CVE-2022-49523

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49523
In the Linux kernel, the following vulnerability has been resolved: ath11k: disable spectral scan during spectral deinit When ath11k modules are removed using rmmod with spectral scan enabled, crash is observed. Different crash trace is observed for each crash. Send spectral scan disable WMI command to firmware before cleaning the spectral dbring in the spectral_deinit API to avoid this crash. call trace from one of the crash observed: [ 1252.880802] Unable to handle kernel NULL pointer dereference at virtual address 00000008 [ 1252.882722] pgd = 0f42e886 [ 1252.890955] [00000008] *pgd=00000000 [ 1252.893478] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 1253.093035] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.89 #0 [ 1253.115261] Hardware name: Generic DT based system [ 1253.121149] PC is at ath11k_spectral_process_data+0x434/0x574 [ath11k] [ 1253.125940] LR is at 0x88e31017 [ 1253.132448] pc : [<7f9387b8>] lr : [<88e31017>] psr: a0000193 [ 1253.135488] sp : 80d01bc8 ip : 00000001 fp : 970e0000 [ 1253.141737] r10: 88e31000 r9 : 970ec000 r8 : 00000080 [ 1253.146946] r7 : 94734040 r6 : a0000113 r5 : 00000057 r4 : 00000000 [ 1253.152159] r3 : e18cb694 r2 : 00000217 r1 : 1df1f000 r0 : 00000001 [ 1253.158755] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1253.165266] Control: 10c0383d Table: 5e71006a DAC: 00000055 [ 1253.172472] Process swapper/0 (pid: 0, stack limit = 0x60870141) [ 1253.458055] [<7f9387b8>] (ath11k_spectral_process_data [ath11k]) from [<7f917fdc>] (ath11k_dbring_buffer_release_event+0x214/0x2e4 [ath11k]) [ 1253.466139] [<7f917fdc>] (ath11k_dbring_buffer_release_event [ath11k]) from [<7f8ea3c4>] (ath11k_wmi_tlv_op_rx+0x1840/0x29cc [ath11k]) [ 1253.478807] [<7f8ea3c4>] (ath11k_wmi_tlv_op_rx [ath11k]) from [<7f8fe868>] (ath11k_htc_rx_completion_handler+0x180/0x4e0 [ath11k]) [ 1253.490699] [<7f8fe868>] (ath11k_htc_rx_completion_handler [ath11k]) from [<7f91308c>] (ath11k_ce_per_engine_service+0x2c4/0x3b4 [ath11k]) [ 1253.502386] [<7f91308c>] (ath11k_ce_per_engine_service [ath11k]) from [<7f9a4198>] (ath11k_pci_ce_tasklet+0x28/0x80 [ath11k_pci]) [ 1253.514811] [<7f9a4198>] (ath11k_pci_ce_tasklet [ath11k_pci]) from [<8032227c>] (tasklet_action_common.constprop.2+0x64/0xe8) [ 1253.526476] [<8032227c>] (tasklet_action_common.constprop.2) from [<803021e8>] (__do_softirq+0x130/0x2d0) [ 1253.537756] [<803021e8>] (__do_softirq) from [<80322610>] (irq_exit+0xcc/0xe8) [ 1253.547304] [<80322610>] (irq_exit) from [<8036a4a4>] (__handle_domain_irq+0x60/0xb4) [ 1253.554428] [<8036a4a4>] (__handle_domain_irq) from [<805eb348>] (gic_handle_irq+0x4c/0x90) [ 1253.562321] [<805eb348>] (gic_handle_irq) from [<80301a78>] (__irq_svc+0x58/0x8c) Tested-on: QCN6122 hw1.0 AHB WLAN.HK.2.6.0.1-00851-QCAHKSWPL_SILICONZ-1

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/161c64de239c7018e0295e7e0520a19f00aa32dc Patch
https://git.kernel.org/stable/c/451b9076903a057b7b8d5b24dc84b3e436a1c743 Patch
https://git.kernel.org/stable/c/4b9c54caef58d2b55074710952cda70540722c01 Patch
https://git.kernel.org/stable/c/60afa4f4e1350c876d8a061182a70c224de275dd Patch
https://git.kernel.org/stable/c/8f15e67af9bec5a69e815e0230a70cffddae371a Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

17 Mar 2025, 19:53

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ath11k: deshabilitar el escaneo espectral durante la desinicializacion espectral Cuando se eliminan los módulos ath11k usando rmmod con el escaneo espectral habilitado, se observa un bloqueo. Se observa un seguimiento de bloqueo diferente para cada bloqueo. Envíe el comando WMI de deshabilitación del escaneo espectral al firmware antes de limpiar el anillo de base espectral en la API spectral_deinit para evitar este bloqueo. seguimiento de llamada de uno de los fallos observados: [ 1252.880802] No se puede gestionar la desreferencia del puntero NULL del núcleo en la dirección virtual 00000008 [ 1252.882722] pgd = 0f42e886 [ 1252.890955] [00000008] *pgd=00000000 [ 1252.893478] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 1253.093035] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.89 #0 [ 1253.115261] Hardware name: Generic DT based system [ 1253.121149] PC is at ath11k_spectral_process_data+0x434/0x574 [ath11k] [ 1253.125940] LR is at 0x88e31017 [ 1253.132448] pc : [&lt;7f9387b8&gt;] lr : [&lt;88e31017&gt;] psr: a0000193 [ 1253.135488] sp : 80d01bc8 ip : 00000001 fp : 970e0000 [ 1253.141737] r10: 88e31000 r9 : 970ec000 r8 : 00000080 [ 1253.146946] r7 : 94734040 r6 : a0000113 r5 : 00000057 r4 : 00000000 [ 1253.152159] r3 : e18cb694 r2 : 00000217 r1 : 1df1f000 r0 : 00000001 [ 1253.158755] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user [ 1253.165266] Control: 10c0383d Table: 5e71006a DAC: 00000055 [ 1253.172472] Process swapper/0 (pid: 0, stack limit = 0x60870141) [ 1253.458055] [&lt;7f9387b8&gt;] (ath11k_spectral_process_data [ath11k]) from [&lt;7f917fdc&gt;] (ath11k_dbring_buffer_release_event+0x214/0x2e4 [ath11k]) [ 1253.466139] [&lt;7f917fdc&gt;] (ath11k_dbring_buffer_release_event [ath11k]) from [&lt;7f8ea3c4&gt;] (ath11k_wmi_tlv_op_rx+0x1840/0x29cc [ath11k]) [ 1253.478807] [&lt;7f8ea3c4&gt;] (ath11k_wmi_tlv_op_rx [ath11k]) from [&lt;7f8fe868&gt;] (ath11k_htc_rx_completion_handler+0x180/0x4e0 [ath11k]) [ 1253.490699] [&lt;7f8fe868&gt;] (ath11k_htc_rx_completion_handler [ath11k]) from [&lt;7f91308c&gt;] (ath11k_ce_per_engine_service+0x2c4/0x3b4 [ath11k]) [ 1253.502386] [&lt;7f91308c&gt;] (ath11k_ce_per_engine_service [ath11k]) from [&lt;7f9a4198&gt;] (ath11k_pci_ce_tasklet+0x28/0x80 [ath11k_pci]) [ 1253.514811] [&lt;7f9a4198&gt;] (ath11k_pci_ce_tasklet [ath11k_pci]) from [&lt;8032227c&gt;] (tasklet_action_common.constprop.2+0x64/0xe8) [ 1253.526476] [&lt;8032227c&gt;] (tasklet_action_common.constprop.2) from [&lt;803021e8&gt;] (__do_softirq+0x130/0x2d0) [ 1253.537756] [&lt;803021e8&gt;] (__do_softirq) from [&lt;80322610&gt;] (irq_exit+0xcc/0xe8) [ 1253.547304] [&lt;80322610&gt;] (irq_exit) from [&lt;8036a4a4&gt;] (__handle_domain_irq+0x60/0xb4) [ 1253.554428] [&lt;8036a4a4&gt;] (__handle_domain_irq) from [&lt;805eb348&gt;] (gic_handle_irq+0x4c/0x90) [ 1253.562321] [&lt;805eb348&gt;] (gic_handle_irq) from [&lt;80301a78&gt;] (__irq_svc+0x58/0x8c) Tested-on: QCN6122 hw1.0 AHB WLAN.HK.2.6.0.1-00851-QCAHKSWPL_SILICONZ-1
References () https://git.kernel.org/stable/c/161c64de239c7018e0295e7e0520a19f00aa32dc - () https://git.kernel.org/stable/c/161c64de239c7018e0295e7e0520a19f00aa32dc - Patch
References () https://git.kernel.org/stable/c/451b9076903a057b7b8d5b24dc84b3e436a1c743 - () https://git.kernel.org/stable/c/451b9076903a057b7b8d5b24dc84b3e436a1c743 - Patch
References () https://git.kernel.org/stable/c/4b9c54caef58d2b55074710952cda70540722c01 - () https://git.kernel.org/stable/c/4b9c54caef58d2b55074710952cda70540722c01 - Patch
References () https://git.kernel.org/stable/c/60afa4f4e1350c876d8a061182a70c224de275dd - () https://git.kernel.org/stable/c/60afa4f4e1350c876d8a061182a70c224de275dd - Patch
References () https://git.kernel.org/stable/c/8f15e67af9bec5a69e815e0230a70cffddae371a - () https://git.kernel.org/stable/c/8f15e67af9bec5a69e815e0230a70cffddae371a - Patch

26 Feb 2025, 07:01

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:01

Updated : 2025-03-17 19:53

NVD link : CVE-2022-49523

Mitre link : CVE-2022-49523

CVE.ORG link : CVE-2022-49523

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference