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| author | Vishal Goel <vishal.goel@samsung.com> | 2016-11-23 06:16:57 +0100 |
|---|---|---|
| committer | Casey Schaufler <casey@schaufler-ca.com> | 2017-01-10 18:47:20 +0100 |
| commit | 2e962e2fec5c35b91e3b541e2b8373504bf91e27 (patch) | |
| tree | 60f9eec5feb6f7b45fe43f80f9ee81a5a22c4905 /net/bluetooth/Kconfig | |
| parent | Smack: Fix the issue of wrong SMACK label update in socket bind fail case (diff) | |
| download | linux-2e962e2fec5c35b91e3b541e2b8373504bf91e27.tar.xz linux-2e962e2fec5c35b91e3b541e2b8373504bf91e27.zip | |
SMACK: Add new lock for adding entry in smack master list
"smk_set_access()" function adds a new rule entry in subject label specific
list(rule_list) and in global rule list(smack_rule_list) both. Mutex lock
(rule_lock) is used to avoid simultaneous updates. But this lock is subject
label specific lock. If 2 processes tries to add different rules(i.e with
different subject labels) simultaneously, then both the processes can take
the "rule_lock" respectively. So it will cause a problem while adding
entries in master rule list.
Now a new mutex lock(smack_master_list_lock) has been taken to add entry in
smack_rule_list to avoid simultaneous updates of different rules.
Signed-off-by: Vishal Goel <vishal.goel@samsung.com>
Signed-off-by: Himanshu Shukla <himanshu.sh@samsung.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'net/bluetooth/Kconfig')
0 files changed, 0 insertions, 0 deletions