{"id":"CVE-2025-22045","revision":"fc8efc5dd2ae4169bb45d60ddf996a7a","records":[{"revision":"fc8efc5dd2ae4169bb45d60ddf996a7a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-22045","aliases":[],"title":"x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Fix flush_tlb_range() when used for zapping normal PMDs\n\nOn the following path, flush_tlb_range() can be used for zapping normal\nPMD entries (PMD entries that point to page tables) together with the PTE\nentries in the pointed-to page table:\n\n    collapse_pte_mapped_thp\n      pmdp_collapse_flush\n        flush_tlb_range\n\nThe arm64 version of flush_tlb_range() has a comment describing that it can\nbe used for page table removal, and does not use any last-level\ninvalidation optimizations. Fix the X86 version by making it behave the\nsame way.\n\nCurrently, X86 only uses this information for the following two purposes,\nwhich I think means the issue doesn't have much impact:\n\n - In native_flush_tlb_multi() for checking if lazy TLB CPUs need to be\n   IPI'd to avoid issues with speculative page table walks.\n - In Hyper-V TLB paravirtualization, again for lazy TLB stuff.\n\nThe patch \"x86/mm: only invalidate final translations with INVLPGB\" which\nis currently under review (see\n<https://lore.kernel.org/all/20241230175550.4046587-13-riel@surriel.com/>)\nwould probably be making the impact of this a lot worse.","state":0,"publishedAt":"2025-04-16T14:12:05.849+00:00","modifiedAt":"2026-10-15T21:51:57.12+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/include/asm/tlbflush.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"618d5612ecb7bfc1c85342daafeb2b47e29e77a3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"556d446068f90981e5d71ca686bdaccdd545d491\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"0708fd6bd8161871bfbadced2ca4319b84ab44fe\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"7085895c59e4057ffae17f58990ccb630087d0d2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"93224deb50a8d20df3884f3672ce9f982129aa50\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"320ac1af4c0bdb92c864dc9250d1329234820edf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"016c4d92cd16f569c6485ae62b076c1a4b779536\",\n                            \"lessThan\": \"3ef938c3503563bfc2ac15083557f880d29c2e64\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/x86/include/asm/tlbflush.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.20\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.20\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.292\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.236\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.180\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.134\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.87\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.23\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.13.11\",\n                            \"lessThanOrEqual\": \"6.13.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.2\",\n                            \"lessThanOrEqual\": \"6.14.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/618d5612ecb7bfc1c85342daafeb2b47e29e77a3","https://git.kernel.org/stable/c/556d446068f90981e5d71ca686bdaccdd545d491","https://git.kernel.org/stable/c/0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1","https://git.kernel.org/stable/c/0708fd6bd8161871bfbadced2ca4319b84ab44fe","https://git.kernel.org/stable/c/7085895c59e4057ffae17f58990ccb630087d0d2","https://git.kernel.org/stable/c/93224deb50a8d20df3884f3672ce9f982129aa50","https://git.kernel.org/stable/c/320ac1af4c0bdb92c864dc9250d1329234820edf","https://git.kernel.org/stable/c/78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be","https://git.kernel.org/stable/c/3ef938c3503563bfc2ac15083557f880d29c2e64"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-22045","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-22045","identifiers":["CVE-2025-22045"]},"retained":false,"historicalAffected":[]}],"coverage":[]}