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ath5k: fix buffer overrun in rate debug code 

char bname[5] is too small for the string "X GHz" when the null
terminator is taken into account.  Thus, turning on rate debugging
can crash unless we have lucky stack alignment.

Cc: stable@kernel.org
Reported-by: Paride Legovini <legovini@spiro.fisica.unipd.it>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bob Copeland 2009-04-27 22:12:43 -04:00 committed by John W. Linville
parent 74aa9be0ea
commit b7fcb5c4a4
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/ath5k/debug.c
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@ -424,7 +424,7 @@ ath5k_debug_dump_bands(struct ath5k_softc *sc)
for (b = 0; b < IEEE80211_NUM_BANDS; b++) { for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
struct ieee80211_supported_band *band = &sc->sbands[b]; struct ieee80211_supported_band *band = &sc->sbands[b];
char bname[5]; char bname[6];
switch (band->band) { switch (band->band) {
case IEEE80211_BAND_2GHZ: case IEEE80211_BAND_2GHZ:
strcpy(bname, "2 GHz"); strcpy(bname, "2 GHz");