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| author | jhb <jhb@FreeBSD.org> | 2016-12-05 19:37:15 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2016-12-05 19:37:15 +0000 |
| commit | 2d64e2dd58e247189656af25ac3b78211bd989f9 (patch) | |
| tree | a8074cd7f11cfe27793bf9fdd206ed7eb24deb73 /sys/dev/cxgbe/t4_main.c | |
| parent | ffbe83daeb7e1d777eb2bf92936486ca7431069a (diff) | |
| download | FreeBSD-src-2d64e2dd58e247189656af25ac3b78211bd989f9.zip FreeBSD-src-2d64e2dd58e247189656af25ac3b78211bd989f9.tar.gz | |
MFC 305667:
cxgbe(4): Avoid a NULL dereference in the clearstats ioctl handler.
Port softc's are not initialized when the adapter is in recovery mode.
Diffstat (limited to 'sys/dev/cxgbe/t4_main.c')
| -rw-r--r-- | sys/dev/cxgbe/t4_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c index 67cc887..898a515 100644 --- a/sys/dev/cxgbe/t4_main.c +++ b/sys/dev/cxgbe/t4_main.c @@ -8726,6 +8726,8 @@ t4_ioctl(struct cdev *dev, unsigned long cmd, caddr_t data, int fflag, if (port_id >= sc->params.nports) return (EINVAL); pi = sc->port[port_id]; + if (pi == NULL) + return (EIO); /* MAC stats */ t4_clr_port_stats(sc, pi->tx_chan); |
