{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71139", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.656Z", "datePublished": "2026-01-14T15:07:52.658Z", "dateUpdated": "2026-01-14T15:07:52.658Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-14T15:07:52.658Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkernel/kexec: fix IMA when allocation happens in CMA area\n\n*** Bug description ***\n\nWhen I tested kexec with the latest kernel, I ran into the following warning:\n\n[ 40.712410] ------------[ cut here ]------------\n[ 40.712576] WARNING: CPU: 2 PID: 1562 at kernel/kexec_core.c:1001 kimage_map_segment+0x144/0x198\n[...]\n[ 40.816047] Call trace:\n[ 40.818498] kimage_map_segment+0x144/0x198 (P)\n[ 40.823221] ima_kexec_post_load+0x58/0xc0\n[ 40.827246] __do_sys_kexec_file_load+0x29c/0x368\n[...]\n[ 40.855423] ---[ end trace 0000000000000000 ]---\n\n*** How to reproduce ***\n\nThis bug is only triggered when the kexec target address is allocated in\nthe CMA area. If no CMA area is reserved in the kernel, use the \"cma=\"\noption in the kernel command line to reserve one.\n\n*** Root cause ***\nThe commit 07d24902977e (\"kexec: enable CMA based contiguous\nallocation\") allocates the kexec target address directly on the CMA area\nto avoid copying during the jump. In this case, there is no IND_SOURCE\nfor the kexec segment. But the current implementation of\nkimage_map_segment() assumes that IND_SOURCE pages exist and map them\ninto a contiguous virtual address by vmap().\n\n*** Solution ***\nIf IMA segment is allocated in the CMA area, use its page_address()\ndirectly."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/kexec_core.c"], "versions": [{"version": "07d24902977e4704fab8472981e73a0ad6dfa1fd", "lessThan": "a843e4155c83211c55b1b6cc17eab27a6a2c5b6f", "status": "affected", "versionType": "git"}, {"version": "07d24902977e4704fab8472981e73a0ad6dfa1fd", "lessThan": "a3785ae5d334bb71d47a593d54c686a03fb9d136", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/kexec_core.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.4", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.19-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a843e4155c83211c55b1b6cc17eab27a6a2c5b6f"}, {"url": "https://git.kernel.org/stable/c/a3785ae5d334bb71d47a593d54c686a03fb9d136"}], "title": "kernel/kexec: fix IMA when allocation happens in CMA area", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nkernel/kexec: fix IMA when allocation happens in CMA area\n\n*** Bug description ***\n\nWhen I tested kexec with the latest kernel, I ran into the following warning:\n\n[ 40.712410] ------------[ cut here ]------------\n[ 40.712576] WARNING: CPU: 2 PID: 1562 at kernel/kexec_core.c:1001 kimage_map_segment+0x144/0x198\n[...]\n[ 40.816047] Call trace:\n[ 40.818498] kimage_map_segment+0x144/0x198 (P)\n[ 40.823221] ima_kexec_post_load+0x58/0xc0\n[ 40.827246] __do_sys_kexec_file_load+0x29c/0x368\n[...]\n[ 40.855423] ---[ end trace 0000000000000000 ]---\n\n*** How to reproduce ***\n\nThis bug is only triggered when the kexec target address is allocated in\nthe CMA area. If no CMA area is reserved in the kernel, use the \"cma=\"\noption in the kernel command line to reserve one.\n\n*** Root cause ***\nThe commit 07d24902977e (\"kexec: enable CMA based contiguous\nallocation\") allocates the kexec target address directly on the CMA area\nto avoid copying during the jump. In this case, there is no IND_SOURCE\nfor the kexec segment. But the current implementation of\nkimage_map_segment() assumes that IND_SOURCE pages exist and map them\ninto a contiguous virtual address by vmap().\n\n*** Solution ***\nIf IMA segment is allocated in the CMA area, use its page_address()\ndirectly."}], "id": "CVE-2025-71139", "lastModified": "2026-01-14T16:25:12.057", "metrics": {}, "published": "2026-01-14T15:16:03.693", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3785ae5d334bb71d47a593d54c686a03fb9d136"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a843e4155c83211c55b1b6cc17eab27a6a2c5b6f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}