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| author | Eric Dumazet <[email protected]> | 2017-08-16 17:36:47 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2017-08-16 23:28:47 +0000 |
| commit | 81fbfe8adaf38d4f5a98c19bebfd41c5d6acaee8 (patch) | |
| tree | d6b6fc17c19f0df3e916e55726dee279c055deb6 /net/unix/af_unix.c | |
| parent | dccp: defer ccid_hc_tx_delete() at dismantle time (diff) | |
| download | kernel-81fbfe8adaf38d4f5a98c19bebfd41c5d6acaee8.tar.gz kernel-81fbfe8adaf38d4f5a98c19bebfd41c5d6acaee8.zip | |
ptr_ring: use kmalloc_array()
As found by syzkaller, malicious users can set whatever tx_queue_len
on a tun device and eventually crash the kernel.
Lets remove the ALIGN(XXX, SMP_CACHE_BYTES) thing since a small
ring buffer is not fast anyway.
Fixes: 2e0ab8ca83c1 ("ptr_ring: array based FIFO for pointers")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: Dmitry Vyukov <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: Jason Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions