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Jia-Ju Bai bb566ce3a6 net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx ... [ Upstream commit f146e872eb ] The kernel may sleep under a rcu read lock in cfpkt_create_pfx, and the function call path is: cfcnfg_linkup_rsp (acquire the lock by rcu_read_lock) cfctrl_linkdown_req cfpkt_create cfpkt_create_pfx alloc_skb(GFP_KERNEL) --> may sleep cfserl_receive (acquire the lock by rcu_read_lock) cfpkt_split cfpkt_create_pfx alloc_skb(GFP_KERNEL) --> may sleep There is "in_interrupt" in cfpkt_create_pfx to decide use "GFP_KERNEL" or "GFP_ATOMIC". In this situation, "GFP_KERNEL" is used because the function is called under a rcu read lock, instead in interrupt. To fix it, only "GFP_ATOMIC" is used in cfpkt_create_pfx. Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		6 years ago
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Kconfig	Kconfig: replace "--- help ---" with "---help---"	11 years ago
Makefile	caif: Add support for CAIF over CDC NCM USB interface	11 years ago
caif_dev.c	net: caif: convert to using IFF_NO_QUEUE	8 years ago
caif_socket.c	net: caif: remove ineffective check	6 years ago
caif_usb.c	caif_usb: use target structure member in memset	9 years ago
cfcnfg.c	caif: Remove my bouncing email address.	10 years ago
cfctrl.c	caif: remove unnecessary break after goto	9 years ago
cfdbgl.c	caif: Remove my bouncing email address.	10 years ago
cfdgml.c	caif: Remove my bouncing email address.	10 years ago
cffrml.c	caif: fix a signedness bug in cfpkt_iterate()	8 years ago
cfmuxl.c	caif: replace kmalloc/memset 0 by kzalloc	9 years ago
cfpkt_skbuff.c	net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx	6 years ago
cfrfml.c	net: caif: fix erroneous return value	7 years ago
cfserl.c	caif: Remove my bouncing email address.	10 years ago
cfsrvl.c	net: Include appropriate header file in caif/cfsrvl.c	9 years ago
cfutill.c	caif: Remove my bouncing email address.	10 years ago
cfveil.c	caif: Remove my bouncing email address.	10 years ago
cfvidl.c	caif: Remove my bouncing email address.	10 years ago
chnl_net.c	caif: Remove unneeded header file	7 years ago