diff options
| author | Pei Xiao <xiaopei01@kylinos.cn> | 2024-10-30 11:20:58 +0800 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2024-11-06 14:18:27 +0800 |
| commit | 81df5ed446b448bdc327b7c7f0b50121fc1f4aa2 (patch) | |
| tree | bdf90cba0a21f5353e58526202fb066df0457059 | |
| parent | 95fa94562298deb37c407c9ebd1e57ab14fe9f13 (diff) | |
| download | lwn-81df5ed446b448bdc327b7c7f0b50121fc1f4aa2.tar.gz lwn-81df5ed446b448bdc327b7c7f0b50121fc1f4aa2.zip | |
wifi: rtw89: coex: check NULL return of kmalloc in btc_fw_set_monreg()
kmalloc may fail, return value might be NULL and will cause
NULL pointer dereference. Add check NULL return of kmalloc in
btc_fw_set_monreg().
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Fixes: b952cb0a6e2d ("wifi: rtw89: coex: Add register monitor report v7 format")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/516a91f3997534f708af43c7592cbafdd53dd599.1730253508.git.xiaopei01@kylinos.cn
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/coex.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/coex.c b/drivers/net/wireless/realtek/rtw89/coex.c index 8a65722dd1fd..8398bd007aaf 100644 --- a/drivers/net/wireless/realtek/rtw89/coex.c +++ b/drivers/net/wireless/realtek/rtw89/coex.c @@ -2507,6 +2507,8 @@ static void btc_fw_set_monreg(struct rtw89_dev *rtwdev) if (ver->fcxmreg == 7) { sz = struct_size(v7, regs, n); v7 = kmalloc(sz, GFP_KERNEL); + if (!v7) + return; v7->type = RPT_EN_MREG; v7->fver = ver->fcxmreg; v7->len = n; @@ -2521,6 +2523,8 @@ static void btc_fw_set_monreg(struct rtw89_dev *rtwdev) } else { sz = struct_size(v1, regs, n); v1 = kmalloc(sz, GFP_KERNEL); + if (!v1) + return; v1->fver = ver->fcxmreg; v1->reg_num = n; memcpy(v1->regs, chip->mon_reg, flex_array_size(v1, regs, n)); |