From: Jakub Kicinski <kubakici@wp.pl>
To: "Johannes Berg" <johannes@sipsolutions.net>,
"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
"Maciej Żenczykowski" <zenczykowski@gmail.com>
Cc: netdev@vger.kernel.org
Subject: new kmemleak reports (was: Re: [PATCH 0/5] genetlink improvements)
Date: Tue, 1 Nov 2016 17:28:40 +0000 [thread overview]
Message-ID: <20161101172840.6d7d6278@jkicinski-Precision-T1700> (raw)
In-Reply-To: <1477312805-7110-1-git-send-email-johannes@sipsolutions.net>
Hi Johannes!
Could these be related to your set? Perhaps some annotation missing? :)
They are present on net-next but not on 4fe77d82ef80 ("skbedit: allow
the user to specify bitmask for mark").
unreferenced object 0xffff8807396a0348 (size 64):
comm "swapper/0", pid 1, jiffies 4294898458 (age 781.352s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d0ecf>] genl_init+0x11/0x43
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8807389cba28 (size 128):
comm "swapper/0", pid 1, jiffies 4294898463 (age 781.332s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d9524>] netlbl_mgmt_genl_init+0x10/0x12
[<ffffffff888d91e8>] netlbl_netlink_init+0x9/0x26
[<ffffffff888d9254>] netlbl_init+0x4f/0x85
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8807389c8f08 (size 128):
comm "swapper/0", pid 1, jiffies 4294898463 (age 781.332s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d992f>] netlbl_cipsov4_genl_init+0x10/0x12
[<ffffffff888d91f1>] netlbl_netlink_init+0x12/0x26
[<ffffffff888d9254>] netlbl_init+0x4f/0x85
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88072dd23b08 (size 32):
comm "swapper/0", pid 1, jiffies 4294898463 (age 781.348s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d9941>] netlbl_calipso_genl_init+0x10/0x12
[<ffffffff888d91fa>] netlbl_netlink_init+0x1b/0x26
[<ffffffff888d9254>] netlbl_init+0x4f/0x85
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8807396a0828 (size 64):
comm "swapper/0", pid 1, jiffies 4294898463 (age 781.348s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d9536>] netlbl_unlabel_genl_init+0x10/0x12
[<ffffffff888d9203>] netlbl_netlink_init+0x24/0x26
[<ffffffff888d9254>] netlbl_init+0x4f/0x85
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff880711df5ba8 (size 64):
comm "swapper/0", pid 1, jiffies 4294898511 (age 781.160s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff88877dc4>] quota_init+0x10/0x24
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88072dc3e2e8 (size 16):
comm "swapper/0", pid 1, jiffies 4294898513 (age 781.152s)
hex dump (first 16 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff88898d4f>] acpi_event_init+0x4a/0x5e
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff880713975598 (size 16):
comm "swapper/0", pid 1, jiffies 4294898569 (age 780.932s)
hex dump (first 16 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888bd402>] thermal_init+0x4f/0xdf
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff880715f52d08 (size 128):
comm "swapper/0", pid 1, jiffies 4294898660 (age 780.584s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d1e5e>] tcp_metrics_init+0x31/0x48
[<ffffffff888d1b89>] tcp_init+0x5af/0x5e1
[<ffffffff888d2747>] inet_init+0x216/0x34b
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8806fdc3eac8 (size 256):
comm "swapper/0", pid 1, jiffies 4294900250 (age 774.292s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff888d0897>] devlink_module_init+0x10/0x12
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8806fdff51e8 (size 64):
comm "swapper/0", pid 1, jiffies 4294900263 (age 774.240s)
hex dump (first 32 bytes):
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
backtrace:
[<ffffffff85decad8>] kmemleak_alloc+0x28/0x50
[<ffffffff84771246>] __kmalloc+0x206/0x5a0
[<ffffffff859e1261>] genl_register_family+0x711/0x11d0
[<ffffffff8885c8f7>] taskstats_init+0x11/0x37
[<ffffffff840022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffff887f9102>] kernel_init_freeable+0x597/0x636
[<ffffffff85de7793>] kernel_init+0x13/0x140
[<ffffffff85e0246a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
BTW this one is also relatively new (not present before 4.9-rc1 but
present on 4fe77d82ef80 already). Not sure which commit could have
added that:
unreferenced object 0xffff8807383bfd48 (size 96):
comm "swapper/0", pid 1, jiffies 4294894636 (age 278.320s)
hex dump (first 32 bytes):
a0 b4 b0 ba ff ff ff ff 00 00 00 00 01 00 00 00 ................
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffffb7de59e8>] kmemleak_alloc+0x28/0x50
[<ffffffffb676e2f6>] __kmalloc+0x206/0x5a0
[<ffffffffb69be2d3>] __register_sysctl_table+0xb3/0x1130
[<ffffffffb69bf36b>] register_sysctl+0x1b/0x20
[<ffffffffba840de1>] user_namespace_sysctl_init+0x17/0x4c
[<ffffffffb60022b7>] do_one_initcall+0xb7/0x2a0
[<ffffffffba7eb102>] kernel_init_freeable+0x597/0x636
[<ffffffffb7de0433>] kernel_init+0x13/0x140
[<ffffffffb7dfb36a>] ret_from_fork+0x2a/0x40
[<ffffffffffffffff>] 0xffffffffffffffff
next prev parent reply other threads:[~2016-11-01 17:28 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 12:40 [PATCH 0/5] genetlink improvements Johannes Berg
2016-10-24 12:40 ` [PATCH 1/5] genetlink: introduce and use genl_family_attrbuf() Johannes Berg
2016-10-24 12:40 ` [PATCH 2/5] genetlink: no longer support using static family IDs Johannes Berg
2016-10-24 12:40 ` [PATCH 3/5] genetlink: statically initialize families Johannes Berg
2016-10-24 12:55 ` Johannes Berg
2016-10-25 11:25 ` David Laight
2016-10-25 11:38 ` Johannes Berg
2016-10-24 12:40 ` [PATCH 4/5] genetlink: use idr to track families Johannes Berg
2016-10-24 12:40 ` [PATCH 5/5] genetlink: mark families as __ro_after_init Johannes Berg
2016-10-27 20:16 ` [PATCH 0/5] genetlink improvements David Miller
2016-11-01 17:28 ` Jakub Kicinski [this message]
2016-11-01 18:32 ` new kmemleak reports (was: Re: [PATCH 0/5] genetlink improvements) Cong Wang
2016-11-01 18:56 ` Jakub Kicinski
2016-11-02 20:30 ` Cong Wang
2016-11-02 23:47 ` [RFC] make kmemleak scan __ro_after_init section " Jakub Kicinski
2016-11-03 5:40 ` Cong Wang
2016-11-03 15:48 ` Johannes Berg
2016-11-03 20:49 ` Catalin Marinas
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