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| author | Pontus Fuchs <pontus.fuchs@gmail.com> | 2011-10-18 09:23:41 +0200 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2011-12-01 15:55:42 +0200 |
| commit | 2131d3c2f99b081806fdae7662c92fe6acda52af (patch) | |
| tree | 8250d3c6a0062f9561dbaefa0c30bb3ea2247f7f /drivers/net/wireless/wl12xx/cmd.c | |
| parent | e4da3fbfbd1de56d2367653e3823e6445e49f8a9 (diff) | |
| download | linux-2131d3c2f99b081806fdae7662c92fe6acda52af.tar.gz linux-2131d3c2f99b081806fdae7662c92fe6acda52af.tar.bz2 linux-2131d3c2f99b081806fdae7662c92fe6acda52af.zip | |
wl12xx: Validate FEM index from ini file and FW
Check for out of bound FEM index to prevent reading beyond ini
memory end.
Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Cc: stable@kernel.org
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/cmd.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/cmd.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c index afd597387e7e..e0d217979485 100644 --- a/drivers/net/wireless/wl12xx/cmd.c +++ b/drivers/net/wireless/wl12xx/cmd.c @@ -121,6 +121,11 @@ int wl1271_cmd_general_parms(struct wl1271 *wl) if (!wl->nvs) return -ENODEV; + if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) { + wl1271_warning("FEM index from INI out of bounds"); + return -EINVAL; + } + gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL); if (!gen_parms) return -ENOMEM; @@ -144,6 +149,12 @@ int wl1271_cmd_general_parms(struct wl1271 *wl) gp->tx_bip_fem_manufacturer = gen_parms->general_params.tx_bip_fem_manufacturer; + if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) { + wl1271_warning("FEM index from FW out of bounds"); + ret = -EINVAL; + goto out; + } + wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n", answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer); @@ -163,6 +174,11 @@ int wl128x_cmd_general_parms(struct wl1271 *wl) if (!wl->nvs) return -ENODEV; + if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) { + wl1271_warning("FEM index from ini out of bounds"); + return -EINVAL; + } + gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL); if (!gen_parms) return -ENOMEM; @@ -187,6 +203,12 @@ int wl128x_cmd_general_parms(struct wl1271 *wl) gp->tx_bip_fem_manufacturer = gen_parms->general_params.tx_bip_fem_manufacturer; + if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) { + wl1271_warning("FEM index from FW out of bounds"); + ret = -EINVAL; + goto out; + } + wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n", answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer); |