From: Chris Bainbridge <chris.bainbridge@gmail.com>
To: rjw@rjwysocki.net, lenb@kernel.org
Cc: linux-acpi@vger.kernel.org
Subject: [BUG] rmmod sbshc: unable to handle kernel NULL pointer dereference in acpi_ec_put_query_handler
Date: Fri, 17 Apr 2015 12:11:24 +0100 [thread overview]
Message-ID: <20150417111124.GA3554@localhost> (raw)
Booting 4.0.0 or latest git (4fc8adc) and doing:
rmmod sbs
rmmod sbshc
Results in:
[ 17.478679] BUG: unable to handle kernel NULL pointer dereference at 000000000000002c
[ 17.480360] IP: [<ffffffff814d69c8>] acpi_ec_put_query_handler+0x7/0x1a
[ 17.482073] PGD 0
[ 17.483738] Oops: 0002 [#1] SMP
[ 17.485388] Modules linked in: sbshc(-) [last unloaded: sbs]
[ 17.485393] CPU: 2 PID: 3973 Comm: rmmod Tainted: G W 4.0.0+ #2
[ 17.485394] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B07.1501071215 01/07/2015
[ 17.485395] task: ffff88026538ad50 ti: ffff8802511e0000 task.ti: ffff8802511e0000
[ 17.485397] RIP: 0010:[<ffffffff814d69c8>]
[ 17.485399] [<ffffffff814d69c8>] acpi_ec_put_query_handler+0x7/0x1a
[ 17.485400] RSP: 0018:ffff8802511e3dc0 EFLAGS: 00010213
[ 17.485401] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffea0009443400
[ 17.485402] RDX: 0000000000000007 RSI: 0000000000018e40 RDI: 000000000000002c
[ 17.485403] RBP: ffff8802511e3df8 R08: 0000000000000001 R09: 000000018040003f
[ 17.485404] R10: ffffffff814d67ab R11: ffffea00021f03c0 R12: ffff8802511e3dc8
[ 17.485405] R13: ffff88026533d210 R14: ffff880265134638 R15: 0000557e8f5151e0
[ 17.485406] FS: 00007fb52352a700(0000) GS:ffff88026f280000(0000) knlGS:0000000000000000
[ 17.485407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 17.485408] CR2: 000000000000002c CR3: 0000000251196000 CR4: 00000000001406e0
[ 17.485409] Stack:
[ 17.485409] ffffffff814d6ae5
[ 17.485410] ffff8802654c1680
[ 17.485410] ffff880264549200
[ 17.485411] ffff88026533d000
[ 17.485412] ffff880264a0d180
[ 17.485412] ffff88026533d2b8
[ 17.485413] 0000000000000000
[ 17.485413] ffff8802511e3e18
[ 17.485414] ffffffffa00000f4
[ 17.485415] ffff88026533d258
[ 17.485415] ffffffffa00007c0
[ 17.485415] ffff8802511e3e38
[ 17.485416] Call Trace:
[ 17.485419] [<ffffffff814d6ae5>] ? acpi_ec_remove_query_handler+0x87/0x97
[ 17.485423] [<ffffffffa00000f4>] acpi_smbus_hc_remove+0x2a/0x44 [sbshc]
[ 17.485425] [<ffffffff814d27db>] acpi_device_remove+0x7b/0x9a
[ 17.485428] [<ffffffff81649b6e>] __device_release_driver+0x7e/0x110
[ 17.485430] [<ffffffff8164a650>] driver_detach+0xb0/0xc0
[ 17.485432] [<ffffffff81649804>] bus_remove_driver+0x54/0xe0
[ 17.485434] [<ffffffff8164adfb>] driver_unregister+0x2b/0x60
[ 17.485436] [<ffffffff814d2f63>] acpi_bus_unregister_driver+0x10/0x12
[ 17.485438] [<ffffffffa000059e>] acpi_smb_hc_driver_exit+0x10/0x12 [sbshc]
[ 17.485442] [<ffffffff8112f008>] SyS_delete_module+0x1b8/0x210
[ 17.485444] [<ffffffff81a8da57>] system_call_fastpath+0x12/0x6a
[ 17.485445] Code:
[ 17.485446] 00
[ 17.485447] 48
[ 17.485447] 89
[ 17.485447] 83
[ 17.485448] 98
[ 17.485448] 00
[ 17.485448] 00
[ 17.485449] 00
[ 17.485449] 48
[ 17.485450] 8d
[ 17.485450] 83
[ 17.485450] a0
[ 17.485451] 00
[ 17.485451] 00
[ 17.485451] 00
[ 17.485452] 48
[ 17.485452] 89
[ 17.485453] 83
[ 17.485453] a0
[ 17.485453] 00
[ 17.485454] 00
[ 17.485454] 00
[ 17.485454] 48
[ 17.485455] 89
[ 17.485455] 83
[ 17.485456] a8
[ 17.485456] 00
[ 17.485456] 00
[ 17.485457] 00
[ 17.485457] 48
[ 17.485457] 89
[ 17.485458] d8
[ 17.485458] 5a
[ 17.485459] 5b
[ 17.485459] 5d
[ 17.485459] c3
[ 17.485460] 48
[ 17.485460] 89
[ 17.485460] f8
[ 17.485461] 48
[ 17.485461] 8d
[ 17.485462] 7f
[ 17.485462] 2c
[ 17.485463] <f0>
[ 17.485463] 83
[ 17.485463] 68
[ 17.485464] 2c
[ 17.485464] 01
[ 17.485464] 74
[ 17.485465] 01
[ 17.485465] c3
[ 17.485466] 55
[ 17.485466] 48
[ 17.485466] 89
[ 17.485467] e5
[ 17.485467] e8
[ 17.485468] c5
[ 17.485468] fd
[ 17.485468] ff
[ 17.485469] ff
[ 17.485469] 5d
[ 17.485469] c3
[ 17.485470] 48
[ 17.485470] 85
[ 17.485471] RIP
[ 17.485473] [<ffffffff814d69c8>] acpi_ec_put_query_handler+0x7/0x1a
[ 17.485473] RSP <ffff8802511e3dc0>
[ 17.485474] CR2: 000000000000002c
[ 17.485484] ---[ end trace f803e2fbf43098cf ]---
next reply other threads:[~2015-04-17 11:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-17 11:11 Chris Bainbridge [this message]
2015-04-21 23:25 ` [PATCH] sbshc: fix NULL pointer dereference on rmmod Chris Bainbridge
2015-04-22 2:16 ` Rafael J. Wysocki
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