3622ad25d4
When the proxy isn't replaced and the profile is removed, the proxy is being leaked resulting in a kmemleak check message of unreferenced object 0xffff888077a3a490 (size 16): comm "apparmor_parser", pid 128041, jiffies 4322684109 (age 1097.028s) hex dump (first 16 bytes): 03 00 00 00 00 00 00 00 b0 92 fd 4b 81 88 ff ff ...........K.... backtrace: [<0000000084d5daf2>] aa_alloc_proxy+0x58/0xe0 [<00000000ecc0e21a>] aa_alloc_profile+0x159/0x1a0 [<000000004cc9ce15>] unpack_profile+0x275/0x1c40 [<000000007332b3ca>] aa_unpack+0x1e7/0x7e0 [<00000000e25e31bd>] aa_replace_profiles+0x18a/0x1d10 [<00000000350d9415>] policy_update+0x237/0x650 [<000000003fbf934e>] profile_load+0x122/0x160 [<0000000047f7b781>] vfs_write+0x139/0x290 [<000000008ad12358>] ksys_write+0xcd/0x170 [<000000001a9daa7b>] do_syscall_64+0x70/0x310 [<00000000b9efb0cf>] entry_SYSCALL_64_after_hwframe+0x49/0xb3 Make sure to cleanup the profile's embedded label which will result on the proxy being properly freed. Fixes: 637f688dc3dc ("apparmor: switch from profiles to using labels on contexts") Signed-off-by: John Johansen <john.johansen@canonical.com>
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Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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