{"id":"CVE-2025-38451","revision":"e8ba4b2ee2124bd59fc6e8af4a091e1d","records":[{"revision":"e8ba4b2ee2124bd59fc6e8af4a091e1d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-38451","aliases":[],"title":"md/md-bitmap: fix GPF in bitmap_get_stats()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/md-bitmap: fix GPF in bitmap_get_stats()\n\nThe commit message of commit 6ec1f0239485 (\"md/md-bitmap: fix stats\ncollection for external bitmaps\") states:\n\n    Remove the external bitmap check as the statistics should be\n    available regardless of bitmap storage location.\n\n    Return -EINVAL only for invalid bitmap with no storage (neither in\n    superblock nor in external file).\n\nBut, the code does not adhere to the above, as it does only check for\na valid super-block for \"internal\" bitmaps. Hence, we observe:\n\nOops: GPF, probably for non-canonical address 0x1cd66f1f40000028\nRIP: 0010:bitmap_get_stats+0x45/0xd0\nCall Trace:\n\n seq_read_iter+0x2b9/0x46a\n seq_read+0x12f/0x180\n proc_reg_read+0x57/0xb0\n vfs_read+0xf6/0x380\n ksys_read+0x6d/0xf0\n do_syscall_64+0x8c/0x1b0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nWe fix this by checking the existence of a super-block for both the\ninternal and external case.","state":0,"publishedAt":"2025-07-25T15:27:32.045+00:00","modifiedAt":"2026-10-15T01:07:15.964+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                        \"drivers/md/md-bitmap.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"065f4b1cd41d03702426af44193894b925607073\",\n                            \"lessThan\": \"a23b16ba3274961494f5ad236345d238364349ff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0b5390aeaa85eb2f15e0e2ea0731c0995285db5e\",\n                            \"lessThan\": \"3d82a729530bd2110ba66e4a1f73461c776edec2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"eeeba7f43ae27835718a5f5ad6552a8983e75201\",\n                            \"lessThan\": \"3e0542701b37aa25b025d8531583458e4f014c2e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6ec1f0239485028445d213d91cfee5242f3211ba\",\n                            \"lessThan\": \"a18f9b08c70e10ea3a897058fee8a4f3b4c146ec\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6ec1f0239485028445d213d91cfee5242f3211ba\",\n                            \"lessThan\": \"c17fb542dbd1db745c9feac15617056506dd7195\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"896a6fbefc9050cf940ed57947eda6dc23aa58b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.1.135\",\n                            \"lessThan\": \"6.1.146\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.88\",\n                            \"lessThan\": \"6.6.99\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.25\",\n                            \"lessThan\": \"6.12.39\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.4\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\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                        \"drivers/md/md-bitmap.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.146\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.99\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.39\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15.7\",\n                            \"lessThanOrEqual\": \"6.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.16\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a23b16ba3274961494f5ad236345d238364349ff","https://git.kernel.org/stable/c/3d82a729530bd2110ba66e4a1f73461c776edec2","https://git.kernel.org/stable/c/3e0542701b37aa25b025d8531583458e4f014c2e","https://git.kernel.org/stable/c/a18f9b08c70e10ea3a897058fee8a4f3b4c146ec","https://git.kernel.org/stable/c/c17fb542dbd1db745c9feac15617056506dd7195"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38451","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-38451","identifiers":["CVE-2025-38451"]},"retained":false,"historicalAffected":[]}],"coverage":[]}