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In my previous commit to validate a policy I neglected to
actually add one to the few drivers using vendor commands,
fix that now.
Reported-by: Tony Lindgren <tony@atomide.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Fixes: 901bb9891855 ("nl80211: require and validate vendor command policy")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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With ISC license text in place under the LICENSES folder switch
to using the SPDX license identifier to refer to the ISC license.
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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If "ret_len" is negative then it could lead to a NULL dereference.
The "ret_len" value comes from nl80211_vendor_cmd(), if it's negative
then we don't allocate the "dcmd_buf" buffer. Then we pass "ret_len" to
brcmf_fil_cmd_data_set() where it is cast to a very high u32 value.
Most of the functions in that call tree check whether the buffer we pass
is NULL but there are at least a couple places which don't such as
brcmf_dbg_hex_dump() and brcmf_msgbuf_query_dcmd(). We memcpy() to and
from the buffer so it would result in a NULL dereference.
The fix is to change the types so that "ret_len" can't be negative. (If
we memcpy() zero bytes to NULL, that's a no-op and doesn't cause an
issue).
Fixes: 1bacb0487d0e ("brcmfmac: replace cfg80211 testmode with vendor command")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Part of reorganising wireless drivers directory and Kconfig. Note that I had to
edit Makefiles from subdirectories to use the new location.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Johannes Berg
Arend van Spriel
Dan Carpenter
Kalle Valo