diff options
| author | Kees Cook <[email protected]> | 2025-05-21 20:46:15 +0000 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2025-05-27 06:25:43 +0000 |
| commit | 6b12e0a3c3c9565c7dc106e2a8b1d433b1aa8eb6 (patch) | |
| tree | e1b2ebd412bdfe544f8dd192b011f7bc9e0801b3 /net/core/dev_ioctl.c | |
| parent | net: core: Convert dev_set_mac_address() to struct sockaddr_storage (diff) | |
| download | kernel-6b12e0a3c3c9565c7dc106e2a8b1d433b1aa8eb6.tar.gz kernel-6b12e0a3c3c9565c7dc106e2a8b1d433b1aa8eb6.zip | |
rtnetlink: do_setlink: Use struct sockaddr_storage
Instead of a heap allocating a variably sized struct sockaddr and lying
about the type in the call to netif_set_mac_address(), use a stack
allocated struct sockaddr_storage. This lets us drop the cast and avoid
the allocation.
Putting "ss" on the stack means it will get a reused stack slot since
it is the same size (128B) as other existing single-scope stack variables,
like the vfinfo array (128B), so no additional stack space is used by
this function.
Acked-by: Gustavo A. R. Silva <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'net/core/dev_ioctl.c')
0 files changed, 0 insertions, 0 deletions