accel/amdxdna: Fix NULL pointer dereference of mgmt_chann

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In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix NULL pointer dereference of mgmt_chann mgmt_chann may be set to NULL if the firmware returns an unexpected error in aie2_send_mgmt_msg_wait(). This can later lead to a NULL pointer dereference in aie2_hw_stop(). Fix this by introducing a dedicated helper to destroy mgmt_chann and by adding proper NULL checks before accessing it.

Source published

25 Mar 2026 10:27:20 UTC

Source modified

15 Oct 2026 10:06:57 UTC

Observed here

23 Oct 2026 15:48:27 UTC

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