Reverting the patch "unix: avoid use-after-free in ep_remove_wait_queue" in 4.1 fixes my problem (for now). The original patch went into 4.4, but was back-ported to several stable trees:
v3.2: a3b0f6e8a21ef02f69a15abac440572d8cde8c2a v3.18: 72032798034d921ed565e3bf8dfdc3098f6473e2 v4.1: 5c77e26862ce604edea05b3442ed765e9756fe0f v4.2: bad967fdd8ecbdd171f5f243657be033d2d081a7 v4.3: 58a6a46a036ce81a2a8ecaa6fc1537c894349e3f v4.4: 7d267278a9ece963d77eefec61630223fce08c6c
See <https://lkml.org/lkml/2016/2/2/474>
Reverting the patch "unix: avoid use-after-free in ep_remove_ wait_queue" in 4.1 fixes my problem (for now). The original patch went into 4.4, but was back-ported to several stable trees:
v3.2: a3b0f6e8a21ef02 f69a15abac44057 2d8cde8c2a ed565e3bf8dfdc3 098f6473e2 edea05b3442ed76 5e9756fe0f 171f5f243657be0 33d2d081a7 a2a8ecaa6fc1537 c894349e3f 3d77eefec616302 23fce08c6c
v3.18: 72032798034d921
v4.1: 5c77e26862ce604
v4.2: bad967fdd8ecbdd
v4.3: 58a6a46a036ce81
v4.4: 7d267278a9ece96
See <https:/ /lkml.org/ lkml/2016/ 2/2/474>