{"id":"CVE-2025-71306","state":"PUBLISHED","title":"ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()\n\nKASAN reported a stack-out-of-bounds access in ima_appraise_measurement\nfrom is_bprm_creds_for_exec:\n\nBUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0\n Read of size 1 at addr ffffc9000160f940 by task sudo/550\nThe buggy address belongs to stack of task sudo/550\nand is located at offset 24 in frame:\n  ima_appraise_measurement+0x0/0x16a0\nThis frame has 2 objects:\n  [48, 56) 'file'\n  [80, 148) 'hash'\n\nThis is caused by using container_of on the *file pointer. This offset\ncalculation is what triggers the stack-out-of-bounds error.\n\nIn order to fix this, pass in a bprm_is_check boolean which can be set\ndepending on how process_measurement is called. If the caller has a\nlinux_binprm pointer and the function is BPRM_CHECK we can determine\nis_check and set it then. Otherwise set it to false.","publishedAt":"2026-05-27T12:14:57.182Z","updatedAt":"2026-10-21T12:38:43.000Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"0f39d936a34933ebfbdc13a04f0aba814d3b9709","versionType":"git"},{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"ab3d16da982a4ebb715d487dbf9dd66e3990d935","versionType":"git"},{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"377cae9851e8559e9d8b82a78c1ac0abeb18839c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/integrity/ima/ima.h","security/integrity/ima/ima_appraise.c","security/integrity/ima/ima_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.58","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/integrity/ima/ima.h","security/integrity/ima/ima_appraise.c","security/integrity/ima/ima_main.c"]}],"references":["https://git.kernel.org/stable/c/0f39d936a34933ebfbdc13a04f0aba814d3b9709","https://git.kernel.org/stable/c/ab3d16da982a4ebb715d487dbf9dd66e3990d935","https://git.kernel.org/stable/c/377cae9851e8559e9d8b82a78c1ac0abeb18839c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/71xxx/CVE-2025-71306.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-71306","state":"PUBLISHED","datePublished":"2026-05-27T12:14:57.182Z","dateUpdated":"2026-10-21T12:38:43.000Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-08T13:14:33.088Z"},"containers":{"cna":{"title":"ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()\n\nKASAN reported a stack-out-of-bounds access in ima_appraise_measurement\nfrom is_bprm_creds_for_exec:\n\nBUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0\n Read of size 1 at addr ffffc9000160f940 by task sudo/550\nThe buggy address belongs to stack of task sudo/550\nand is located at offset 24 in frame:\n  ima_appraise_measurement+0x0/0x16a0\nThis frame has 2 objects:\n  [48, 56) 'file'\n  [80, 148) 'hash'\n\nThis is caused by using container_of on the *file pointer. This offset\ncalculation is what triggers the stack-out-of-bounds error.\n\nIn order to fix this, pass in a bprm_is_check boolean which can be set\ndepending on how process_measurement is called. If the caller has a\nlinux_binprm pointer and the function is BPRM_CHECK we can determine\nis_check and set it then. Otherwise set it to false."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"0f39d936a34933ebfbdc13a04f0aba814d3b9709","versionType":"git"},{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"ab3d16da982a4ebb715d487dbf9dd66e3990d935","versionType":"git"},{"version":"95b3cdafd7cb74414070893445a9b731793f7b55","status":"affected","lessThan":"377cae9851e8559e9d8b82a78c1ac0abeb18839c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/integrity/ima/ima.h","security/integrity/ima/ima_appraise.c","security/integrity/ima/ima_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.58","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/integrity/ima/ima.h","security/integrity/ima/ima_appraise.c","security/integrity/ima/ima_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0f39d936a34933ebfbdc13a04f0aba814d3b9709"},{"url":"https://git.kernel.org/stable/c/ab3d16da982a4ebb715d487dbf9dd66e3990d935"},{"url":"https://git.kernel.org/stable/c/377cae9851e8559e9d8b82a78c1ac0abeb18839c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:38:43.000Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.18.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}