{"api_version":"1","generated_at":"2026-05-28T07:33:03+00:00","cve":"CVE-2026-45959","urls":{"html":"https://cve.report/CVE-2026-45959","api":"https://cve.report/api/cve/CVE-2026-45959.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45959","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45959"},"summary":{"title":"crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree\n\nAnnotating a local pointer variable, which will be assigned with the\nkmalloc-family functions, with the `__cleanup(kfree)` attribute will\nmake the address of the local variable, rather than the address returned\nby kmalloc, passed to kfree directly and lead to a crash due to invalid\ndeallocation of stack address. According to other places in the repo,\nthe correct usage should be `__free(kfree)`. The code coincidentally\ncompiled because the parameter type `void *` of kfree is compatible with\nthe desired type `struct { ... } **`.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:12","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0b","name":"https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438","name":"https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18","name":"https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45959","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45959","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a71475582ada92ba021852bf3c2b40ab3718549b 9a3ace9b010ffd8c422c97844ae152f7c53d6b18 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a71475582ada92ba021852bf3c2b40ab3718549b 90f9090e3e744a8fe3bb6fa0e61f577347728b0b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a71475582ada92ba021852bf3c2b40ab3718549b d5abcc33ee76bc26d58b39dc1a097e43a99dd438 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.14 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.4 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/crypto/ccp/ccp-ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9a3ace9b010ffd8c422c97844ae152f7c53d6b18","status":"affected","version":"a71475582ada92ba021852bf3c2b40ab3718549b","versionType":"git"},{"lessThan":"90f9090e3e744a8fe3bb6fa0e61f577347728b0b","status":"affected","version":"a71475582ada92ba021852bf3c2b40ab3718549b","versionType":"git"},{"lessThan":"d5abcc33ee76bc26d58b39dc1a097e43a99dd438","status":"affected","version":"a71475582ada92ba021852bf3c2b40ab3718549b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/crypto/ccp/ccp-ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.14","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.4","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree\n\nAnnotating a local pointer variable, which will be assigned with the\nkmalloc-family functions, with the `__cleanup(kfree)` attribute will\nmake the address of the local variable, rather than the address returned\nby kmalloc, passed to kfree directly and lead to a crash due to invalid\ndeallocation of stack address. According to other places in the repo,\nthe correct usage should be `__free(kfree)`. The code coincidentally\ncompiled because the parameter type `void *` of kfree is compatible with\nthe desired type `struct { ... } **`."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:18:16.039Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18"},{"url":"https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0b"},{"url":"https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438"}],"title":"crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45959","datePublished":"2026-05-27T12:18:16.039Z","dateReserved":"2026-05-13T15:03:33.089Z","dateUpdated":"2026-05-27T12:18:16.039Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:12","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45959","Ordinal":"1","Title":"crypto: ccp - Fix a crash due to incorrect cleanup usage of kfre","CVE":"CVE-2026-45959","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45959","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree\n\nAnnotating a local pointer variable, which will be assigned with the\nkmalloc-family functions, with the `__cleanup(kfree)` attribute will\nmake the address of the local variable, rather than the address returned\nby kmalloc, passed to kfree directly and lead to a crash due to invalid\ndeallocation of stack address. According to other places in the repo,\nthe correct usage should be `__free(kfree)`. The code coincidentally\ncompiled because the parameter type `void *` of kfree is compatible with\nthe desired type `struct { ... } **`.","Type":"Description","Title":"crypto: ccp - Fix a crash due to incorrect cleanup usage of kfre"}]}}}