CVE-2021-46924
Vulnerability from cvelistv5
Published
2024-02-27 09:43
Modified
2024-11-04 11:56
Severity ?
Summary
NFC: st21nfca: Fix memory leak in device probe and remove
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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    "dateReserved": "2024-02-25T13:45:52.719Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-46924\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-27T10:15:07.150\",\"lastModified\":\"2024-04-10T15:23:33.673\",\"vulnStatus\":\"Analyzed\",\"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;] 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}


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