{"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":"2026-05-11T21:55:43.988Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:55:43.988Z"},"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","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"}]}]}],"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"}}}}