{"id":"CVE-2025-38647","state":"PUBLISHED","title":"wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi\n\nThe following assertion is triggered on the rtw89 driver startup. It\nlooks meaningless to hold wiphy lock on the early init stage so drop the\nassertion.\n\n WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy)\n Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024\n RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n Call Trace:\n  <TASK>\n  rtw89_sar_init+0x68/0x2c0 [rtw89_core]\n  rtw89_core_init+0x188e/0x1e50 [rtw89_core]\n  rtw89_pci_probe+0x530/0xb50 [rtw89_pci]\n  local_pci_probe+0xd9/0x190\n  pci_call_probe+0x183/0x540\n  pci_device_probe+0x171/0x2c0\n  really_probe+0x1e1/0x890\n  __driver_probe_device+0x18c/0x390\n  driver_probe_device+0x4a/0x120\n  __driver_attach+0x1a0/0x530\n  bus_for_each_dev+0x10b/0x190\n  bus_add_driver+0x2eb/0x540\n  driver_register+0x1a3/0x3a0\n  do_one_initcall+0xd5/0x450\n  do_init_module+0x2cc/0x8f0\n  init_module_from_file+0xe1/0x150\n  idempotent_init_module+0x226/0x760\n  __x64_sys_finit_module+0xcd/0x150\n  do_syscall_64+0x94/0x380\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFound by Linux Verification Center (linuxtesting.org).","publishedAt":"2025-08-22T16:00:52.106Z","updatedAt":"2026-05-11T21:32:15.955Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"88ca3107d2ce06448018e0571f7c0f1b40f57b55","status":"affected","lessThan":"f7ac6df92eee030151476078069dc3eb0002dfb0","versionType":"git"},{"version":"88ca3107d2ce06448018e0571f7c0f1b40f57b55","status":"affected","lessThan":"6fe21445f7e801de5527d420f8e25e97b0cdd7e2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw89/sar.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw89/sar.c"]}],"references":["https://git.kernel.org/stable/c/f7ac6df92eee030151476078069dc3eb0002dfb0","https://git.kernel.org/stable/c/6fe21445f7e801de5527d420f8e25e97b0cdd7e2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38647.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38647","state":"PUBLISHED","datePublished":"2025-08-22T16:00:52.106Z","dateUpdated":"2026-05-11T21:32:15.955Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.030Z"},"containers":{"cna":{"title":"wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi\n\nThe following assertion is triggered on the rtw89 driver startup. It\nlooks meaningless to hold wiphy lock on the early init stage so drop the\nassertion.\n\n WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy)\n Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024\n RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n Call Trace:\n  <TASK>\n  rtw89_sar_init+0x68/0x2c0 [rtw89_core]\n  rtw89_core_init+0x188e/0x1e50 [rtw89_core]\n  rtw89_pci_probe+0x530/0xb50 [rtw89_pci]\n  local_pci_probe+0xd9/0x190\n  pci_call_probe+0x183/0x540\n  pci_device_probe+0x171/0x2c0\n  really_probe+0x1e1/0x890\n  __driver_probe_device+0x18c/0x390\n  driver_probe_device+0x4a/0x120\n  __driver_attach+0x1a0/0x530\n  bus_for_each_dev+0x10b/0x190\n  bus_add_driver+0x2eb/0x540\n  driver_register+0x1a3/0x3a0\n  do_one_initcall+0xd5/0x450\n  do_init_module+0x2cc/0x8f0\n  init_module_from_file+0xe1/0x150\n  idempotent_init_module+0x226/0x760\n  __x64_sys_finit_module+0xcd/0x150\n  do_syscall_64+0x94/0x380\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFound by Linux Verification Center (linuxtesting.org)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"88ca3107d2ce06448018e0571f7c0f1b40f57b55","status":"affected","lessThan":"f7ac6df92eee030151476078069dc3eb0002dfb0","versionType":"git"},{"version":"88ca3107d2ce06448018e0571f7c0f1b40f57b55","status":"affected","lessThan":"6fe21445f7e801de5527d420f8e25e97b0cdd7e2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw89/sar.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtw89/sar.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f7ac6df92eee030151476078069dc3eb0002dfb0"},{"url":"https://git.kernel.org/stable/c/6fe21445f7e801de5527d420f8e25e97b0cdd7e2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:32:15.955Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}