| Message ID | 20220131160713.245637-3-marcan@marcan.st (mailing list archive) |
|---|---|
| State | Handled Elsewhere, archived |
| Headers | show |
| Series | misc brcmfmac fixes (M1/T2 series spin-off) | expand |
On Mon, Jan 31, 2022 at 6:07 PM Hector Martin <marcan@marcan.st> wrote: > > If boardrev is missing from the NVRAM we add a default one, but this > might need more space in the output buffer than was allocated. Ensure > we have enough padding for this in the buffer. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> > Fixes: 46f2b38a91b0 ("brcmfmac: insert default boardrev in nvram data if missing") > Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> > Cc: stable@vger.kernel.org > Signed-off-by: Hector Martin <marcan@marcan.st> > --- > drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > index 0eb13e5df517..1001c8888bfe 100644 > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c > @@ -207,6 +207,8 @@ static int brcmf_init_nvram_parser(struct nvram_parser *nvp, > size = BRCMF_FW_MAX_NVRAM_SIZE; > else > size = data_len; > + /* Add space for properties we may add */ > + size += strlen(BRCMF_FW_DEFAULT_BOARDREV) + 1; > /* Alloc for extra 0 byte + roundup by 4 + length field */ > size += 1 + 3 + sizeof(u32); > nvp->nvram = kzalloc(size, GFP_KERNEL); > -- > 2.33.0 >
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c index 0eb13e5df517..1001c8888bfe 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c @@ -207,6 +207,8 @@ static int brcmf_init_nvram_parser(struct nvram_parser *nvp, size = BRCMF_FW_MAX_NVRAM_SIZE; else size = data_len; + /* Add space for properties we may add */ + size += strlen(BRCMF_FW_DEFAULT_BOARDREV) + 1; /* Alloc for extra 0 byte + roundup by 4 + length field */ size += 1 + 3 + sizeof(u32); nvp->nvram = kzalloc(size, GFP_KERNEL);
If boardrev is missing from the NVRAM we add a default one, but this might need more space in the output buffer than was allocated. Ensure we have enough padding for this in the buffer. Fixes: 46f2b38a91b0 ("brcmfmac: insert default boardrev in nvram data if missing") Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Cc: stable@vger.kernel.org Signed-off-by: Hector Martin <marcan@marcan.st> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 2 ++ 1 file changed, 2 insertions(+)