On Mon, 2012-11-26 at 14:57 -0200, Herton Ronaldo Krzesinski wrote: > 3.5.7u1 -stable review patch. If anyone has any objections, please let me > know. > > ------------------ > > From: Stanislav Yakovlev <[email protected]> > > commit bf11315eeda510ea4fc1a2bf972d8155d31d89b4 upstream. > > The driver does not count space of radiotap fields when allocating skb for > radiotap packet. This leads to kernel panic with the following call trace: > > ... > [67607.676067] [<c152f90f>] error_code+0x67/0x6c > [67607.676067] [<c142f831>] ? skb_put+0x91/0xa0 > [67607.676067] [<f8cf5e5b>] ? ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] > [67607.676067] [<f8cf5e5b>] ipw_handle_promiscuous_tx+0x16b/0x2d0 [ipw2200] > [67607.676067] [<f8cf899b>] ipw_net_hard_start_xmit+0x8b/0x90 [ipw2200] > [67607.676067] [<f8741c5a>] libipw_xmit+0x55a/0x980 [libipw] > [67607.676067] [<c143d3e8>] dev_hard_start_xmit+0x218/0x4d0 > ... > > This bug was found by VittGam. > https://bugzilla.kernel.org/show_bug.cgi?id=43255 > > Signed-off-by: Stanislav Yakovlev <[email protected]> > Signed-off-by: John W. Linville <[email protected]> > Signed-off-by: Herton Ronaldo Krzesinski <[email protected]>
This is missing from 3.4; it may just need de-fuzzing to apply. Ben. > --- > drivers/net/wireless/ipw2x00/ipw2200.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c > b/drivers/net/wireless/ipw2x00/ipw2200.c > index 0036737..1f2edf2 100644 > --- a/drivers/net/wireless/ipw2x00/ipw2200.c > +++ b/drivers/net/wireless/ipw2x00/ipw2200.c > @@ -10470,7 +10470,7 @@ static void ipw_handle_promiscuous_tx(struct ipw_priv > *priv, > } else > len = src->len; > > - dst = alloc_skb(len + sizeof(*rt_hdr), GFP_ATOMIC); > + dst = alloc_skb(len + sizeof(*rt_hdr) + sizeof(u16)*2, > GFP_ATOMIC); > if (!dst) > continue; > -- Ben Hutchings Never attribute to conspiracy what can adequately be explained by stupidity.
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