Todd Kjos afbec52fbc binder: use cred instead of task for getsecid ...

commit 4d5b553974 upstream.

Use the 'struct cred' saved at binder_open() to lookup
the security ID via security_cred_getsecid(). This
ensures that the security context that opened binder
is the one used to generate the secctx.

Cc: stable@vger.kernel.org # 5.4+
Fixes: ec74136ded ("binder: create node flag to request sender's security context")
Signed-off-by: Todd Kjos <tkjos@google.com>
Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-11-18 14:03:36 +01:00

..

binder_alloc_selftest.c

binder: print warnings when detecting oneway spamming.

2020-09-03 18:24:41 +02:00

binder_alloc.c

binder: add flag to clear buffer on txn complete

2020-12-30 11:54:09 +01:00

binder_alloc.h

binder: add flag to clear buffer on txn complete

2020-12-30 11:54:09 +01:00

binder_internal.h

binder: prevent UAF for binderfs devices II

2020-03-03 19:58:37 +01:00

binder_trace.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282

2019-06-05 17:36:37 +02:00

binder.c

binder: use cred instead of task for getsecid

2021-11-18 14:03:36 +01:00

binderfs.c

binderfs: make symbol 'binderfs_fs_parameters' static

2020-09-03 18:24:39 +02:00

Kconfig

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-14 01:57:21 +09:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00