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![]() rose_send_frame() dereferences `neigh->dev` when called from
rose_transmit_clear_request(), and the first occurrence of the
`neigh` is in rose_loopback_timer() as `rose_loopback_neigh`,
and it is initialized in rose_add_loopback_neigh() as NULL.
i.e when `rose_loopback_neigh` used in rose_loopback_timer()
its `->dev` was still NULL and rose_loopback_timer() was calling
rose_rx_call_request() without checking for NULL.
- net/rose/rose_link.c
This bug seems to get triggered in this line:
rose_call = (ax25_address *)neigh->dev->dev_addr;
Fix it by adding NULL checking for `rose_loopback_neigh->dev`
in rose_loopback_timer().
Fixes:
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---|---|---|
.. | ||
af_rose.c | ||
Makefile | ||
rose_dev.c | ||
rose_in.c | ||
rose_link.c | ||
rose_loopback.c | ||
rose_out.c | ||
rose_route.c | ||
rose_subr.c | ||
rose_timer.c | ||
sysctl_net_rose.c |