{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-50133", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.955Z", "datePublished": "2024-11-05T17:10:58.264Z", "dateUpdated": "2024-11-05T17:10:58.264Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T17:10:58.264Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Don't crash in stack_top() for tasks without vDSO\n\nNot all tasks have a vDSO mapped, for example kthreads never do. If such\na task ever ends up calling stack_top(), it will derefence the NULL vdso\npointer and crash.\n\nThis can for example happen when using kunit:\n\n\t[<9000000000203874>] stack_top+0x58/0xa8\n\t[<90000000002956cc>] arch_pick_mmap_layout+0x164/0x220\n\t[<90000000003c284c>] kunit_vm_mmap_init+0x108/0x12c\n\t[<90000000003c1fbc>] __kunit_add_resource+0x38/0x8c\n\t[<90000000003c2704>] kunit_vm_mmap+0x88/0xc8\n\t[<9000000000410b14>] usercopy_test_init+0xbc/0x25c\n\t[<90000000003c1db4>] kunit_try_run_case+0x5c/0x184\n\t[<90000000003c3d54>] kunit_generic_run_threadfn_adapter+0x24/0x48\n\t[<900000000022e4bc>] kthread+0xc8/0xd4\n\t[<9000000000200ce8>] ret_from_kernel_thread+0xc/0xa4"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/loongarch/kernel/process.c"], "versions": [{"version": "803b0fc5c3f2", "lessThan": "a67d4a02bf43", "status": "affected", "versionType": "git"}, {"version": "803b0fc5c3f2", "lessThan": "a94c197d4d74", "status": "affected", "versionType": "git"}, {"version": "803b0fc5c3f2", "lessThan": "041cc3860b06", "status": "affected", "versionType": "git"}, {"version": "803b0fc5c3f2", "lessThan": "134475a9ab84", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/loongarch/kernel/process.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.115", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.59", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.6", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12-rc5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/a67d4a02bf43e15544179895ede7d5f97b84b550"}, {"url": "https://git.kernel.org/stable/c/a94c197d4d749954dfaa37e907fcc8c04e4aad7e"}, {"url": "https://git.kernel.org/stable/c/041cc3860b06770357876d1114d615333b0fbf31"}, {"url": "https://git.kernel.org/stable/c/134475a9ab8487527238d270639a8cb74c10aab2"}], "title": "LoongArch: Don't crash in stack_top() for tasks without vDSO", "x_generator": {"engine": "bippy-9e1c9544281a"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B049DFAE-9BF4-40E0-BBF0-BF8F84C42A75", "versionEndExcluding": "6.1.115", "versionStartIncluding": "5.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5D15CA59-D15C-4ACD-8B03-A072DEAD2081", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Don't crash in stack_top() for tasks without vDSO\n\nNot all tasks have a vDSO mapped, for example kthreads never do. If such\na task ever ends up calling stack_top(), it will derefence the NULL vdso\npointer and crash.\n\nThis can for example happen when using kunit:\n\n\t[<9000000000203874>] stack_top+0x58/0xa8\n\t[<90000000002956cc>] arch_pick_mmap_layout+0x164/0x220\n\t[<90000000003c284c>] kunit_vm_mmap_init+0x108/0x12c\n\t[<90000000003c1fbc>] __kunit_add_resource+0x38/0x8c\n\t[<90000000003c2704>] kunit_vm_mmap+0x88/0xc8\n\t[<9000000000410b14>] usercopy_test_init+0xbc/0x25c\n\t[<90000000003c1db4>] kunit_try_run_case+0x5c/0x184\n\t[<90000000003c3d54>] kunit_generic_run_threadfn_adapter+0x24/0x48\n\t[<900000000022e4bc>] kthread+0xc8/0xd4\n\t[<9000000000200ce8>] ret_from_kernel_thread+0xc/0xa4"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: LoongArch: No se bloquea en stack_top() para tareas sin vDSO No todas las tareas tienen un vDSO asignado, por ejemplo, kthreads nunca lo tiene. Si alguna vez una tarea de este tipo termina llamando a stack_top(), desreferenciar\u00e1 el puntero vdso NULL y se bloquear\u00e1. Esto puede suceder, por ejemplo, al usar kunit: [&lt;9000000000203874&gt;] stack_top+0x58/0xa8 [&lt;90000000002956cc&gt;] arch_pick_mmap_layout+0x164/0x220 [&lt;90000000003c284c&gt;] kunit_vm_mmap_init+0x108/0x12c [&lt;90000000003c1fbc&gt;] __kunit_add_resource+0x38/0x8c [&lt;90000000003c2704&gt;] kunit_vm_mmap+0x88/0xc8 [&lt;9000000000410b14&gt;] usercopy_test_init+0xbc/0x25c [&lt;90000000003c1db4&gt;] kunit_try_run_case+0x5c/0x184 [&lt;90000000003c3d54&gt;] kunit_generic_run_threadfn_adapter+0x24/0x48 [&lt;900000000022e4bc&gt;] kthread+0xc8/0xd4 [&lt;9000000000200ce8&gt;] ret_from_kernel_thread+0xc/0xa4"}], "id": "CVE-2024-50133", "lastModified": "2024-11-07T21:17:35.673", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-11-05T18:15:16.030", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/041cc3860b06770357876d1114d615333b0fbf31"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/134475a9ab8487527238d270639a8cb74c10aab2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a67d4a02bf43e15544179895ede7d5f97b84b550"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a94c197d4d749954dfaa37e907fcc8c04e4aad7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: LoongArch: Don&#39;t crash in stack_top() for tasks without vDSO", "id": "2323935", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2323935"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nLoongArch: Don't crash in stack_top() for tasks without vDSO\nNot all tasks have a vDSO mapped, for example kthreads never do. If such\na task ever ends up calling stack_top(), it will derefence the NULL vdso\npointer and crash.\nThis can for example happen when using kunit:\n[<9000000000203874>] stack_top+0x58/0xa8\n[<90000000002956cc>] arch_pick_mmap_layout+0x164/0x220\n[<90000000003c284c>] kunit_vm_mmap_init+0x108/0x12c\n[<90000000003c1fbc>] __kunit_add_resource+0x38/0x8c\n[<90000000003c2704>] kunit_vm_mmap+0x88/0xc8\n[<9000000000410b14>] usercopy_test_init+0xbc/0x25c\n[<90000000003c1db4>] kunit_try_run_case+0x5c/0x184\n[<90000000003c3d54>] kunit_generic_run_threadfn_adapter+0x24/0x48\n[<900000000022e4bc>] kthread+0xc8/0xd4\n[<9000000000200ce8>] ret_from_kernel_thread+0xc/0xa4"], "name": "CVE-2024-50133", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-50133\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50133\nhttps://lore.kernel.org/linux-cve-announce/2024110558-CVE-2024-50133-3d60@gregkh/T"], "threat_severity": "Moderate"}