Linux » Linux Kernel » Version: 6.14.11

cpe:2.3:o:linux:linux_kernel:6.14.11
Linux » Linux Kernel » Version: 6.14.2

cpe:2.3:o:linux:linux_kernel:6.14.2
Linux » Linux Kernel » Version: 6.14.3

cpe:2.3:o:linux:linux_kernel:6.14.3
Linux » Linux Kernel » Version: 6.14.4

cpe:2.3:o:linux:linux_kernel:6.14.4
Linux » Linux Kernel » Version: 6.14.5

cpe:2.3:o:linux:linux_kernel:6.14.5
Linux » Linux Kernel » Version: 6.14.6

cpe:2.3:o:linux:linux_kernel:6.14.6
Linux » Linux Kernel » Version: 6.14.7

cpe:2.3:o:linux:linux_kernel:6.14.7
Linux » Linux Kernel » Version: 6.14.8

cpe:2.3:o:linux:linux_kernel:6.14.8
Linux » Linux Kernel » Version: 6.14.9

cpe:2.3:o:linux:linux_kernel:6.14.9
Linux » Linux Kernel » Version: 6.15

cpe:2.3:o:linux:linux_kernel:6.15
Linux » Linux Kernel » Version: 6.15.1

cpe:2.3:o:linux:linux_kernel:6.15.1
Linux » Linux Kernel » Version: 6.15.10

cpe:2.3:o:linux:linux_kernel:6.15.10
Linux » Linux Kernel » Version: 6.15.11

cpe:2.3:o:linux:linux_kernel:6.15.11
Linux » Linux Kernel » Version: 6.15.2

cpe:2.3:o:linux:linux_kernel:6.15.2
Linux » Linux Kernel » Version: 6.15.3

cpe:2.3:o:linux:linux_kernel:6.15.3
Linux » Linux Kernel » Version: 6.15.4

cpe:2.3:o:linux:linux_kernel:6.15.4
Linux » Linux Kernel » Version: 6.15.5

cpe:2.3:o:linux:linux_kernel:6.15.5
Linux » Linux Kernel » Version: 6.15.6

cpe:2.3:o:linux:linux_kernel:6.15.6
Linux » Linux Kernel » Version: 6.15.7

cpe:2.3:o:linux:linux_kernel:6.15.7
Linux » Linux Kernel » Version: 6.15.8

cpe:2.3:o:linux:linux_kernel:6.15.8
Linux » Linux Kernel » Version: 6.15.9

cpe:2.3:o:linux:linux_kernel:6.15.9
Linux » Linux Kernel » Version: 6.16

cpe:2.3:o:linux:linux_kernel:6.16
Linux » Linux Kernel » Version: 6.16.1

cpe:2.3:o:linux:linux_kernel:6.16.1
Linux » Linux Kernel » Version: 6.16.10

cpe:2.3:o:linux:linux_kernel:6.16.10
Linux » Linux Kernel » Version: 6.16.11

cpe:2.3:o:linux:linux_kernel:6.16.11
Linux » Linux Kernel » Version: 6.16.12

cpe:2.3:o:linux:linux_kernel:6.16.12
Linux » Linux Kernel » Version: 6.16.2

cpe:2.3:o:linux:linux_kernel:6.16.2
Linux » Linux Kernel » Version: 6.16.3

cpe:2.3:o:linux:linux_kernel:6.16.3
Linux » Linux Kernel » Version: 6.16.4

cpe:2.3:o:linux:linux_kernel:6.16.4
Linux » Linux Kernel » Version: 6.16.5

cpe:2.3:o:linux:linux_kernel:6.16.5
Linux » Linux Kernel » Version: 6.16.6

cpe:2.3:o:linux:linux_kernel:6.16.6
Linux » Linux Kernel » Version: 6.16.7

cpe:2.3:o:linux:linux_kernel:6.16.7
Linux » Linux Kernel » Version: 6.16.8

cpe:2.3:o:linux:linux_kernel:6.16.8
Linux » Linux Kernel » Version: 6.16.9

cpe:2.3:o:linux:linux_kernel:6.16.9
Linux » Linux Kernel » Version: 6.17

cpe:2.3:o:linux:linux_kernel:6.17
Linux » Linux Kernel » Version: 6.17.1

cpe:2.3:o:linux:linux_kernel:6.17.1
Linux » Linux Kernel » Version: 6.17.10

cpe:2.3:o:linux:linux_kernel:6.17.10
Linux » Linux Kernel » Version: 6.17.11

cpe:2.3:o:linux:linux_kernel:6.17.11
Linux » Linux Kernel » Version: 6.17.12

cpe:2.3:o:linux:linux_kernel:6.17.12
Linux » Linux Kernel » Version: 6.17.13

cpe:2.3:o:linux:linux_kernel:6.17.13
Linux » Linux Kernel » Version: 6.17.2

cpe:2.3:o:linux:linux_kernel:6.17.2
Linux » Linux Kernel » Version: 6.17.3

cpe:2.3:o:linux:linux_kernel:6.17.3
Linux » Linux Kernel » Version: 6.17.4

cpe:2.3:o:linux:linux_kernel:6.17.4
Linux » Linux Kernel » Version: 6.17.5

cpe:2.3:o:linux:linux_kernel:6.17.5
Linux » Linux Kernel » Version: 6.17.6

cpe:2.3:o:linux:linux_kernel:6.17.6
Linux » Linux Kernel » Version: 6.17.7

cpe:2.3:o:linux:linux_kernel:6.17.7
Linux » Linux Kernel » Version: 6.17.8

cpe:2.3:o:linux:linux_kernel:6.17.8
Linux » Linux Kernel » Version: 6.17.9

cpe:2.3:o:linux:linux_kernel:6.17.9
Linux » Linux Kernel » Version: 6.18

cpe:2.3:o:linux:linux_kernel:6.18
Linux » Linux Kernel » Version: 6.18.1

cpe:2.3:o:linux:linux_kernel:6.18.1
Linux » Linux Kernel » Version: 6.18.10

cpe:2.3:o:linux:linux_kernel:6.18.10
Linux » Linux Kernel » Version: 6.18.11

cpe:2.3:o:linux:linux_kernel:6.18.11
Linux » Linux Kernel » Version: 6.18.13

cpe:2.3:o:linux:linux_kernel:6.18.13
Linux » Linux Kernel » Version: 6.18.14

cpe:2.3:o:linux:linux_kernel:6.18.14
Linux » Linux Kernel » Version: 6.18.16

cpe:2.3:o:linux:linux_kernel:6.18.16
Linux » Linux Kernel » Version: 6.18.17

cpe:2.3:o:linux:linux_kernel:6.18.17
Linux » Linux Kernel » Version: 6.18.18

cpe:2.3:o:linux:linux_kernel:6.18.18
Linux » Linux Kernel » Version: 6.18.19

cpe:2.3:o:linux:linux_kernel:6.18.19
Linux » Linux Kernel » Version: 6.18.2

cpe:2.3:o:linux:linux_kernel:6.18.2
Linux » Linux Kernel » Version: 6.18.20

cpe:2.3:o:linux:linux_kernel:6.18.20
Linux » Linux Kernel » Version: 6.18.3

cpe:2.3:o:linux:linux_kernel:6.18.3
Linux » Linux Kernel » Version: 6.18.4

cpe:2.3:o:linux:linux_kernel:6.18.4
Linux » Linux Kernel » Version: 6.18.5

cpe:2.3:o:linux:linux_kernel:6.18.5
Linux » Linux Kernel » Version: 6.18.6

cpe:2.3:o:linux:linux_kernel:6.18.6
Linux » Linux Kernel » Version: 6.18.7

cpe:2.3:o:linux:linux_kernel:6.18.7
Linux » Linux Kernel » Version: 6.18.8

cpe:2.3:o:linux:linux_kernel:6.18.8
Linux » Linux Kernel » Version: 6.18.9

cpe:2.3:o:linux:linux_kernel:6.18.9
Linux » Linux Kernel » Version: 6.19

cpe:2.3:o:linux:linux_kernel:6.19
Linux » Linux Kernel » Version: 6.19.1

cpe:2.3:o:linux:linux_kernel:6.19.1
Linux » Linux Kernel » Version: 6.19.10

cpe:2.3:o:linux:linux_kernel:6.19.10
Linux » Linux Kernel » Version: 6.19.3

cpe:2.3:o:linux:linux_kernel:6.19.3
Linux » Linux Kernel » Version: 6.19.4

cpe:2.3:o:linux:linux_kernel:6.19.4
Linux » Linux Kernel » Version: 6.19.6

cpe:2.3:o:linux:linux_kernel:6.19.6
Linux » Linux Kernel » Version: 6.19.7

cpe:2.3:o:linux:linux_kernel:6.19.7
Linux » Linux Kernel » Version: 6.19.8

cpe:2.3:o:linux:linux_kernel:6.19.8
Linux » Linux Kernel » Version: 6.19.9

cpe:2.3:o:linux:linux_kernel:6.19.9
Linux » Linux Kernel » Version: 6.7

cpe:2.3:o:linux:linux_kernel:6.7
Linux » Linux Kernel » Version: 7.0

cpe:2.3:o:linux:linux_kernel:7.0

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Vulnerable Software

Vulnerability Details CVE-2026-31554

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