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e3e82fcb79
When creating ceq_0 during probing irdma, cqp.sc_cqp will be sent as a
cqp_request to cqp->sc_cqp.sq_ring. If the request is pending when
removing the irdma driver or unplugging its aux device, cqp.sc_cqp will be
dereferenced as wrong struct in irdma_free_pending_cqp_request().
PID: 3669 TASK: ffff88aef892c000 CPU: 28 COMMAND: "kworker/28:0"
#0 [fffffe0000549e38] crash_nmi_callback at ffffffff810e3a34
#1 [fffffe0000549e40] nmi_handle at ffffffff810788b2
#2 [fffffe0000549ea0] default_do_nmi at ffffffff8107938f
#3 [fffffe0000549eb8] do_nmi at ffffffff81079582
#4 [fffffe0000549ef0] end_repeat_nmi at ffffffff82e016b4
[exception RIP: native_queued_spin_lock_slowpath+1291]
RIP: ffffffff8127e72b RSP: ffff88aa841ef778 RFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88b01f849700 RCX: ffffffff8127e47e
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff83857ec0
RBP: ffff88afe3e4efc8 R8: ffffed15fc7c9dfa R9: ffffed15fc7c9dfa
R10: 0000000000000001 R11: ffffed15fc7c9df9 R12: 0000000000740000
R13: ffff88b01f849708 R14: 0000000000000003 R15: ffffed1603f092e1
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
-- <NMI exception stack> --
#5 [ffff88aa841ef778] native_queued_spin_lock_slowpath at ffffffff8127e72b
#6 [ffff88aa841ef7b0] _raw_spin_lock_irqsave at ffffffff82c22aa4
#7 [ffff88aa841ef7c8] __wake_up_common_lock at ffffffff81257363
#8 [ffff88aa841ef888] irdma_free_pending_cqp_request at ffffffffa0ba12cc [irdma]
#9 [ffff88aa841ef958] irdma_cleanup_pending_cqp_op at ffffffffa0ba1469 [irdma]
#10 [ffff88aa841ef9c0] irdma_ctrl_deinit_hw at ffffffffa0b2989f [irdma]
#11 [ffff88aa841efa28] irdma_remove at ffffffffa0b252df [irdma]
#12 [ffff88aa841efae8] auxiliary_bus_remove at ffffffff8219afdb
#13 [ffff88aa841efb00] device_release_driver_internal at ffffffff821882e6
#14 [ffff88aa841efb38] bus_remove_device at ffffffff82184278
#15 [ffff88aa841efb88] device_del at ffffffff82179d23
#16 [ffff88aa841efc48] ice_unplug_aux_dev at ffffffffa0eb1c14 [ice]
#17 [ffff88aa841efc68] ice_service_task at ffffffffa0d88201 [ice]
#18 [ffff88aa841efde8] process_one_work at ffffffff811c589a
#19 [ffff88aa841efe60] worker_thread at ffffffff811c71ff
#20 [ffff88aa841eff10] kthread at ffffffff811d87a0
#21 [ffff88aa841eff50] ret_from_fork at ffffffff82e0022f
Fixes:
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.