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| author | Charles Han <hanchunchao@inspur.com> | 2024-12-27 17:20:46 +0800 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2025-01-15 10:34:27 -0500 |
| commit | b88655bc6593c6a7fdc1248b212d17e581c4334e (patch) | |
| tree | f351d1df46b820265855befc1ecb571965cf254f | |
| parent | 30209aeff75fe18cf01a63332a7a7f472877d445 (diff) | |
| download | linux-b88655bc6593c6a7fdc1248b212d17e581c4334e.tar.gz linux-b88655bc6593c6a7fdc1248b212d17e581c4334e.tar.bz2 linux-b88655bc6593c6a7fdc1248b212d17e581c4334e.zip | |
Bluetooth: btbcm: Fix NULL deref in btbcm_get_board_name()
devm_kstrdup() can return a NULL pointer on failure,but this
returned value in btbcm_get_board_name() is not checked.
Add NULL check in btbcm_get_board_name(), to handle kernel NULL
pointer dereference error.
Fixes: f9183eaad915 ("Bluetooth: btbcm: Use devm_kstrdup()")
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
| -rw-r--r-- | drivers/bluetooth/btbcm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c index a1153ada74d2..0a60660fc8ce 100644 --- a/drivers/bluetooth/btbcm.c +++ b/drivers/bluetooth/btbcm.c @@ -553,6 +553,9 @@ static const char *btbcm_get_board_name(struct device *dev) /* get rid of any '/' in the compatible string */ board_type = devm_kstrdup(dev, tmp, GFP_KERNEL); + if (!board_type) + return NULL; + strreplace(board_type, '/', '-'); return board_type; |