zhichen@xxxxxxxxxxxxxx wrote: > Length of WMI scan message was not calculated correctly. The allocated > buffer was smaller than what we expected. So WMI message corrupted > skb_info, which is at the end of skb->data. This fix takes TLV header > into account even if the element is zero-length. > > Crash log: > [49.629986] Unhandled kernel unaligned access[#1]: > [49.634932] CPU: 0 PID: 1176 Comm: logd Not tainted 4.4.60 #180 > [49.641040] task: 83051460 ti: 8329c000 task.ti: 8329c000 > [49.646608] $ 0 : 00000000 00000001 80984a80 00000000 > [49.652038] $ 4 : 45259e89 8046d484 8046df30 8024ba70 > [49.657468] $ 8 : 00000000 804cc4c0 00000001 20306320 > [49.662898] $12 : 33322037 000110f2 00000000 31203930 > [49.668327] $16 : 82792b40 80984a80 00000001 804207fc > [49.673757] $20 : 00000000 0000012c 00000040 80470000 > [49.679186] $24 : 00000000 8024af7c > [49.684617] $28 : 8329c000 8329db88 00000001 802c58d0 > [49.690046] Hi : 00000000 > [49.693022] Lo : 453c0000 > [49.696013] epc : 800efae4 put_page+0x0/0x58 > [49.700615] ra : 802c58d0 skb_release_data+0x148/0x1d4 > [49.706184] Status: 1000fc03 KERNEL EXL IE > [49.710531] Cause : 00800010 (ExcCode 04) > [49.714669] BadVA : 45259e89 > [49.717644] PrId : 00019374 (MIPS 24Kc) > > Signed-off-by: Zhi Chen <zhichen@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. c82919888064 ath10k: fix scan crash due to incorrect length calculation -- https://patchwork.kernel.org/patch/10332445/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
