gsd-2021-46924
Vulnerability from gsd
Modified
2024-02-26 06:03
Details
In the Linux kernel, the following vulnerability has been resolved:
NFC: st21nfca: Fix memory leak in device probe and remove
'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:
unreferenced object 0xffff88800bc06800 (size 512):
comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
[<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
[<000000005fea522c>] __alloc_skb+0x124/0x380
[<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2
Fix it by freeing 'pending_skb' in error and remove.
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-46924" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: st21nfca: Fix memory leak in device probe and remove\n\n\u0027phy-\u003epending_skb\u0027 is alloced when device probe, but forgot to free\nin the error handling path and remove path, this cause memory leak\nas follows:\n\nunreferenced object 0xffff88800bc06800 (size 512):\n comm \"8\", pid 11775, jiffies 4295159829 (age 9.032s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003c00000000d66c09ce\u003e] __kmalloc_node_track_caller+0x1ed/0x450\n [\u003c00000000c93382b3\u003e] kmalloc_reserve+0x37/0xd0\n [\u003c000000005fea522c\u003e] __alloc_skb+0x124/0x380\n [\u003c0000000019f29f9a\u003e] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing \u0027pending_skb\u0027 in error and remove.", "id": "GSD-2021-46924", "modified": "2024-02-26T06:03:52.846268Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2021-46924", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "68957303f44a", "version_value": "38c3e320e7ff" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "status": "affected", "version": "3.16" }, { "lessThan": "3.16", "status": "unaffected", "version": "0", "versionType": "custom" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.261", "versionType": "custom" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.224", "versionType": "custom" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.170", "versionType": "custom" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.90", "versionType": "custom" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.13", "versionType": "custom" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: st21nfca: Fix memory leak in device probe and remove\n\n\u0027phy-\u003epending_skb\u0027 is alloced when device probe, but forgot to free\nin the error handling path and remove path, this cause memory leak\nas follows:\n\nunreferenced object 0xffff88800bc06800 (size 512):\n comm \"8\", pid 11775, jiffies 4295159829 (age 9.032s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003c00000000d66c09ce\u003e] __kmalloc_node_track_caller+0x1ed/0x450\n [\u003c00000000c93382b3\u003e] kmalloc_reserve+0x37/0xd0\n [\u003c000000005fea522c\u003e] __alloc_skb+0x124/0x380\n [\u003c0000000019f29f9a\u003e] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing \u0027pending_skb\u0027 in error and remove." } ] }, "generator": { "engine": "bippy-b01c2a820106" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d" }, { "name": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349" }, { "name": "https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b" }, { "name": "https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4" }, { "name": "https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe" }, { "name": "https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8A00E6D4-E196-4382-BAC7-C4BAC5A9CFAA", "versionEndExcluding": "4.14.261", "versionStartIncluding": "3.16.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B34A1353-506A-4AB9-87EC-CD50F09DFB8A", "versionEndExcluding": "4.19.224", "versionStartIncluding": "4.15.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "56D16FBB-453E-4316-A027-E517828203D7", "versionEndExcluding": "5.4.170", "versionStartIncluding": "4.20.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C87FB3FD-3E74-4588-A1A4-B9BA8AE0C06B", "versionEndExcluding": "5.10.90", "versionStartIncluding": "5.5.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "083E0940-932B-447B-A6B2-677DAE27FD04", "versionEndExcluding": "5.15.13", "versionStartIncluding": "5.11.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: st21nfca: Fix memory leak in device probe and remove\n\n\u0027phy-\u003epending_skb\u0027 is alloced when device probe, but forgot to free\nin the error handling path and remove path, this cause memory leak\nas follows:\n\nunreferenced object 0xffff88800bc06800 (size 512):\n comm \"8\", pid 11775, jiffies 4295159829 (age 9.032s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003c00000000d66c09ce\u003e] __kmalloc_node_track_caller+0x1ed/0x450\n [\u003c00000000c93382b3\u003e] kmalloc_reserve+0x37/0xd0\n [\u003c000000005fea522c\u003e] __alloc_skb+0x124/0x380\n [\u003c0000000019f29f9a\u003e] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing \u0027pending_skb\u0027 in error and remove." }, { "lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: NFC: st21nfca: corrige la p\u00e9rdida de memoria en la sonda del dispositivo y elimina \u0027phy-\u0026gt;pending_skb\u0027 cuando se asigna la sonda del dispositivo, pero olvid\u00f3 liberarla en la ruta de manejo de errores y eliminar la ruta, esto causa p\u00e9rdida de memoria de la siguiente manera: objeto sin referencia 0xffff88800bc06800 (tama\u00f1o 512): comunicaci\u00f3n \"8\", pid 11775, santiago 4295159829 (edad 9.032 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................. backtrace: [\u0026lt;00000000d66c09ce\u0026gt;] __kmalloc_node_track_caller+0x1ed/0x450 [\u0026lt;00000000c93382b3\u0026gt;] kmalloc_reserve+0x37/0xd0 [\u0026lt;000000005fea522c\u0026gt;] __alloc_skb+0x124/0x380 [ \u0026lt;0000000019f29f9a\u0026gt;] st21nfca_hci_i2c_probe+0x170/0x8f2 Solucionarlo liberando \u0027pending_skb\u0027 por error y elim\u00ednelo." } ], "id": "CVE-2021-46924", "lastModified": "2024-04-10T15:23:33.673", "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": "2024-02-27T10:15:07.150", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": [ "Patch" ], "url": "https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-401" } ], "source": "nvd@nist.gov", "type": "Primary" } ] } } } }
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Sightings
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Nomenclature
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