| TITLE: BUG: using __this_cpu_read() in preemptible code in ipcomp_init_state |
| |
| syzkaller login: [ 35.184476] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller195313/3344 |
| [ 35.193222] caller is __this_cpu_preempt_check+0x1c/0x20 |
| [ 35.198727] CPU: 1 PID: 3344 Comm: syzkaller195313 Not tainted 4.9.68-gfb66dc2 #107 |
| [ 35.206487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 35.215825] ffff8801c8e476d8 ffffffff81d90889 0000000000000001 ffffffff83c17800 |
| [ 35.223786] ffffffff83f42ec0 ffff8801c7643000 0000000000000003 ffff8801c8e47718 |
| [ 35.231779] ffffffff81df7854 ffff8801c8e47730 ffffffff83f42ec0 dffffc0000000000 |
| [ 35.239734] Call Trace: |
| [ 35.242294] [<ffffffff81d90889>] dump_stack+0xc1/0x128 |
| [ 35.247625] [<ffffffff81df7854>] check_preemption_disabled+0x1d4/0x200 |
| [ 35.254346] [<ffffffff81df78bc>] __this_cpu_preempt_check+0x1c/0x20 |
| [ 35.260808] [<ffffffff833f3f78>] ipcomp_init_state+0x188/0x930 |
| [ 35.266833] [<ffffffff81232141>] ? __lock_is_held+0xa1/0xf0 |
| [ 35.272602] [<ffffffff83360470>] ipcomp4_init_state+0xb0/0x7d0 |
| [ 35.278628] [<ffffffff833d2677>] __xfrm_init_state+0x3e7/0xb30 |
| [ 35.284654] [<ffffffff833d2dda>] xfrm_init_state+0x1a/0x20 |
| [ 35.290339] [<ffffffff8356cb49>] pfkey_add+0x1fb9/0x3470 |
| [ 35.295843] [<ffffffff8356ab90>] ? pfkey_delete+0x360/0x360 |
| [ 35.301604] [<ffffffff83561f00>] ? pfkey_seq_stop+0x80/0x80 |
| [ 35.307382] [<ffffffff82eea81a>] ? __skb_clone+0x24a/0x7d0 |
| [ 35.313066] [<ffffffff8356ab90>] ? pfkey_delete+0x360/0x360 |
| [ 35.318831] [<ffffffff835645ee>] pfkey_process+0x61e/0x730 |
| [ 35.324509] [<ffffffff83563fd0>] ? pfkey_send_new_mapping+0x11b0/0x11b0 |
| [ 35.331317] [<ffffffff81238c3b>] ? trace_hardirqs_on_caller+0x38b/0x590 |
| [ 35.338125] [<ffffffff83565e99>] pfkey_sendmsg+0x3a9/0x760 |
| [ 35.343802] [<ffffffff83565af0>] ? pfkey_spdget+0x820/0x820 |
| [ 35.349568] [<ffffffff82ecfb9a>] sock_sendmsg+0xca/0x110 |
| [ 35.355070] [<ffffffff82ed1791>] ___sys_sendmsg+0x6d1/0x7e0 |
| [ 35.360832] [<ffffffff82ed10c0>] ? copy_msghdr_from_user+0x550/0x550 |
| [ 35.367549] [<ffffffff81462e67>] ? __lru_cache_add+0x187/0x250 |
| [ 35.373571] [<ffffffff81465569>] ? lru_cache_add+0xd9/0x1e0 |
| [ 35.379335] [<ffffffff814cc2b2>] ? handle_mm_fault+0xb12/0x2530 |
| [ 35.385449] [<ffffffff838aa11c>] ? _raw_spin_unlock+0x2c/0x50 |
| [ 35.391387] [<ffffffff814cbe8e>] ? handle_mm_fault+0x6ee/0x2530 |
| [ 35.397498] [<ffffffff81232141>] ? __lock_is_held+0xa1/0xf0 |
| [ 35.403261] [<ffffffff814cb7a0>] ? __pmd_alloc+0x410/0x410 |
| [ 35.408938] [<ffffffff815cd8b8>] ? __fget_light+0x158/0x1e0 |
| [ 35.414709] [<ffffffff815cd958>] ? __fdget+0x18/0x20 |
| [ 35.419865] [<ffffffff82ed37c6>] __sys_sendmsg+0xd6/0x190 |
| [ 35.425453] [<ffffffff82ed36f0>] ? SyS_shutdown+0x1b0/0x1b0 |
| executing program |
| [ 35.431217] [<ffffffff810dd47c>] ? __do_page_fault+0x5ec/0xd40 |
| [ 35.437239] [<ffffffff810dd24d>] ? __do_page_fault+0x3bd/0xd40 |
| [ 35.443262] [<ffffffff81238c3b>] ? trace_hardirqs_on_caller+0x38b/0x590 |
| [ 35.450067] [<ffffffff82ed38ad>] SyS_sendmsg+0x2d/0x50 |
| [ 35.455398] [<ffffffff838aa9c5>] entry_SYSCALL_64_fastpath+0x23/0xc6 |
