kasan: CONFIG_KASAN_INLINE enabled IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready kasan: GPF could be caused by NULL-ptr deref or user memory access IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready general protection fault: 0000 [#1] PREEMPT SMP KASAN IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready Modules linked in: IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready CPU: 1 PID: 6744 Comm: syz-executor.0 Not tainted 4.14.156-syzkaller #0 8021q: adding VLAN 0 to HW filter on device team0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready task: ffff8880993942c0 task.stack: ffff88808d860000 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline] RIP: 0010:refcount_sub_and_test+0x1c/0x90 lib/refcount.c:179 RSP: 0018:ffff88808d867bd0 EFLAGS: 00010282 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11013272971 RDX: 0000000000000004 RSI: 0000000000000020 RDI: 0000000000000001 RBP: ffff88808d867be0 R08: ffff888099394b88 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808ff4e540 R13: dffffc0000000000 R14: ffff88808ff4e554 R15: 0000000000000000 FS: 0000000002321940(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000073c061 CR3: 00000000992bc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: refcount_dec_and_test+0x11/0x20 lib/refcount.c:212 vb2_vmalloc_put+0x11/0x50 drivers/media/v4l2-core/videobuf2-vmalloc.c:68 __vb2_buf_mem_free+0xf3/0x1c0 drivers/media/v4l2-core/videobuf2-core.c:240 __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:409 [inline] __vb2_queue_free+0x580/0x770 drivers/media/v4l2-core/videobuf2-core.c:454 vb2_core_queue_release+0x57/0x70 drivers/media/v4l2-core/videobuf2-core.c:2043 vb2_queue_release drivers/media/v4l2-core/videobuf2-v4l2.c:669 [inline] _vb2_fop_release+0x1ac/0x280 drivers/media/v4l2-core/videobuf2-v4l2.c:840 vb2_fop_release+0x66/0xd0 drivers/media/v4l2-core/videobuf2-v4l2.c:854 vivid_fop_release+0x15f/0x3a0 drivers/media/platform/vivid/vivid-core.c:486 v4l2_release+0xee/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:446 __fput+0x235/0x750 fs/file_table.c:210 ____fput+0x9/0x10 fs/file_table.c:244 task_work_run+0xeb/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x16a/0x1b0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x418/0x5b0 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4129e1 RSP: 002b:00007ffc4a607020 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004129e1 RDX: 0000001b2eb20000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000740868 R08: 000000000000ccd4 R09: 000000000000ccd4 R10: 00007ffc4a6070f0 R11: 0000000000000293 R12: 0000000000000001 R13: 000000000000cce5 R14: 000000000000cd12 R15: 000000000073bf0c Code: b5 9f 6d 05 00 0f 84 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready 42 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready 02 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready 00 00 5d c3 66 90 48 b8 00 00 00 00 00 fc ff df 55 48 89 f2 48 89 e5 48 c1 ea 03 53 89 fb 48 83 ec 08 <0f> b6 14 02 48 89 f0 83 IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready e0 IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready 07 83 c0 03 38 d0 7c 04 84 d2 75 3a RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88808d867bd0 RIP: atomic_read arch/x86/include/asm/atomic.h:27 [inline] RSP: ffff88808d867bd0 RIP: refcount_sub_and_test+0x1c/0x90 lib/refcount.c:179 RSP: ffff88808d867bd0 ---[ end trace 8492a8fe17a66cf5 ]---