Linux Kernel up to 5.10.110/5.15.33/5.16.19/5.17.2 ath11k netif_napi_del denial of service

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.10.110/5.15.33/5.16.19/5.17.2. The impacted element is the function netif_napi_del of the component ath11k Module. Such manipulation leads to denial of service. This vulnerability is listed as CVE-2022-49131. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.110/5.15.33/5.16.19/5.17.2. It has been rated as critical. Affected by this issue is the function netif_napi_del of the component ath11k Module. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ath11k: fix kernel panic during unload/load ath11k modules Call netif_napi_del() from ath11k_ahb_free_ext_irq() to fix the following kernel panic when unload/load ath11k modules for few iterations. [ 971.201365] Unable to handle kernel paging request at virtual address 6d97a208 [ 971.204227] pgd = 594c2919 [ 971.211478] [6d97a208] *pgd=00000000 [ 971.214120] Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 971.412024] CPU: 2 PID: 4435 Comm: insmod Not tainted 5.4.89 #0 [ 971.434256] Hardware name: Generic DT based system [ 971.440165] PC is at napi_by_id+0x10/0x40 [ 971.445019] LR is at netif_napi_add+0x160/0x1dc [ 971.743127] (napi_by_id) from [] (netif_napi_add+0x160/0x1dc) [ 971.751295] (netif_napi_add) from [] (ath11k_ahb_config_irq+0xf8/0x414 [ath11k_ahb]) [ 971.759164] (ath11k_ahb_config_irq [ath11k_ahb]) from [] (ath11k_ahb_probe+0x40c/0x51c [ath11k_ahb]) [ 971.768567] (ath11k_ahb_probe [ath11k_ahb]) from [] (platform_drv_probe+0x48/0x94) [ 971.779670] (platform_drv_probe) from [] (really_probe+0x1c8/0x450) [ 971.789389] (really_probe) from [] (driver_probe_device+0x15c/0x1b8) [ 971.797547] (driver_probe_device) from [] (device_driver_attach+0x44/0x60) [ 971.805795] (device_driver_attach) from [] (__driver_attach+0x124/0x140) [ 971.814822] (__driver_attach) from [] (bus_for_each_dev+0x58/0xa4) [ 971.823328] (bus_for_each_dev) from [] (bus_add_driver+0xf0/0x1e8) [ 971.831662] (bus_add_driver) from [] (driver_register+0xa8/0xf0) [ 971.839822] (driver_register) from [] (do_one_initcall+0x78/0x1ac) [ 971.847638] (do_one_initcall) from [] (do_init_module+0x54/0x200) [ 971.855968] (do_init_module) from [] (load_module+0x1e30/0x1ffc) [ 971.864126] (load_module) from [] (sys_init_module+0x134/0x17c) [ 971.871852] (sys_init_module) from [] (ret_fast_syscall+0x0/0x50) Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.6.0.1-00760-QCAHKSWPL_SILICONZ-1

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-49131 since 02/26/2025. The exploitation is known to be difficult. Technical details are known, but there is no available exploit.

Upgrading to version 5.10.111, 5.15.34, 5.16.20 or 5.17.3 eliminates this vulnerability. Applying the patch c6a815f5abdf324108799829dd19ea62fef4bf95/c4b7653af62a9a5efe2856183d1f987c5429758b/699e8c87e5c406af0f0606f40eeebd248c51b702/38e488db194dc16d2eb23c77c6a8c04ff583c40d/22b59cb965f79ee1accf83172441c9ca0ecb632a is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.110
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10
• 5.16.11
• 5.16.12
• 5.16.13
• 5.16.14
• 5.16.15
• 5.16.16
• 5.16.17
• 5.16.18
• 5.16.19
• 5.17.0
• 5.17.1
• 5.17.2

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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