CVE-2024-50153

In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Fix null-ptr-deref in target_alloc_device() There is a null-ptr-deref issue reported by KASAN: BUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod] ... kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 ... entry_SYSCALL_64_after_hwframe+0x76/0x7e In target_alloc_device(), if allocing memory for dev queues fails, then dev will be freed by dev->transport->free_device(), but dev->transport is not initialized at that time, which will lead to a null pointer reference problem. Fixing this bug by freeing dev with hba->backend->ops->free_device().

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd	Patch
https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7	Patch
https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314	Patch
https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1	Patch
https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6	Patch
https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.10.180:::::::*
	cpe:2.3:o:linux:linux_kernel:6.12:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc3::::::

History

No history.

Information

Published : 2024-11-07 10:15

Updated : 2024-11-13 15:23

NVD link : CVE-2024-50153

Mitre link : CVE-2024-50153

CVE.ORG link : CVE-2024-50153

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

{"id": "CVE-2024-50153", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-11-07T10:15:06.917", "references": [{"url": "https://git.kernel.org/stable/c/14a6a2adb440e4ae97bee73b2360946bd033dadd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/39e02fa90323243187c91bb3e8f2f5f6a9aacfc7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/895ab729425ef9bf3b6d2f8d0853abe64896f314", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8c1e6717f60d31f8af3937c23c4f1498529584e1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b80e9bc85bd9af378e7eac83e15dd129557bbdb6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fca6caeb4a61d240f031914413fcc69534f6dc03", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: core: Fix null-ptr-deref in target_alloc_device()\n\nThere is a null-ptr-deref issue reported by KASAN:\n\nBUG: KASAN: null-ptr-deref in target_alloc_device+0xbc4/0xbe0 [target_core_mod]\n...\n kasan_report+0xb9/0xf0\n target_alloc_device+0xbc4/0xbe0 [target_core_mod]\n core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod]\n target_core_init_configfs+0x205/0x420 [target_core_mod]\n do_one_initcall+0xdd/0x4e0\n...\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nIn target_alloc_device(), if allocing memory for dev queues fails, then\ndev will be freed by dev->transport->free_device(), but dev->transport\nis not initialized at that time, which will lead to a null pointer\nreference problem.\n\nFixing this bug by freeing dev with hba->backend->ops->free_device()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: core: Corregir null-ptr-deref en target_alloc_device() KASAN ha informado de un problema de null-ptr-deref: ERROR: KASAN: null-ptr-deref en target_alloc_device+0xbc4/0xbe0 [target_core_mod] ... kasan_report+0xb9/0xf0 target_alloc_device+0xbc4/0xbe0 [target_core_mod] core_dev_setup_virtual_lun0+0xef/0x1f0 [target_core_mod] target_core_init_configfs+0x205/0x420 [target_core_mod] do_one_initcall+0xdd/0x4e0 ... entry_SYSCALL_64_after_hwframe+0x76/0x7e En target_alloc_device(), si falla la asignaci\u00f3n de memoria para las colas dev, dev se liberar\u00e1 mediante dev->transport->free_device(), pero dev->transport no se inicializa en ese momento, lo que generar\u00e1 un problema de referencia de puntero nulo. Se soluciona este error liberando dev con hba->backend->ops->free_device()."}], "lastModified": "2024-11-13T15:23:49.717", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A9BA1C73-2D2E-45E3-937B-276A28AEB5FC", "versionEndExcluding": "5.15.170", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C08A77A6-E42E-4EFD-B5A1-2BF6CBBB42AE", "versionEndExcluding": "6.1.115", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D15CA59-D15C-4ACD-8B03-A072DEAD2081", "versionEndExcluding": "6.6.59", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4486B12-007B-4794-9857-F07145637AA1", "versionEndExcluding": "6.11.6", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.10.180:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E57BBF5A-3C2F-4683-90E9-C55C20DA0392"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}