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CVE-2026-45971

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CVE-2026-45971

Published: May 27, 2026

Modified: May 27, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Limit bpf program signature size Practical BPF signatures are significantly smaller than KMALLOC_MAX_CACHE_SIZE Allowing larger sizes opens the door for abuse by passing excessive size values and forcing the kernel into expensive allocation paths (via kmalloc_large or vmalloc).

VendorProductVersions

Linux

Linux

affected
349271568303695f0ac3563af153d2b4542f6986 - < 5835a077c6f5c565d525eaca9fac01572b97a9b9
affected
349271568303695f0ac3563af153d2b4542f6986 - < eb8166c79097996396468a341de258a798789d36
affected
349271568303695f0ac3563af153d2b4542f6986 - < ea1535e28bb3773fc0b3cbd1f3842b808016990c

Linux

Linux

affected
6.18
unaffected
0 - < 6.18
unaffected
6.18.14 - <= 6.18.*
unaffected
6.19.4 - <= 6.19.*
unaffected
7.0 - <= *

References

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