{"id":"CVE-2023-53452","title":"wifi: rtw89: fix potential race condition between napi_init and napi_enable","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: fix potential race condition between napi_init and napi_enable\n\nA race condition can happen if netdev is registered, but NAPI isn't\ninitialized yet, and me…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 39712c8aeb79691bcec8bd6ff658cde1651e0803","Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < aa48073c2f993e1b0c0bc66b03ae105cac0130bc","Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < b1b90c7df08ef385f95827ee3aee87bddd1ef5c5","Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 47515664ecfbde11425dff121f298ae4499425c9","Linux 5.16"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:20:58.845673Z"},"published":"2025-10-01","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:09.377Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53452","references":[{"url":"https://git.kernel.org/stable/c/39712c8aeb79691bcec8bd6ff658cde1651e0803"},{"url":"https://git.kernel.org/stable/c/aa48073c2f993e1b0c0bc66b03ae105cac0130bc"},{"url":"https://git.kernel.org/stable/c/b1b90c7df08ef385f95827ee3aee87bddd1ef5c5"},{"url":"https://git.kernel.org/stable/c/47515664ecfbde11425dff121f298ae4499425c9"}],"tags":["cve.org"],"epss":0.00114,"epssPercentile":0.01463,"ingestedAt":"2026-11-05T22:38:31.796Z","slug":"CVE-2023-53452","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: fix potential race condition between napi_init and napi_enable\n\nA race condition can happen if netdev is registered, but NAPI isn't\ninitialized yet, and meanwhile user space starts the netdev that will\nenable NAPI. Then, it hits BUG_ON():\n\n kernel BUG at net/core/dev.c:6423!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 0 PID: 417 Comm: iwd Not tainted 6.2.7-slab-dirty #3 eb0f5a8a9d91\n Hardware name: LENOVO 21DL/LNVNB161216, BIOS JPCN20WW(V1.06) 09/20/2022\n RIP: 0010:napi_enable+0x3f/0x50\n Code: 48 89 c2 48 83 e2 f6 f6 81 89 08 00 00 02 74 0d 48 83 ...\n RSP: 0018:ffffada1414f3548 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: ffffa01425802080 RCX: 0000000000000000\n RDX: 00000000000002ff RSI: ffffada14e50c614 RDI: ffffa01425808dc0\n RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000001 R11: 0000000000000100 R12: ffffa01425808f58\n R13: 0000000000000000 R14: ffffa01423498940 R15: 0000000000000001\n FS:  00007f5577c0a740(0000) GS:ffffa0169fc00000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f5577a19972 CR3: 0000000125a7a000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n  <TASK>\n  rtw89_pci_ops_start+0x1c/0x70 [rtw89_pci 6cbc75429515c181cbc386478d5cfb32ffc5a0f8]\n  rtw89_core_start+0xbe/0x160 [rtw89_core fe07ecb874820b6d778370d4acb6ef8a37847f22]\n  rtw89_ops_start+0x26/0x40 [rtw89_core fe07ecb874820b6d778370d4acb6ef8a37847f22]\n  drv_start+0x42/0x100 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]\n  ieee80211_do_open+0x311/0x7d0 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]\n  ieee80211_open+0x6a/0x90 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]\n  __dev_open+0xe0/0x180\n  __dev_change_flags+0x1da/0x250\n  dev_change_flags+0x26/0x70\n  do_setlink+0x37c/0x12c0\n  ? ep_poll_callback+0x246/0x290\n  ? __nla_validate_parse+0x61/0xd00\n  ? __wake_up_common_lock+0x8f/0xd0\n\nTo fix this, follow Jonas' suggestion to switch the order of these\nfunctions and move register netdev to be the last step of PCI probe.\nAlso, correct the error handling of rtw89_core_register_hw().\n\n## Affected\n\n- `Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 39712c8aeb79691bcec8bd6ff658cde1651e0803`\n- `Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < aa48073c2f993e1b0c0bc66b03ae105cac0130bc`\n- `Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < b1b90c7df08ef385f95827ee3aee87bddd1ef5c5`\n- `Linux >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 47515664ecfbde11425dff121f298ae4499425c9`\n- `Linux 5.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}