{"id":"DEBIAN-CVE-2021-46924","details":"In the Linux kernel, the following vulnerability has been resolved:  NFC: st21nfca: Fix memory leak in device probe and remove  'phy-\u003epending_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:     [\u003c00000000d66c09ce\u003e] __kmalloc_node_track_caller+0x1ed/0x450     [\u003c00000000c93382b3\u003e] kmalloc_reserve+0x37/0xd0     [\u003c000000005fea522c\u003e] __alloc_skb+0x124/0x380     [\u003c0000000019f29f9a\u003e] st21nfca_hci_i2c_probe+0x170/0x8f2  Fix it by freeing 'pending_skb' in error and remove.","modified":"2026-09-15T09:02:30.414447667Z","published":"2024-02-27T10:15:07.150Z","upstream":["CVE-2021-46924"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-46924"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-46924.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-46924.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-46924.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}