{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-46924", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.719Z", "datePublished": "2024-02-27T09:43:54.792Z", "dateUpdated": "2026-05-11T13:44:32.039Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:44:32.039Z" }, "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'phy->pending_skb' 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 [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450\n [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0\n [<000000005fea522c>] __alloc_skb+0x124/0x380\n [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2\n\nFix it by freeing 'pending_skb' in error and remove." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/nfc/st21nfca/i2c.c" ], "versions": [ { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "38c3e320e7ff46f2dc67bc5045333e63d9f8918d", "status": "affected", "versionType": "git" }, { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "a1e0080a35a16ce3808f7040fe0c3a8fdb052349", "status": "affected", "versionType": "git" }, { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "1cd4063dbc91cf7965d73a6a3855e2028cd4613b", "status": "affected", "versionType": "git" }, { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "e553265ea56482da5700f56319fda9ff53e7dcb4", "status": "affected", "versionType": "git" }, { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "238920381b8925d070d32d73cd9ce52ab29896fe", "status": "affected", "versionType": "git" }, { "version": "68957303f44a501af5cf37913208a2acaa6bcdf1", "lessThan": "1b9dadba502234eea7244879b8d5d126bfaf9f0c", "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/nfc/st21nfca/i2c.c" ], "versions": [ { "version": "3.16", "status": "affected" }, { "version": "0", "lessThan": "3.16", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.261", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.224", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.170", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.90", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.13", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16", "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": "3.16", "versionEndExcluding": "4.14.261" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "4.19.224" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.4.170" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.10.90" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.15.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.16", "versionEndExcluding": "5.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d" }, { "url": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349" }, { "url": "https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b" }, { "url": "https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4" }, { "url": "https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe" }, { "url": "https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c" } ], "title": "NFC: st21nfca: Fix memory leak in device probe and remove", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-46924", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-02-27T20:52:36.820473Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:22:03.300Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:17:42.982Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c", "tags": [ "x_transferred" ] } ] } ] } }