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| author | Eric Biggers <[email protected]> | 2018-01-31 07:11:24 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2018-02-16 10:15:44 +0000 |
| commit | f88982679f54f75daa5b8eff3da72508f1e7422f (patch) | |
| tree | fe9af10dcb73db2bea487a81e71c1cc091f786e2 /lib/dma-debug.c | |
| parent | Linux 4.16-rc1 (diff) | |
| download | kernel-f88982679f54f75daa5b8eff3da72508f1e7422f.tar.gz kernel-f88982679f54f75daa5b8eff3da72508f1e7422f.zip | |
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 <[email protected]>
Fixes: 457b9a6f09f0 ("Staging: android: add binder driver")
Cc: [email protected]
Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'lib/dma-debug.c')
0 files changed, 0 insertions, 0 deletions