{"id":"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'phy-\u003epending_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    [\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 'pending_skb' in error and remove.","modified":"2026-03-13T05:19:21.174967Z","published":"2024-02-27T10:15:07.150Z","related":["SUSE-SU-2024:0855-1","SUSE-SU-2024:0856-1","SUSE-SU-2024:0857-1","SUSE-SU-2024:0858-1","SUSE-SU-2024:0900-1","SUSE-SU-2024:0900-2","SUSE-SU-2024:0910-1","SUSE-SU-2024:0925-1","SUSE-SU-2024:0926-1","SUSE-SU-2024:0975-1","SUSE-SU-2024:0976-1","SUSE-SU-2024:0977-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c"},{"type":"FIX","url":"https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe"},{"type":"FIX","url":"https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d"},{"type":"FIX","url":"https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349"},{"type":"FIX","url":"https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"3.16.0"},{"fixed":"4.14.261"}]},{"events":[{"introduced":"4.15.0"},{"fixed":"4.19.224"}]},{"events":[{"introduced":"4.20.0"},{"fixed":"5.4.170"}]},{"events":[{"introduced":"5.5.0"},{"fixed":"5.10.90"}]},{"events":[{"introduced":"5.11.0"},{"fixed":"5.15.13"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46924.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}