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linux/drivers/net/mctp
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XingWang Xiang 2b4707a149 net: mctp: i3c: serialize probe with bus removal 
mctp_i3c_probe() drops busdevs_lock after finding the matching bus. A
concurrent I3C_NOTIFY_BUS_REMOVE can then unregister and free the bus
netdev before probe passes its private data to mctp_i3c_add_device().
The latter consequently adds a list node through a freed mbus pointer.

Keep busdevs_lock held until the device has been added. This also
satisfies the __must_hold annotation on mctp_i3c_add_device().

Fixes: c8755b29b5 ("mctp i3c: MCTP I3C driver")
Signed-off-by: XingWang Xiang <v3rdant.xiang@gmail.com>
Acked-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
History 2026-09-05 09:39:00 +01:00
..
Kconfig net: mctp: usblib: Add initial kunit tests 2026-07-30 16:54:59 -07:00
Makefile net: mctp: usblib: Move RX transfer processing to a new mctp-usblib 2026-07-30 16:54:58 -07:00
mctp-i2c.c mctp: i2c: Use named initializers for struct i2c_device_id 2026-05-20 19:01:14 -07:00
mctp-i3c.c net: mctp: i3c: serialize probe with bus removal 2026-09-05 09:39:00 +01:00
mctp-serial.c mctp: serial: handle zero-length frames to prevent rx buffer overflow 2026-07-23 15:34:00 +02:00
mctp-usb.c net: mctp: usb: Allow multiple urbs in flight 2026-07-30 16:55:00 -07:00
mctp-usblib-test.c net: mctp: usblib: Add initial kunit tests 2026-07-30 16:54:59 -07:00
mctp-usblib.c net: mctp: usblib: Add initial kunit tests 2026-07-30 16:54:59 -07:00