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f4a04c97fb
Ensure that the allocated bud->log_hash (if any) is freed in all cases
when the bud itself is freed, to fix this leak caught by kmemleak:
# keyctl add logon foo:bar data @s
# echo clear > /sys/kernel/debug/kmemleak
# mount -t ubifs /dev/ubi0_0 mnt -o auth_hash_name=sha256,auth_key=foo:bar
# echo a > mnt/x
# umount mnt
# mount -t ubifs /dev/ubi0_0 mnt -o auth_hash_name=sha256,auth_key=foo:bar
# umount mnt
# sleep 5
# echo scan > /sys/kernel/debug/kmemleak
# echo scan > /sys/kernel/debug/kmemleak
# cat /sys/kernel/debug/kmemleak
unreferenced object 0xff... (size 128):
comm "mount"
backtrace:
__kmalloc
__ubifs_hash_get_desc+0x5d/0xe0 ubifs
ubifs_replay_journal
ubifs_mount
...
Fixes: da8ef65f95 ("ubifs: Authenticate replayed journal")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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.