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(parent: b1871fd) | patch
net/smc: Fix NULL pointer dereference in smc_pnet_find_ib()
authorKarsten Graul <kgraul@linux.ibm.com>
Fri, 8 Apr 2022 15:10:34 +0000 (17:10 +0200)
committerJakub Kicinski <kuba@kernel.org>
Tue, 12 Apr 2022 01:28:03 +0000 (18:28 -0700)
commitd22f4f977236f97e01255a80bca2ea93a8094fc8
tree44681c5acf227653aaf1a6dd1dae574c8f024b3ftree | snapshot
parentb1871fd48efc567650dbdc974e5a2342a03fe0d2commit | diff
net/smc: Fix NULL pointer dereference in smc_pnet_find_ib()

dev_name() was called with dev.parent as argument but without to
NULL-check it before.
Solve this by checking the pointer before the call to dev_name().

Fixes: af5f60c7e3d5 ("net/smc: allow PCI IDs as ib device names in the pnet table")
Reported-by: syzbot+03e3e228510223dabd34@syzkaller.appspotmail.com
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/smc/smc_pnet.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git