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| author | Eric Biggers <ebiggers@google.com> | 2018-01-30 23:11:24 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-16 11:15:44 +0100 |
| commit | f88982679f54f75daa5b8eff3da72508f1e7422f (patch) | |
| tree | fe9af10dcb73db2bea487a81e71c1cc091f786e2 /mm | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-f88982679f54f75daa5b8eff3da72508f1e7422f.tar.bz2 | |
binder: check for binder_thread allocation failure in binder_poll()
If the kzalloc() in binder_get_thread() fails, binder_poll()
dereferences the resulting NULL pointer.
Fix it by returning POLLERR if the memory allocation failed.
This bug was found by syzkaller using fault injection.
Reported-by: syzbot <syzkaller@googlegroups.com>
Fixes: 457b9a6f09f0 ("Staging: android: add binder driver")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions