Leon Romanovsky 340b940ea0 RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait ... If cm_create_timewait_info() fails, the timewait_info pointer will contain an error value and will be used in cm_remove_remote() later. general protection fault, probably for non-canonical address 0xdffffc0000000024: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0×0000000000000120-0×0000000000000127] CPU: 2 PID: 12446 Comm: syz-executor.3 Not tainted 5.10.0-rc5-5d4c0742a60e #27 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:cm_remove_remote.isra.0+0x24/0×170 drivers/infiniband/core/cm.c:978 Code: 84 00 00 00 00 00 41 54 55 53 48 89 fb 48 8d ab 2d 01 00 00 e8 7d bf 4b fe 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 fc 00 00 00 RSP: 0018:ffff888013127918 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: ffffc9000a18b000 RDX: 0000000000000024 RSI: ffffffff82edc573 RDI: fffffffffffffff4 RBP: 0000000000000121 R08: 0000000000000001 R09: ffffed1002624f1d R10: 0000000000000003 R11: ffffed1002624f1c R12: ffff888107760c70 R13: ffff888107760c40 R14: fffffffffffffff4 R15: ffff888107760c9c FS: 00007fe1ffcc1700(0000) GS:ffff88811a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ff21000 CR3: 000000010f504001 CR4: 0000000000370ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cm_destroy_id+0x189/0×15b0 drivers/infiniband/core/cm.c:1155 cma_connect_ib drivers/infiniband/core/cma.c:4029 [inline] rdma_connect_locked+0x1100/0×17c0 drivers/infiniband/core/cma.c:4107 rdma_connect+0x2a/0×40 drivers/infiniband/core/cma.c:4140 ucma_connect+0x277/0×340 drivers/infiniband/core/ucma.c:1069 ucma_write+0x236/0×2f0 drivers/infiniband/core/ucma.c:1724 vfs_write+0x220/0×830 fs/read_write.c:603 ksys_write+0x1df/0×240 fs/read_write.c:658 do_syscall_64+0x33/0×40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: a977049dac ("[PATCH] IB: Add the kernel CM implementation") Link: https://lore.kernel.org/r/20201204064205.145795-1-leon@kernel.org Reviewed-by: Maor Gottlieb <maorg@nvidia.com> Reported-by: Amit Matityahu <mitm@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>		2020-12-09 15:51:35 -04:00
..
addr.c	RDMA/addr: Fix race with netevent_callback()/rdma_addr_cancel()	2020-09-30 15:29:05 -03:00
agent.c
agent.h
cache.c	RDMA/core: Fix empty gid table for non IB/RoCE devices	2020-12-07 16:32:04 -04:00
cgroup.c
cm_msgs.h
cm_trace.c	RDMA/cm: Replace pr_debug() call sites with tracepoints	2020-08-24 19:41:41 -03:00
cm_trace.h	RDMA/cm: Add tracepoints to track MAD send operations	2020-08-24 19:41:41 -03:00
cm.c	RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait	2020-12-09 15:51:35 -04:00
cma_configfs.c	RDMA/core: Modify enum ib_gid_type and enum rdma_network_type	2020-10-01 21:20:11 -03:00
cma_priv.h
cma_trace.c
cma_trace.h	RDMA/core: Move the rdma_show_ib_cm_event() macro	2020-08-24 16:01:47 -03:00
cma.c	RDMA: Add rdma_connect_locked()	2020-10-28 09:14:49 -03:00
core_priv.h	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
counters.c	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
cq.c	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
device.c	RDMA: Explicitly pass in the dma_device to ib_register_device	2020-10-16 13:53:46 -03:00
ib_core_uverbs.c
iwcm.c
iwcm.h
iwpm_msg.c
iwpm_util.c
iwpm_util.h
lag.c
mad_priv.h
mad_rmpp.c
mad_rmpp.h
mad.c	RDMA 5.9 merge window pull request	2020-08-06 16:43:36 -07:00
Makefile	RDMA/cm: Replace pr_debug() call sites with tracepoints	2020-08-24 19:41:41 -03:00
mr_pool.c
multicast.c
netlink.c
nldev.c	RDMA/netlink: Remove CAP_NET_RAW check when dump a raw QP	2020-07-29 15:51:19 -03:00
opa_smi.h
packer.c
rdma_core.c	RDMA/core: Remove ucontext->closing	2020-09-30 15:27:19 -03:00
rdma_core.h
restrack.c	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
restrack.h	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
roce_gid_mgmt.c	net: core: introduce struct netdev_nested_priv for nested interface infrastructure	2020-09-28 15:00:15 -07:00
rw.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
sa_query.c
sa.h
security.c
smi.c
smi.h
sysfs.c	RDMA/core: Change rdma_get_gid_attr returned error code	2020-10-01 21:20:11 -03:00
trace.c
ucma.c	RDMA/ucma: Fix use after free in destroy id flow	2020-10-16 14:07:08 -03:00
ud_header.c
umem_odp.c	IB/core: Enable ODP sync without faulting	2020-10-01 16:44:05 -03:00
umem.c	Merge branch 'dynamic_sg' into rdma.git for-next	2020-10-16 12:40:58 -03:00
user_mad.c
uverbs_cmd.c	RDMA/core: Align write and ioctl checks of QP types	2020-09-29 13:11:06 -03:00
uverbs_ioctl.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
uverbs_main.c	RDMA 5.10 pull request	2020-10-17 11:18:18 -07:00
uverbs_marshall.c
uverbs_std_types_async_fd.c
uverbs_std_types_counters.c	RDMA: Make counters destroy symmetrical	2020-09-09 14:14:29 -03:00
uverbs_std_types_cq.c	RDMA/restrack: Improve readability in task name management	2020-09-22 19:47:35 -03:00
uverbs_std_types_device.c	RDMA/uverbs: Fix false error in query gid IOCTL	2020-10-26 19:29:26 -03:00
uverbs_std_types_dm.c
uverbs_std_types_flow_action.c
uverbs_std_types_mr.c	RDMA/mlx5: Add missing srcu_read_lock in ODP implicit flow	2020-07-24 16:44:06 -03:00
uverbs_std_types_qp.c
uverbs_std_types_srq.c
uverbs_std_types_wq.c	RDMA: Restore ability to return error for destroy WQ	2020-09-09 14:14:29 -03:00
uverbs_std_types.c	RDMA: Convert RWQ table logic to ib_core allocation scheme	2020-09-17 14:04:33 -03:00
uverbs_uapi.c
uverbs.h
verbs.c	RDMA/core: Modify enum ib_gid_type and enum rdma_network_type	2020-10-01 21:20:11 -03:00