{"api_version":"1","generated_at":"2026-11-11T05:23:01+00:00","cve":"CVE-2023-53532","urls":{"html":"https://cve.report/CVE-2023-53532","api":"https://cve.report/api/cve/CVE-2023-53532.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-53532","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-53532"},"summary":{"title":"wifi: ath11k: fix deinitialization of firmware resources","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix deinitialization of firmware resources\n\nCurrently, in ath11k_ahb_fw_resources_init(), iommu domain\nmapping is done only for the chipsets having fixed firmware\nmemory. Also, for such chipsets, mapping is done only if it\ndoes not have TrustZone support.\n\nDuring deinitialization, only if TrustZone support is not there,\niommu is unmapped back. However, for non fixed firmware memory\nchipsets, TrustZone support is not there and this makes the\ncondition check to true and it tries to unmap the memory which\nwas not mapped during initialization.\n\nThis leads to the following trace -\n\n[   83.198790] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n[   83.259537] Modules linked in: ath11k_ahb ath11k qmi_helpers\n.. snip ..\n[   83.280286] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   83.287228] pc : __iommu_unmap+0x30/0x140\n[   83.293907] lr : iommu_unmap+0x5c/0xa4\n[   83.298072] sp : ffff80000b3abad0\n.. snip ..\n[   83.369175] Call trace:\n[   83.376282]  __iommu_unmap+0x30/0x140\n[   83.378541]  iommu_unmap+0x5c/0xa4\n[   83.382360]  ath11k_ahb_fw_resource_deinit.part.12+0x2c/0xac [ath11k_ahb]\n[   83.385666]  ath11k_ahb_free_resources+0x140/0x17c [ath11k_ahb]\n[   83.392521]  ath11k_ahb_shutdown+0x34/0x40 [ath11k_ahb]\n[   83.398248]  platform_shutdown+0x20/0x2c\n[   83.403455]  device_shutdown+0x16c/0x1c4\n[   83.407621]  kernel_restart_prepare+0x34/0x3c\n[   83.411529]  kernel_restart+0x14/0x74\n[   83.415781]  __do_sys_reboot+0x1c4/0x22c\n[   83.419427]  __arm64_sys_reboot+0x1c/0x24\n[   83.423420]  invoke_syscall+0x44/0xfc\n[   83.427326]  el0_svc_common.constprop.3+0xac/0xe8\n[   83.430974]  do_el0_svc+0xa0/0xa8\n[   83.435659]  el0_svc+0x1c/0x44\n[   83.438957]  el0t_64_sync_handler+0x60/0x144\n[   83.441910]  el0t_64_sync+0x15c/0x160\n[   83.446343] Code: aa0103f4 f9400001 f90027a1 d2800001 (f94006a0)\n[   83.449903] ---[ end trace 0000000000000000 ]---\n\nThis can be reproduced by probing an AHB chipset which is not\nhaving a fixed memory region. During reboot (or rmmod) trace\ncan be seen.\n\nFix this issue by adding a condition check on firmware fixed memory\nhw_param as done in the counter initialization function.\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1","state":"PUBLISHED","assigner":"Linux","published_at":"2025-10-01 12:15:57","updated_at":"2026-11-05 21:17:25"},"problem_types":["CWE-908"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/a1548363582a8066edd4986f839d785f13dda3aa","name":"https://git.kernel.org/stable/c/a1548363582a8066edd4986f839d785f13dda3aa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0324300dce3412d4737b4ec5898d0188495a7caa","name":"https://git.kernel.org/stable/c/0324300dce3412d4737b4ec5898d0188495a7caa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8faf862d81ab197757761e87d0a99fbb96ab2cf0","name":"https://git.kernel.org/stable/c/8faf862d81ab197757761e87d0a99fbb96ab2cf0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a78ac33e3cb8822da64dd1af196e83664b332b0","name":"https://git.kernel.org/stable/c/5a78ac33e3cb8822da64dd1af196e83664b332b0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-53532","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53532","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9eec4947add999e1251bf14365a48a655b786a4 0324300dce3412d4737b4ec5898d0188495a7caa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9eec4947add999e1251bf14365a48a655b786a4 8faf862d81ab197757761e87d0a99fbb96ab2cf0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9eec4947add999e1251bf14365a48a655b786a4 a1548363582a8066edd4986f839d785f13dda3aa git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9eec4947add999e1251bf14365a48a655b786a4 5a78ac33e3cb8822da64dd1af196e83664b332b0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.28 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.2.15 6.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3.2 6.3.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"53532","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2023-53532","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T20:23:28.004263Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T20:31:14.038Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/ahb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0324300dce3412d4737b4ec5898d0188495a7caa","status":"affected","version":"f9eec4947add999e1251bf14365a48a655b786a4","versionType":"git"},{"lessThan":"8faf862d81ab197757761e87d0a99fbb96ab2cf0","status":"affected","version":"f9eec4947add999e1251bf14365a48a655b786a4","versionType":"git"},{"lessThan":"a1548363582a8066edd4986f839d785f13dda3aa","status":"affected","version":"f9eec4947add999e1251bf14365a48a655b786a4","versionType":"git"},{"lessThan":"5a78ac33e3cb8822da64dd1af196e83664b332b0","status":"affected","version":"f9eec4947add999e1251bf14365a48a655b786a4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/ath/ath11k/ahb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.19"},{"lessThan":"5.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.28","versionType":"semver"},{"lessThanOrEqual":"6.2.*","status":"unaffected","version":"6.2.15","versionType":"semver"},{"lessThanOrEqual":"6.3.*","status":"unaffected","version":"6.3.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.4","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.28","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.2.15","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.3.2","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.4","versionStartIncluding":"5.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix deinitialization of firmware resources\n\nCurrently, in ath11k_ahb_fw_resources_init(), iommu domain\nmapping is done only for the chipsets having fixed firmware\nmemory. Also, for such chipsets, mapping is done only if it\ndoes not have TrustZone support.\n\nDuring deinitialization, only if TrustZone support is not there,\niommu is unmapped back. However, for non fixed firmware memory\nchipsets, TrustZone support is not there and this makes the\ncondition check to true and it tries to unmap the memory which\nwas not mapped during initialization.\n\nThis leads to the following trace -\n\n[   83.198790] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n[   83.259537] Modules linked in: ath11k_ahb ath11k qmi_helpers\n.. snip ..\n[   83.280286] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   83.287228] pc : __iommu_unmap+0x30/0x140\n[   83.293907] lr : iommu_unmap+0x5c/0xa4\n[   83.298072] sp : ffff80000b3abad0\n.. snip ..\n[   83.369175] Call trace:\n[   83.376282]  __iommu_unmap+0x30/0x140\n[   83.378541]  iommu_unmap+0x5c/0xa4\n[   83.382360]  ath11k_ahb_fw_resource_deinit.part.12+0x2c/0xac [ath11k_ahb]\n[   83.385666]  ath11k_ahb_free_resources+0x140/0x17c [ath11k_ahb]\n[   83.392521]  ath11k_ahb_shutdown+0x34/0x40 [ath11k_ahb]\n[   83.398248]  platform_shutdown+0x20/0x2c\n[   83.403455]  device_shutdown+0x16c/0x1c4\n[   83.407621]  kernel_restart_prepare+0x34/0x3c\n[   83.411529]  kernel_restart+0x14/0x74\n[   83.415781]  __do_sys_reboot+0x1c4/0x22c\n[   83.419427]  __arm64_sys_reboot+0x1c/0x24\n[   83.423420]  invoke_syscall+0x44/0xfc\n[   83.427326]  el0_svc_common.constprop.3+0xac/0xe8\n[   83.430974]  do_el0_svc+0xa0/0xa8\n[   83.435659]  el0_svc+0x1c/0x44\n[   83.438957]  el0t_64_sync_handler+0x60/0x144\n[   83.441910]  el0t_64_sync+0x15c/0x160\n[   83.446343] Code: aa0103f4 f9400001 f90027a1 d2800001 (f94006a0)\n[   83.449903] ---[ end trace 0000000000000000 ]---\n\nThis can be reproduced by probing an AHB chipset which is not\nhaving a fixed memory region. During reboot (or rmmod) trace\ncan be seen.\n\nFix this issue by adding a condition check on firmware fixed memory\nhw_param as done in the counter initialization function.\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1"}],"providerMetadata":{"dateUpdated":"2026-05-11T19:46:47.827Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0324300dce3412d4737b4ec5898d0188495a7caa"},{"url":"https://git.kernel.org/stable/c/8faf862d81ab197757761e87d0a99fbb96ab2cf0"},{"url":"https://git.kernel.org/stable/c/a1548363582a8066edd4986f839d785f13dda3aa"},{"url":"https://git.kernel.org/stable/c/5a78ac33e3cb8822da64dd1af196e83664b332b0"}],"title":"wifi: ath11k: fix deinitialization of firmware resources","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-53532","datePublished":"2025-10-01T11:46:16.713Z","dateReserved":"2025-10-01T11:39:39.409Z","dateUpdated":"2026-11-05T20:31:14.038Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-10-01 12:15:57","lastModifiedDate":"2026-11-05 21:17:25","problem_types":["CWE-908"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:23:28.004263Z","id":"CVE-2023-53532","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.28","matchCriteriaId":"8822B63E-7DEA-4F9C-906D-646BF96763F8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.2.15","matchCriteriaId":"3844A90B-940D-46C3-8D7B-9FF63F1AFC2F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.3.2","matchCriteriaId":"38F6F330-91A0-4675-8B90-6F950471A7CC"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"53532","Ordinal":"1","Title":"wifi: ath11k: fix deinitialization of firmware resources","CVE":"CVE-2023-53532","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"53532","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix deinitialization of firmware resources\n\nCurrently, in ath11k_ahb_fw_resources_init(), iommu domain\nmapping is done only for the chipsets having fixed firmware\nmemory. Also, for such chipsets, mapping is done only if it\ndoes not have TrustZone support.\n\nDuring deinitialization, only if TrustZone support is not there,\niommu is unmapped back. However, for non fixed firmware memory\nchipsets, TrustZone support is not there and this makes the\ncondition check to true and it tries to unmap the memory which\nwas not mapped during initialization.\n\nThis leads to the following trace -\n\n[   83.198790] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n[   83.259537] Modules linked in: ath11k_ahb ath11k qmi_helpers\n.. snip ..\n[   83.280286] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   83.287228] pc : __iommu_unmap+0x30/0x140\n[   83.293907] lr : iommu_unmap+0x5c/0xa4\n[   83.298072] sp : ffff80000b3abad0\n.. snip ..\n[   83.369175] Call trace:\n[   83.376282]  __iommu_unmap+0x30/0x140\n[   83.378541]  iommu_unmap+0x5c/0xa4\n[   83.382360]  ath11k_ahb_fw_resource_deinit.part.12+0x2c/0xac [ath11k_ahb]\n[   83.385666]  ath11k_ahb_free_resources+0x140/0x17c [ath11k_ahb]\n[   83.392521]  ath11k_ahb_shutdown+0x34/0x40 [ath11k_ahb]\n[   83.398248]  platform_shutdown+0x20/0x2c\n[   83.403455]  device_shutdown+0x16c/0x1c4\n[   83.407621]  kernel_restart_prepare+0x34/0x3c\n[   83.411529]  kernel_restart+0x14/0x74\n[   83.415781]  __do_sys_reboot+0x1c4/0x22c\n[   83.419427]  __arm64_sys_reboot+0x1c/0x24\n[   83.423420]  invoke_syscall+0x44/0xfc\n[   83.427326]  el0_svc_common.constprop.3+0xac/0xe8\n[   83.430974]  do_el0_svc+0xa0/0xa8\n[   83.435659]  el0_svc+0x1c/0x44\n[   83.438957]  el0t_64_sync_handler+0x60/0x144\n[   83.441910]  el0t_64_sync+0x15c/0x160\n[   83.446343] Code: aa0103f4 f9400001 f90027a1 d2800001 (f94006a0)\n[   83.449903] ---[ end trace 0000000000000000 ]---\n\nThis can be reproduced by probing an AHB chipset which is not\nhaving a fixed memory region. During reboot (or rmmod) trace\ncan be seen.\n\nFix this issue by adding a condition check on firmware fixed memory\nhw_param as done in the counter initialization function.\n\nTested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1","Type":"Description","Title":"wifi: ath11k: fix deinitialization of firmware resources"}]}}}