Messages in this thread | | | Date | Wed, 30 Aug 2017 18:28:16 -0700 | From | Jakub Kicinski <> | Subject | Apparmor memory leak reports |
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Hi!
I'm seeing a lot of kmemleak reports like this on 4.13.0-rc6:
unreferenced object 0xffff88045e62ab08 (size 1024): comm "apparmor_parser", pid 802, jiffies 4294913386 (age 4794.692s) hex dump (first 32 bytes): 0c 1b 30 6b 04 88 ff ff 0c 1b 30 6b 04 88 ff ff ..0k......0k.... 18 ab 62 5e 04 88 ff ff 18 ab 62 5e 04 88 ff ff ..b^......b^.... backtrace: [<ffffffff866a8b68>] kmemleak_alloc+0x28/0x50 [<ffffffff849a5376>] kmem_cache_alloc_trace+0x1e6/0x550 [<ffffffff851bc40d>] aa_alloc_profile+0x5d/0x220 [<ffffffff851c6d39>] unpack_profile+0x449/0x2530 [<ffffffff851ca8b7>] aa_unpack+0x447/0x151c [<ffffffff851bf994>] aa_replace_profiles+0x254/0x3f00 [<ffffffff8518f8e3>] policy_update+0x433/0x720 [<ffffffff8518fd0a>] profile_replace+0x13a/0x210 [<ffffffff84a5eb79>] __vfs_write+0xf9/0xdb0 [<ffffffff84a65c29>] vfs_write+0x189/0x640 [<ffffffff84a6b3a7>] SyS_write+0xf7/0x240 [<ffffffff866c8cee>] entry_SYSCALL_64_fastpath+0x1c/0xb1 [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff88046b301b08 (size 32): comm "apparmor_parser", pid 802, jiffies 4294913386 (age 4797.788s) hex dump (first 32 bytes): 01 00 00 00 2f 73 62 69 6e 2f 64 68 63 6c 69 65 ..../sbin/dhclie 6e 74 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 nt.kkkkkkkkkkkk. backtrace: [<ffffffff866a8b68>] kmemleak_alloc+0x28/0x50 [<ffffffff849a4d94>] __kmalloc+0x204/0x600 [<ffffffff8519e18e>] aa_str_alloc+0x5e/0x120 [<ffffffff851a10a2>] aa_policy_init+0x2a2/0x370 [<ffffffff851bc438>] aa_alloc_profile+0x88/0x220 [<ffffffff851c6d39>] unpack_profile+0x449/0x2530 [<ffffffff851ca8b7>] aa_unpack+0x447/0x151c [<ffffffff851bf994>] aa_replace_profiles+0x254/0x3f00 [<ffffffff8518f8e3>] policy_update+0x433/0x720 [<ffffffff8518fd0a>] profile_replace+0x13a/0x210 [<ffffffff84a5eb79>] __vfs_write+0xf9/0xdb0 [<ffffffff84a65c29>] vfs_write+0x189/0x640 [<ffffffff84a6b3a7>] SyS_write+0xf7/0x240 [<ffffffff866c8cee>] entry_SYSCALL_64_fastpath+0x1c/0xb1 [<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff8803fdc50008 (size 8192): comm "apparmor_parser", pid 802, jiffies 4294913386 (age 4827.224s) hex dump (first 32 bytes): 06 00 04 00 00 00 00 00 b1 04 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff866a8b68>] kmemleak_alloc+0x28/0x50 [<ffffffff849a9785>] __kmalloc_node+0x385/0x670 [<ffffffff8485620b>] kvmalloc_node+0x4b/0x80 [<ffffffff851a170d>] aa_dfa_unpack+0x41d/0x1de0 [<ffffffff851c5c4f>] unpack_dfa+0x14f/0x3d0 [<ffffffff851c7499>] unpack_profile+0xba9/0x2530 [<ffffffff851ca8b7>] aa_unpack+0x447/0x151c [<ffffffff851bf994>] aa_replace_profiles+0x254/0x3f00 [<ffffffff8518f8e3>] policy_update+0x433/0x720 [<ffffffff8518fd0a>] profile_replace+0x13a/0x210 [<ffffffff84a5eb79>] __vfs_write+0xf9/0xdb0 [<ffffffff84a65c29>] vfs_write+0x189/0x640 [<ffffffff84a6b3a7>] SyS_write+0xf7/0x240 [<ffffffff866c8cee>] entry_SYSCALL_64_fastpath+0x1c/0xb1 [<ffffffffffffffff>] 0xffffffffffffffff
I'm running Ubuntu 14.04 user space on that machine.
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