When the aa_profile is released, we will call free_ruleset to
release aa_ruleset, but we don't free the memory of aa_ruleset,
so there will be memleak, fix it.
unreferenced object 0xffff8881475df800 (size 1024):
comm "apparmor_parser", pid 883, jiffies
4294899650 (age 9114.088s)
hex dump (first 32 bytes):
00 f8 5d 47 81 88 ff ff 00 f8 5d 47 81 88 ff ff ..]G......]G....
00 00 00 00 00 00 00 00 00 dc 65 47 81 88 ff ff ..........eG....
backtrace:
[<
00000000370e658e>] __kmem_cache_alloc_node+0x182/0x700
[<
00000000f2f5a6d2>] kmalloc_trace+0x2c/0x130
[<
00000000c5c905b3>] aa_alloc_profile+0x1bc/0x5c0
[<
00000000bc4fa72b>] unpack_profile+0x319/0x30c0
[<
00000000eab791e9>] aa_unpack+0x307/0x1450
[<
000000002c3a6ee1>] aa_replace_profiles+0x1b8/0x3790
[<
00000000d0c3fd54>] policy_update+0x35a/0x890
[<
00000000d04fed90>] profile_replace+0x1d1/0x260
[<
00000000cba0c0a7>] vfs_write+0x283/0xd10
[<
000000006bae64a5>] ksys_write+0x134/0x260
[<
00000000b2fd8f31>] __x64_sys_write+0x78/0xb0
[<
00000000f3c8a015>] do_syscall_64+0x5c/0x90
[<
00000000a242b1db>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Fixes:
217af7e2f4de ("apparmor: refactor profile rules and attachments")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>