{"cve":"CVE-2021-47029","nvd":{"published":"2024-02-28T09:15:39.480","modified":"2026-06-17T04:16:14.573","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: connac: fix kernel warning adding monitor interface\n\nFix the following kernel warning adding a monitor interface in\nmt76_connac_mcu_uni_add_dev routine.\n\n[  507.984882] ------------[ cut here ]------------\n[  507.989515] WARNING: CPU: 1 PID: 3017 at mt76_connac_mcu_uni_add_dev+0x178/0x190 [mt76_connac_lib]\n[  508.059379] CPU: 1 PID: 3017 Comm: ifconfig Not tainted 5.4.98 #0\n[  508.065461] Hardware name: MT7622_MT7531 RFB (DT)\n[  508.070156] pstate: 80000005 (Nzcv daif -PAN -UAO)\n[  508.074939] pc : mt76_connac_mcu_uni_add_dev+0x178/0x190 [mt76_connac_lib]\n[  508.081806] lr : mt7921_eeprom_init+0x1288/0x1cb8 [mt7921e]\n[  508.087367] sp : ffffffc013a33930\n[  508.090671] x29: ffffffc013a33930 x28: ffffff801e628ac0\n[  508.095973] x27: ffffff801c7f1200 x26: ffffff801c7eb008\n[  508.101275] x25: ffffff801c7eaef0 x24: ffffff801d025610\n[  508.106577] x23: ffffff801d022990 x22: ffffff801d024de8\n[  508.111879] x21: ffffff801d0226a0 x20: ffffff801c7eaee8\n[  508.117181] x19: ffffff801d0226a0 x18: 000000005d00b000\n[  508.122482] x17: 00000000ffffffff x16: 0000000000000000\n[  508.127785] x15: 0000000000000080 x14: ffffff801d704000\n[  508.133087] x13: 0000000000000040 x12: 0000000000000002\n[  508.138389] x11: 000000000000000c x10: 0000000000000000\n[  508.143691] x9 : 0000000000000020 x8 : 0000000000000001\n[  508.148992] x7 : 0000000000000000 x6 : 0000000000000000\n[  508.154294] x5 : ffffff801c7eaee8 x4 : 0000000000000006\n[  508.159596] x3 : 0000000000000001 x2 : 0000000000000000\n[  508.164898] x1 : ffffff801c7eac08 x0 : ffffff801d0226a0\n[  508.170200] Call trace:\n[  508.172640]  mt76_connac_mcu_uni_add_dev+0x178/0x190 [mt76_connac_lib]\n[  508.179159]  mt7921_eeprom_init+0x1288/0x1cb8 [mt7921e]\n[  508.184394]  drv_add_interface+0x34/0x88 [mac80211]\n[  508.189271]  ieee80211_add_virtual_monitor+0xe0/0xb48 [mac80211]\n[  508.195277]  ieee80211_do_open+0x86c/0x918 [mac80211]\n[  508.200328]  ieee80211_do_open+0x900/0x918 [mac80211]\n[  508.205372]  __dev_open+0xcc/0x150\n[  508.208763]  __dev_change_flags+0x134/0x198\n[  508.212937]  dev_change_flags+0x20/0x60\n[  508.216764]  devinet_ioctl+0x3e8/0x748\n[  508.220503]  inet_ioctl+0x1e4/0x350\n[  508.223983]  sock_do_ioctl+0x48/0x2a0\n[  508.227635]  sock_ioctl+0x310/0x4f8\n[  508.231116]  do_vfs_ioctl+0xa4/0xac0\n[  508.234681]  ksys_ioctl+0x44/0x90\n[  508.237985]  __arm64_sys_ioctl+0x1c/0x48\n[  508.241901]  el0_svc_common.constprop.1+0x7c/0x100\n[  508.246681]  el0_svc_handler+0x18/0x20\n[  508.250421]  el0_svc+0x8/0x1c8\n[  508.253465] ---[ end trace c7b90fee13d72c39 ]---\n[  508.261278] ------------[ cut here ]------------","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/2554b9cb4b5e097c6071ec3ed5bc7c665c477ca7","https://git.kernel.org/stable/c/c996f0346e40e3b1ac2ebaf0681df898fb157f60","https://git.kernel.org/stable/c/2554b9cb4b5e097c6071ec3ed5bc7c665c477ca7","https://git.kernel.org/stable/c/c996f0346e40e3b1ac2ebaf0681df898fb157f60"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2021-47029","score":0.00246,"percentile":0.15877,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}