{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-56624", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:06.017Z", "datePublished": "2024-12-27T14:51:27.318Z", "dateUpdated": "2025-05-04T10:00:13.375Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T10:00:13.375Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix out_fput in iommufd_fault_alloc()\n\nAs fput() calls the file->f_op->release op, where fault obj and ictx are\ngetting released, there is no need to release these two after fput() one\nmore time, which would result in imbalanced refcounts:\n refcount_t: decrement hit 0; leaking memory.\n WARNING: CPU: 48 PID: 2369 at lib/refcount.c:31 refcount_warn_saturate+0x60/0x230\n Call trace:\n refcount_warn_saturate+0x60/0x230 (P)\n refcount_warn_saturate+0x60/0x230 (L)\n iommufd_fault_fops_release+0x9c/0xe0 [iommufd]\n ...\n VFS: Close: file count is 0 (f_op=iommufd_fops [iommufd])\n WARNING: CPU: 48 PID: 2369 at fs/open.c:1507 filp_flush+0x3c/0xf0\n Call trace:\n filp_flush+0x3c/0xf0 (P)\n filp_flush+0x3c/0xf0 (L)\n __arm64_sys_close+0x34/0x98\n ...\n imbalanced put on file reference count\n WARNING: CPU: 48 PID: 2369 at fs/file.c:74 __file_ref_put+0x100/0x138\n Call trace:\n __file_ref_put+0x100/0x138 (P)\n __file_ref_put+0x100/0x138 (L)\n __fput_sync+0x4c/0xd0\n\nDrop those two lines to fix the warnings above."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/fault.c"], "versions": [{"version": "07838f7fd529c8a6de44b601d4b7057e6c8d36ed", "lessThan": "2b3f30c8edbf9a122ce01f13f0f41fbca5f1d41d", "status": "affected", "versionType": "git"}, {"version": "07838f7fd529c8a6de44b601d4b7057e6c8d36ed", "lessThan": "af7f4780514f850322b2959032ecaa96e4b26472", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/fault.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.5", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13", "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": "6.11", "versionEndExcluding": "6.12.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2b3f30c8edbf9a122ce01f13f0f41fbca5f1d41d"}, {"url": "https://git.kernel.org/stable/c/af7f4780514f850322b2959032ecaa96e4b26472"}], "title": "iommufd: Fix out_fput in iommufd_fault_alloc()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd: Fix out_fput in iommufd_fault_alloc()\n\nAs fput() calls the file->f_op->release op, where fault obj and ictx are\ngetting released, there is no need to release these two after fput() one\nmore time, which would result in imbalanced refcounts:\n refcount_t: decrement hit 0; leaking memory.\n WARNING: CPU: 48 PID: 2369 at lib/refcount.c:31 refcount_warn_saturate+0x60/0x230\n Call trace:\n refcount_warn_saturate+0x60/0x230 (P)\n refcount_warn_saturate+0x60/0x230 (L)\n iommufd_fault_fops_release+0x9c/0xe0 [iommufd]\n ...\n VFS: Close: file count is 0 (f_op=iommufd_fops [iommufd])\n WARNING: CPU: 48 PID: 2369 at fs/open.c:1507 filp_flush+0x3c/0xf0\n Call trace:\n filp_flush+0x3c/0xf0 (P)\n filp_flush+0x3c/0xf0 (L)\n __arm64_sys_close+0x34/0x98\n ...\n imbalanced put on file reference count\n WARNING: CPU: 48 PID: 2369 at fs/file.c:74 __file_ref_put+0x100/0x138\n Call trace:\n __file_ref_put+0x100/0x138 (P)\n __file_ref_put+0x100/0x138 (L)\n __fput_sync+0x4c/0xd0\n\nDrop those two lines to fix the warnings above."}], "id": "CVE-2024-56624", "lastModified": "2024-12-27T15:15:21.933", "metrics": {}, "published": "2024-12-27T15:15:21.933", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b3f30c8edbf9a122ce01f13f0f41fbca5f1d41d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af7f4780514f850322b2959032ecaa96e4b26472"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: iommufd: Fix out_fput in iommufd_fault_alloc()", "id": "2334443", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334443"}, "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"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niommufd: Fix out_fput in iommufd_fault_alloc()\nAs fput() calls the file->f_op->release op, where fault obj and ictx are\ngetting released, there is no need to release these two after fput() one\nmore time, which would result in imbalanced refcounts:\nrefcount_t: decrement hit 0; leaking memory.\nWARNING: CPU: 48 PID: 2369 at lib/refcount.c:31 refcount_warn_saturate+0x60/0x230\nCall trace:\nrefcount_warn_saturate+0x60/0x230 (P)\nrefcount_warn_saturate+0x60/0x230 (L)\niommufd_fault_fops_release+0x9c/0xe0 [iommufd]\n...\nVFS: Close: file count is 0 (f_op=iommufd_fops [iommufd])\nWARNING: CPU: 48 PID: 2369 at fs/open.c:1507 filp_flush+0x3c/0xf0\nCall trace:\nfilp_flush+0x3c/0xf0 (P)\nfilp_flush+0x3c/0xf0 (L)\n__arm64_sys_close+0x34/0x98\n...\nimbalanced put on file reference count\nWARNING: CPU: 48 PID: 2369 at fs/file.c:74 __file_ref_put+0x100/0x138\nCall trace:\n__file_ref_put+0x100/0x138 (P)\n__file_ref_put+0x100/0x138 (L)\n__fput_sync+0x4c/0xd0\nDrop those two lines to fix the warnings above."], "name": "CVE-2024-56624", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56624\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56624\nhttps://lore.kernel.org/linux-cve-announce/2024122711-CVE-2024-56624-35f7@gregkh/T"], "threat_severity": "Low"}