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wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 22 Jul 2022 06:37:07 +0000 (09:37 +0300)
committerFelix Fietkau <nbd@nbd.name>
Thu, 15 Sep 2022 10:53:59 +0000 (12:53 +0200)
commite7de4b4979bd8d313ec837931dde936653ca82ea
treebca8ac7b6eaa3684b59877273c8f54ffc9fd9821
parentb5ee771c84082b4e54cc39d9d9a2dd239e4f6b86
wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()

Don't dereference "sar_root" after it has been freed.

Fixes: f965333e491e ("mt76: mt7921: introduce ACPI SAR support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
drivers/net/wireless/mediatek/mt76/mt7921/acpi_sar.c