general protection fault in netif_napi

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-54	KASAN: slab-out-of-bounds Write in netif_napi_del	C			11	612d	677d	0/2	auto-obsoleted due to no activity on 2023/04/22 14:06
linux-4.19	general protection fault in netif_napi_del (2)	C		error	28	447d	681d	0/1	upstream: reported C repro on 2022/06/13 16:31

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11638 Comm: kworker/u4:2 Not tainted 4.19.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:flush_gro_hash net/core/dev.c:6233 [inline] RIP: 0010:netif_napi_del+0x1fe/0x380 net/core/dev.c:6248 Code: 28 00 0f 85 10 01 00 00 49 39 ec 48 8b 5d 00 75 05 eb 2d 48 89 c3 e8 01 68 d1 fa 48 89 ef e8 a9 ba fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 d6 00 00 00 49 39 dc 48 8b 03 48 89 dd 75 d3 RSP: 0018:ffff888044dcf9b8 EFLAGS: 00010a02 RAX: 171ffffd1ffffb76 RBX: b8ffffe8ffffdbb0 RCX: ffffffff868e27bb RDX: 0000000000000000 RSI: ffffffff86936a07 RDI: 0000000000000001 RBP: ffffe8ffffdbb0b9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffe8ffffdbb0b8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffe8ffffdbb078 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feb9c021d40 CR3: 00000000b5333000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gro_cells_destroy net/core/gro_cells.c:102 [inline] gro_cells_destroy+0x10b/0x340 net/core/gro_cells.c:92 ip_tunnel_dev_free+0x15/0x60 net/ipv4/ip_tunnel.c:965 netdev_run_todo+0x6d2/0xab0 net/core/dev.c:8987 ip_tunnel_delete_nets+0x3d8/0x580 net/ipv4/ip_tunnel.c:1079 ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:553 process_one_work+0x864/0x1570 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: ---[ end trace a9d1b0d517a293e7 ]--- RIP: 0010:flush_gro_hash net/core/dev.c:6233 [inline] RIP: 0010:netif_napi_del+0x1fe/0x380 net/core/dev.c:6248 Code: 28 00 0f 85 10 01 00 00 49 39 ec 48 8b 5d 00 75 05 eb 2d 48 89 c3 e8 01 68 d1 fa 48 89 ef e8 a9 ba fa ff 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 d6 00 00 00 49 39 dc 48 8b 03 48 89 dd 75 d3 RSP: 0018:ffff888044dcf9b8 EFLAGS: 00010a02 RAX: 171ffffd1ffffb76 RBX: b8ffffe8ffffdbb0 RCX: ffffffff868e27bb RDX: 0000000000000000 RSI: ffffffff86936a07 RDI: 0000000000000001 RBP: ffffe8ffffdbb0b9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffe8ffffdbb0b8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffe8ffffdbb078 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feb9c021d40 CR3: 00000000925bf000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400