# CVE-2023-53452: linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: rtw89: fix potential race condition betwee...

CVE-2023-53452 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53452, released October 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-53452
- Priority: Routine
- CVSS: 4.7 (medium)
- EPSS: 0.0011
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 1, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  wifi: rtw89: fix potential race condition between napi_init and napi_enable  A race condition can happen if netdev is registered, but NAPI isn't initialized yet, and meanwhile user space starts the netdev that will enable NAPI. Then, it hits BUG_ON():   kernel BUG at net/core/dev.c:6423!  invalid opcode: 0000 [#1] PREEMPT SMP NOPTI  CPU: 0 PID: 417 Comm: iwd Not tainted 6.2.7-slab-dirty #3 eb0f5a8a9d91  Hardware name: LENOVO 21DL/LNVNB161216, BIOS JPCN20WW(V1.06) 09/20/2022  RIP: 0010:napi_enable+0x3f/0x50  Code: 48 89 c2 48 83 e2 f6 f6 81 89 08 00 00 02 74 0d 48 83 ...  RSP: 0018:ffffada1414f3548 EFLAGS: 00010246  RAX: 0000000000000000 RBX: ffffa01425802080 RCX: 0000000000000000  RDX: 00000000000002ff RSI: ffffada14e50c614 RDI: ffffa01425808dc0  RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000  R10: 0000000000000001 R11: 0000000000000100 R12: ffffa01425808f58  R13: 0000000000000000 R14: ffffa01423498940 R15: 0000000000000001  FS:  00007f5577c0a740(0000) GS:ffffa0169fc00000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f5577a19972 CR3: 0000000125a7a000 CR4: 0000000000750ef0  PKRU: 55555554  Call Trace:   <TASK>   rtw89_pci_ops_start+0x1c/0x70 [rtw89_pci 6cbc75429515c181cbc386478d5cfb32ffc5a0f8]   rtw89_core_start+0xbe/0x160 [rtw89_core fe07ecb874820b6d778370d4acb6ef8a37847f22]   rtw89_ops_start+0x26/0x40 [rtw89_core fe07ecb874820b6d778370d4acb6ef8a37847f22]   drv_start+0x42/0x100 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]   ieee80211_do_open+0x311/0x7d0 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]   ieee80211_open+0x6a/0x90 [mac80211 c07fa22af8c3cf3f7d7ab3884ca990784d72e2d2]   __dev_open+0xe0/0x180   __dev_change_flags+0x1da/0x250   dev_change_flags+0x26/0x70   do_setlink+0x37c/0x12c0   ? ep_poll_callback+0x246/0x290   ? __nla_validate_parse+0x61/0xd00   ? __wake_up_common_lock+0x8f/0xd0  To fix this, follow Jonas' suggestion to switch the order of these functions and move register netdev to be the last step of PCI probe. Also, correct the error handling of rtw89_core_register_hw().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-53452](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53452.md) | Oct 1, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-53452](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53452.md) | Oct 1, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-53452](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53452.md) | Oct 1, 2025 |

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