Mohammed Gamal a5c44f3446 Drivers: vmbus: Check for channel allocation before looking up relids ... [ Upstream commit 1eb65c8687 ] relid2channel() assumes vmbus channel array to be allocated when called. However, in cases such as kdump/kexec, not all relids will be reset by the host. When the second kernel boots and if the guest receives a vmbus interrupt during vmbus driver initialization before vmbus_connect() is called, before it finishes, or if it fails, the vmbus interrupt service routine is called which in turn calls relid2channel() and can cause a null pointer dereference. Print a warning and error out in relid2channel() for a channel id that's invalid in the second kernel. Fixes: 8b6a877c06 ("Drivers: hv: vmbus: Replace the per-CPU channel lists with a global array of channels") Signed-off-by: Mohammed Gamal <mgamal@redhat.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/20230217204411.212709-1-mgamal@redhat.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-13 17:02:35 +02:00
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Kconfig	hv: utils: add PTP_1588_CLOCK to Kconfig to fix build	2021-11-28 21:22:35 +00:00
Makefile	…
channel.c	Drivers: hv: vmbus: Introduce {lock,unlock}_requestor()	2022-04-25 15:51:13 +00:00
channel_mgmt.c	Drivers: hv: vmbus: fix double free in the error path of vmbus_add_channel_work()	2022-11-21 10:57:41 +00:00
connection.c	Drivers: vmbus: Check for channel allocation before looking up relids	2023-04-13 17:02:35 +02:00
hv.c	x86/hyperv: Add ghcb hvcall support for SNP VM	2021-10-28 11:22:49 +00:00
hv_balloon.c	HV: hv_balloon: fix memory leak with using debugfs_lookup()	2023-02-03 07:45:18 +01:00
hv_common.c	hyperv-fixes for 5.18-rc2	2022-04-07 06:35:34 -10:00
hv_debugfs.c	…
hv_fcopy.c	Drivers: hv: remove duplicate word in a comment	2022-09-05 16:28:40 +00:00
hv_kvp.c	Drivers: hv: Fix syntax errors in comments	2022-06-08 12:26:28 +00:00
hv_snapshot.c	hv_utils: Add comment about max VMbus packet size in VSS driver	2022-02-18 13:08:18 +00:00
hv_trace.c	…
hv_trace.h	…
hv_trace_balloon.h	…
hv_util.c	drivers: convert unsupported .adjfreq to .adjfine	2022-10-31 11:14:16 +00:00
hv_utils_transport.c	Drivers: hv: utils: Make use of the helper macro LIST_HEAD()	2022-02-09 14:33:21 +00:00
hv_utils_transport.h	…
hyperv_vmbus.h	Drivers: hv: vm_bus: Handle vmbus rescind calls after vmbus is suspended	2022-07-11 18:53:42 +00:00
ring_buffer.c	video: hyperv_fb: Avoid taking busy spinlock on panic path	2022-11-28 16:48:20 +00:00
vmbus_drv.c	ACPI updates for 6.2-rc1	2022-12-12 13:38:17 -08:00