wifi: ath11k: fix warning when unbinding
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 94% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix warning when unbinding
If there is an error during some initialization related to firmware,
the buffers dp->tx_ring[i].tx_status are released.
However this is released again when the device is unbinded (ath11k_pci),
and we get:
WARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90
Call Trace:
free_large_kmalloc
ath11k_dp_free
ath11k_core_deinit
ath11k_pci_remove
...
The issue is always reproducible from a VM because the MSI addressing
initialization is failing.
In order to fix the issue, just set the buffers to NULL after releasing in
order to avoid the double free.
Productos afectados
Linux · LinuxReferencias
https://git.kernel.org/stable/c/051f954b94479d72222c9fbc82a3eef4777bca01https://git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43ehttps://git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469chttps://git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2https://git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0ahttps://git.kernel.org/stable/c/7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13https://git.kernel.org/stable/c/8b7a26b6681922a38cd5a7829ace61f8e54df9b7https://git.kernel.org/stable/c/e569a5cb401a267168621aa9a1e7f07fcc9612c3