Xin Long fb6df5a623 sctp: kfree_rcu asoc ... In sctp_hash_transport/sctp_epaddr_lookup_transport, it dereferences a transport's asoc under rcu_read_lock while asoc is freed not after a grace period, which leads to a use-after-free panic. This patch fixes it by calling kfree_rcu to make asoc be freed after a grace period. Note that only the asoc's memory is delayed to free in the patch, it won't cause sk to linger longer. Thanks Neil and Marcelo to make this clear. Fixes: 7fda702f93 ("sctp: use new rhlist interface on sctp transport rhashtable") Fixes: cd2b708750 ("sctp: check duplicate node before inserting a new transport") Reported-by: syzbot+0b05d8aa7cb185107483@syzkaller.appspotmail.com Reported-by: syzbot+aad231d51b1923158444@syzkaller.appspotmail.com Suggested-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-12-03 15:54:41 -08:00
..
acpi	pci-v4.20-changes	2018-10-25 06:50:48 -07:00
asm-generic	s390 updates for 4.20-rc2	2018-11-09 06:30:44 -06:00
clocksource
crypto	KEYS: asym_tpm: extract key size & public key [ver #2]	2018-10-26 09:30:46 +01:00
drm	drm, i915, amdgpu, bridge + core quirk	2018-11-02 10:58:20 -07:00
dt-bindings	This time it looks like a quieter release cycle in the clk tree. I guess that's	2018-10-31 11:08:30 -07:00
keys	KEYS: Move trusted.h to include/keys [ver #2]	2018-10-26 09:30:47 +01:00
kvm
linux	net: phy: sfp: correct location of SFP standards	2018-11-29 11:46:34 -08:00
math-emu
media	media: Rename vb2_m2m_request_queue -> v4l2_m2m_request_queue	2018-11-06 05:24:22 -05:00
memory
misc
net	sctp: kfree_rcu asoc	2018-12-03 15:54:41 -08:00
pcmcia
ras
rdma	First merge window pull request	2018-10-26 07:38:19 -07:00
scsi
soc	ARM: SoC driver updates for 4.17	2018-10-29 15:16:01 -07:00
sound
target
trace	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-11-19 09:24:04 -08:00
uapi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2018-11-24 12:58:47 -08:00
video
xen	CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM	2018-11-02 17:18:34 +01:00