CVE-2026-90192: falha em Linux
mailbox: qcom-cpucp: handle NULL data in send_data callback
Publicada em
3Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackepss 0.2%
probabilidade de exploração
0.2%top 90% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
mailbox: qcom-cpucp: handle NULL data in send_data callback
mailbox_clear_channel() calls mbox_send_message() with NULL data to
notify the remote side that the RX channel has been cleared.
qcom_cpucp_mbox_send_data() blindly dereferenced the data pointer,
causing a NULL pointer dereference kernel panic when invoked from
this path under PREEMPT_RT.
Add an explicit NULL check and return early without writing to the
TX register, which is the correct behaviour for a channel-clear
notification.
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Linux · LinuxCVEs relacionadas — Linux
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