* Linus Git (3.11.0+) - security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage!
@ 2013-09-12 3:39 Miles Lane
2013-09-12 17:34 ` Paul E. McKenney
0 siblings, 1 reply; 3+ messages in thread
From: Miles Lane @ 2013-09-12 3:39 UTC (permalink / raw
To: LKML
[ 29.804534] [ INFO: suspicious RCU usage. ]
[ 29.804539] 3.11.0+ #5 Not tainted
[ 29.804541] -------------------------------
[ 29.804545] security/apparmor/include/policy.h:363 suspicious
rcu_dereference_check() usage!
[ 29.804548]
[ 29.804548] other info that might help us debug this:
[ 29.804548]
[ 29.804553]
[ 29.804553] rcu_scheduler_active = 1, debug_locks = 1
[ 29.804558] 2 locks held by apparmor_parser/1268:
[ 29.804560] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
file_start_write+0x27/0x29
[ 29.804576] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
aa_replace_profiles+0x166/0x57c
[ 29.804589]
[ 29.804589] stack backtrace:
[ 29.804595] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
[ 29.804599] Hardware name: ASUSTeK Computer Inc. UL50VT
/UL50VT , BIOS 217 03/01/2010
[ 29.804602] 0000000000000000 ffff8800b95a1d90 ffffffff8144eb9b
ffff8800b94db540
[ 29.804611] ffff8800b95a1dc0 ffffffff81087439 ffff880138cc3a18
ffff880138cc3a18
[ 29.804619] ffff8800b9464a90 ffff880138cc3a38 ffff8800b95a1df0
ffffffff811f5084
[ 29.804628] Call Trace:
[ 29.804636] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
[ 29.804642] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
[ 29.804649] [<ffffffff811f5084>] __aa_update_replacedby+0x53/0x7f
[ 29.804655] [<ffffffff811f5408>] __replace_profile+0x11f/0x1ed
[ 29.804661] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
[ 29.804668] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
[ 29.804674] [<ffffffff81120fa3>] vfs_write+0xad/0x113
[ 29.804680] [<ffffffff81121609>] SyS_write+0x44/0x7a
[ 29.804687] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
[ 29.804691]
[ 29.804694] ===============================
[ 29.804697] [ INFO: suspicious RCU usage. ]
[ 29.804700] 3.11.0+ #5 Not tainted
[ 29.804703] -------------------------------
[ 29.804706] security/apparmor/policy.c:566 suspicious
rcu_dereference_check() usage!
[ 29.804709]
[ 29.804709] other info that might help us debug this:
[ 29.804709]
[ 29.804714]
[ 29.804714] rcu_scheduler_active = 1, debug_locks = 1
[ 29.804718] 2 locks held by apparmor_parser/1268:
[ 29.804721] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
file_start_write+0x27/0x29
[ 29.804733] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
aa_replace_profiles+0x166/0x57c
[ 29.804744]
[ 29.804744] stack backtrace:
[ 29.804750] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
[ 29.804753] Hardware name: ASUSTeK Computer Inc. UL50VT
/UL50VT , BIOS 217 03/01/2010
[ 29.804756] 0000000000000000 ffff8800b95a1d80 ffffffff8144eb9b
ffff8800b94db540
[ 29.804764] ffff8800b95a1db0 ffffffff81087439 ffff8800b95b02b0
0000000000000000
[ 29.804772] ffff8800b9efba08 ffff880138cc3a38 ffff8800b95a1dd0
ffffffff811f4f94
[ 29.804779] Call Trace:
[ 29.804786] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
[ 29.804791] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
[ 29.804798] [<ffffffff811f4f94>] aa_free_replacedby_kref+0x4d/0x62
[ 29.804804] [<ffffffff811f4f47>] ? aa_put_namespace+0x17/0x17
[ 29.804810] [<ffffffff811f4f0b>] kref_put+0x36/0x40
[ 29.804816] [<ffffffff811f5423>] __replace_profile+0x13a/0x1ed
[ 29.804822] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
[ 29.804829] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
[ 29.804835] [<ffffffff81120fa3>] vfs_write+0xad/0x113
[ 29.804840] [<ffffffff81121609>] SyS_write+0x44/0x7a
[ 29.804847] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Linus Git (3.11.0+) - security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage!
2013-09-12 3:39 Linus Git (3.11.0+) - security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage! Miles Lane
@ 2013-09-12 17:34 ` Paul E. McKenney
2013-09-13 1:40 ` John Johansen
0 siblings, 1 reply; 3+ messages in thread
From: Paul E. McKenney @ 2013-09-12 17:34 UTC (permalink / raw
To: Miles Lane; +Cc: LKML, john.johansen, apparmor
On Wed, Sep 11, 2013 at 11:39:31PM -0400, Miles Lane wrote:
> [ 29.804534] [ INFO: suspicious RCU usage. ]
> [ 29.804539] 3.11.0+ #5 Not tainted
> [ 29.804541] -------------------------------
> [ 29.804545] security/apparmor/include/policy.h:363 suspicious
> rcu_dereference_check() usage!
Adding the AppArmor maintainer and list on CC, looks like one for them.
Thanx, Paul
> [ 29.804548]
> [ 29.804548] other info that might help us debug this:
> [ 29.804548]
> [ 29.804553]
> [ 29.804553] rcu_scheduler_active = 1, debug_locks = 1
> [ 29.804558] 2 locks held by apparmor_parser/1268:
> [ 29.804560] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
> file_start_write+0x27/0x29
> [ 29.804576] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
> aa_replace_profiles+0x166/0x57c
> [ 29.804589]
> [ 29.804589] stack backtrace:
> [ 29.804595] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
> [ 29.804599] Hardware name: ASUSTeK Computer Inc. UL50VT
> /UL50VT , BIOS 217 03/01/2010
> [ 29.804602] 0000000000000000 ffff8800b95a1d90 ffffffff8144eb9b
> ffff8800b94db540
> [ 29.804611] ffff8800b95a1dc0 ffffffff81087439 ffff880138cc3a18
> ffff880138cc3a18
> [ 29.804619] ffff8800b9464a90 ffff880138cc3a38 ffff8800b95a1df0
> ffffffff811f5084
> [ 29.804628] Call Trace:
> [ 29.804636] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
> [ 29.804642] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
> [ 29.804649] [<ffffffff811f5084>] __aa_update_replacedby+0x53/0x7f
> [ 29.804655] [<ffffffff811f5408>] __replace_profile+0x11f/0x1ed
> [ 29.804661] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
> [ 29.804668] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
> [ 29.804674] [<ffffffff81120fa3>] vfs_write+0xad/0x113
> [ 29.804680] [<ffffffff81121609>] SyS_write+0x44/0x7a
> [ 29.804687] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
> [ 29.804691]
> [ 29.804694] ===============================
> [ 29.804697] [ INFO: suspicious RCU usage. ]
> [ 29.804700] 3.11.0+ #5 Not tainted
> [ 29.804703] -------------------------------
> [ 29.804706] security/apparmor/policy.c:566 suspicious
> rcu_dereference_check() usage!
> [ 29.804709]
> [ 29.804709] other info that might help us debug this:
> [ 29.804709]
> [ 29.804714]
> [ 29.804714] rcu_scheduler_active = 1, debug_locks = 1
> [ 29.804718] 2 locks held by apparmor_parser/1268:
> [ 29.804721] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
> file_start_write+0x27/0x29
> [ 29.804733] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
> aa_replace_profiles+0x166/0x57c
> [ 29.804744]
> [ 29.804744] stack backtrace:
> [ 29.804750] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
> [ 29.804753] Hardware name: ASUSTeK Computer Inc. UL50VT
> /UL50VT , BIOS 217 03/01/2010
> [ 29.804756] 0000000000000000 ffff8800b95a1d80 ffffffff8144eb9b
> ffff8800b94db540
> [ 29.804764] ffff8800b95a1db0 ffffffff81087439 ffff8800b95b02b0
> 0000000000000000
> [ 29.804772] ffff8800b9efba08 ffff880138cc3a38 ffff8800b95a1dd0
> ffffffff811f4f94
> [ 29.804779] Call Trace:
> [ 29.804786] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
> [ 29.804791] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
> [ 29.804798] [<ffffffff811f4f94>] aa_free_replacedby_kref+0x4d/0x62
> [ 29.804804] [<ffffffff811f4f47>] ? aa_put_namespace+0x17/0x17
> [ 29.804810] [<ffffffff811f4f0b>] kref_put+0x36/0x40
> [ 29.804816] [<ffffffff811f5423>] __replace_profile+0x13a/0x1ed
> [ 29.804822] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
> [ 29.804829] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
> [ 29.804835] [<ffffffff81120fa3>] vfs_write+0xad/0x113
> [ 29.804840] [<ffffffff81121609>] SyS_write+0x44/0x7a
> [ 29.804847] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Linus Git (3.11.0+) - security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage!
2013-09-12 17:34 ` Paul E. McKenney
@ 2013-09-13 1:40 ` John Johansen
0 siblings, 0 replies; 3+ messages in thread
From: John Johansen @ 2013-09-13 1:40 UTC (permalink / raw
To: paulmck; +Cc: Miles Lane, LKML, apparmor
On 09/12/2013 10:34 AM, Paul E. McKenney wrote:
> On Wed, Sep 11, 2013 at 11:39:31PM -0400, Miles Lane wrote:
>> [ 29.804534] [ INFO: suspicious RCU usage. ]
>> [ 29.804539] 3.11.0+ #5 Not tainted
>> [ 29.804541] -------------------------------
>> [ 29.804545] security/apparmor/include/policy.h:363 suspicious
>> rcu_dereference_check() usage!
>
> Adding the AppArmor maintainer and list on CC, looks like one for them.
>
yep, I'm looking into it thanks for the heads up
> Thanx, Paul
>
>> [ 29.804548]
>> [ 29.804548] other info that might help us debug this:
>> [ 29.804548]
>> [ 29.804553]
>> [ 29.804553] rcu_scheduler_active = 1, debug_locks = 1
>> [ 29.804558] 2 locks held by apparmor_parser/1268:
>> [ 29.804560] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
>> file_start_write+0x27/0x29
>> [ 29.804576] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
>> aa_replace_profiles+0x166/0x57c
>> [ 29.804589]
>> [ 29.804589] stack backtrace:
>> [ 29.804595] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
>> [ 29.804599] Hardware name: ASUSTeK Computer Inc. UL50VT
>> /UL50VT , BIOS 217 03/01/2010
>> [ 29.804602] 0000000000000000 ffff8800b95a1d90 ffffffff8144eb9b
>> ffff8800b94db540
>> [ 29.804611] ffff8800b95a1dc0 ffffffff81087439 ffff880138cc3a18
>> ffff880138cc3a18
>> [ 29.804619] ffff8800b9464a90 ffff880138cc3a38 ffff8800b95a1df0
>> ffffffff811f5084
>> [ 29.804628] Call Trace:
>> [ 29.804636] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
>> [ 29.804642] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
>> [ 29.804649] [<ffffffff811f5084>] __aa_update_replacedby+0x53/0x7f
>> [ 29.804655] [<ffffffff811f5408>] __replace_profile+0x11f/0x1ed
>> [ 29.804661] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
>> [ 29.804668] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
>> [ 29.804674] [<ffffffff81120fa3>] vfs_write+0xad/0x113
>> [ 29.804680] [<ffffffff81121609>] SyS_write+0x44/0x7a
>> [ 29.804687] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
>> [ 29.804691]
>> [ 29.804694] ===============================
>> [ 29.804697] [ INFO: suspicious RCU usage. ]
>> [ 29.804700] 3.11.0+ #5 Not tainted
>> [ 29.804703] -------------------------------
>> [ 29.804706] security/apparmor/policy.c:566 suspicious
>> rcu_dereference_check() usage!
>> [ 29.804709]
>> [ 29.804709] other info that might help us debug this:
>> [ 29.804709]
>> [ 29.804714]
>> [ 29.804714] rcu_scheduler_active = 1, debug_locks = 1
>> [ 29.804718] 2 locks held by apparmor_parser/1268:
>> [ 29.804721] #0: (sb_writers#9){.+.+.+}, at: [<ffffffff81120a4c>]
>> file_start_write+0x27/0x29
>> [ 29.804733] #1: (&ns->lock){+.+.+.}, at: [<ffffffff811f5d88>]
>> aa_replace_profiles+0x166/0x57c
>> [ 29.804744]
>> [ 29.804744] stack backtrace:
>> [ 29.804750] CPU: 0 PID: 1268 Comm: apparmor_parser Not tainted 3.11.0+ #5
>> [ 29.804753] Hardware name: ASUSTeK Computer Inc. UL50VT
>> /UL50VT , BIOS 217 03/01/2010
>> [ 29.804756] 0000000000000000 ffff8800b95a1d80 ffffffff8144eb9b
>> ffff8800b94db540
>> [ 29.804764] ffff8800b95a1db0 ffffffff81087439 ffff8800b95b02b0
>> 0000000000000000
>> [ 29.804772] ffff8800b9efba08 ffff880138cc3a38 ffff8800b95a1dd0
>> ffffffff811f4f94
>> [ 29.804779] Call Trace:
>> [ 29.804786] [<ffffffff8144eb9b>] dump_stack+0x4e/0x82
>> [ 29.804791] [<ffffffff81087439>] lockdep_rcu_suspicious+0xfc/0x105
>> [ 29.804798] [<ffffffff811f4f94>] aa_free_replacedby_kref+0x4d/0x62
>> [ 29.804804] [<ffffffff811f4f47>] ? aa_put_namespace+0x17/0x17
>> [ 29.804810] [<ffffffff811f4f0b>] kref_put+0x36/0x40
>> [ 29.804816] [<ffffffff811f5423>] __replace_profile+0x13a/0x1ed
>> [ 29.804822] [<ffffffff811f6032>] aa_replace_profiles+0x410/0x57c
>> [ 29.804829] [<ffffffff811f16d4>] profile_replace+0x35/0x4c
>> [ 29.804835] [<ffffffff81120fa3>] vfs_write+0xad/0x113
>> [ 29.804840] [<ffffffff81121609>] SyS_write+0x44/0x7a
>> [ 29.804847] [<ffffffff8145bfd2>] system_call_fastpath+0x16/0x1b
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at http://www.tux.org/lkml/
>>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2013-09-13 1:40 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-12 3:39 Linus Git (3.11.0+) - security/apparmor/include/policy.h:363 suspicious rcu_dereference_check() usage! Miles Lane
2013-09-12 17:34 ` Paul E. McKenney
2013-09-13 1:40 ` John Johansen
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).