program: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000200)=ANY=[@ANYBLOB="3000000010000100"/20, @ANYRES32=0x0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00\b\x00\n\x00', @ANYRES32=0x0, @ANYBLOB="08001b"], 0x30}}, 0x0) syz_clone(0x82020400, 0x0, 0x0, 0x0, 0x0, 0x0) waitid(0x0, 0x0, 0x0, 0x41000004, 0x0) r1 = socket$nl_route(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_team(r1, 0x8933, &(0x7f0000000000)={'team0\x00', 0x0}) sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000100)=@newlink={0x3c, 0x10, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x10104}, [@IFLA_IFNAME={0x14, 0x3, 'ip6gre0\x00'}, @IFLA_MASTER={0x8, 0xa, r2}]}, 0x3c}}, 0x0) socket$nl_route(0x10, 0x3, 0x0) (async) sendmsg$nl_route(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000200)=ANY=[@ANYBLOB="3000000010000100"/20, @ANYRES32=0x0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00\b\x00\n\x00', @ANYRES32=0x0, @ANYBLOB="08001b"], 0x30}}, 0x0) (async) syz_clone(0x82020400, 0x0, 0x0, 0x0, 0x0, 0x0) (async) waitid(0x0, 0x0, 0x0, 0x41000004, 0x0) (async) socket$nl_route(0x10, 0x3, 0x0) (async) ioctl$ifreq_SIOCGIFINDEX_team(r1, 0x8933, &(0x7f0000000000)) (async) sendmsg$nl_route(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000100)=@newlink={0x3c, 0x10, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x10104}, [@IFLA_IFNAME={0x14, 0x3, 'ip6gre0\x00'}, @IFLA_MASTER={0x8, 0xa, r2}]}, 0x3c}}, 0x0) (async) [ 85.613144][ T4682] Bluetooth: hci0: command tx timeout [ 85.727973][ T5340] bridge_slave_0: left allmulticast mode [ 85.738792][ T5340] bridge_slave_0: left promiscuous mode [ 85.750692][ T5340] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.783278][ T5340] bridge_slave_1: left allmulticast mode [ 85.785832][ T5340] bridge_slave_1: left promiscuous mode [ 85.788773][ T5340] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.799947][ T5340] bond0: (slave bond_slave_0): Releasing backup interface [ 85.808282][ T5340] bond0: (slave bond_slave_1): Releasing backup interface [ 85.820141][ T5340] team0: Port device team_slave_0 removed [ 85.830742][ T5340] team0: Port device team_slave_1 removed [ 85.835323][ T5340] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 85.839204][ T5340] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 85.848516][ T5340] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 85.859077][ T5340] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 85.864454][ T5340] A link change request failed with some changes committed already. Interface hsr_slave_0 may have been left with an inconsistent configuration, please check. [ 85.881980][ T5347] ip6gre0: entered promiscuous mode [ 85.890271][ T5347] team0: Port device ip6gre0 added [ 85.922852][ T5340] team0: Port device ip6gre0 removed [ 85.946769][ T5340] A link change request failed with some changes committed already. Interface hsr_slave_0 may have been left with an inconsistent configuration, please check. [ 85.956559][ T5336] skbuff: skb_under_panic: text:ffffffff8a27ee08 len:136 put:40 head:ffff8880111f9000 data:ffff8880111f8fe8 tail:0x70 end:0x6c0 dev:team0 [ 85.972635][ T5336] ------------[ cut here ]------------ [ 85.975309][ T5336] kernel BUG at net/core/skbuff.c:213! [ 85.977941][ T5336] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 85.980828][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: kworker/0:6 Not tainted syzkaller #0 PREEMPT(full) [ 85.984927][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.989666][ T5336] Workqueue: mld mld_ifc_work [ 85.991870][ T5336] RIP: 0010:skb_panic+0x157/0x160 [ 85.994067][ T5336] Code: c7 60 ac 6f 8c 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 55 41 57 41 56 e8 ce 6a f5 ff 48 83 c4 20 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 86.002708][ T5336] RSP: 0018:ffffc9000b027400 EFLAGS: 00010286 [ 86.005488][ T5336] RAX: 0000000000000087 RBX: dffffc0000000000 RCX: 93e7bd3eef233300 [ 86.008840][ T5336] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 86.012215][ T5336] RBP: 00000000000006c0 R08: ffffc9000b027167 R09: 1ffff92001604e2c [ 86.015573][ T5336] R10: dffffc0000000000 R11: fffff52001604e2d R12: ffff888011a7d510 [ 86.018968][ T5336] R13: ffff8880111f9000 R14: ffff8880111f8fe8 R15: 0000000000000070 [ 86.022609][ T5336] FS: 0000000000000000(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 [ 86.026530][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.029380][ T5336] CR2: 00007f5d84192990 CR3: 000000000dd3a000 CR4: 0000000000352ef0 [ 86.032861][ T5336] Call Trace: [ 86.034515][ T5336] [ 86.035943][ T5336] ? ip6gre_header+0xc8/0x790 [ 86.038210][ T5336] ? ip6gre_header+0xc8/0x790 [ 86.040360][ T5336] skb_push+0xc3/0xe0 [ 86.042191][ T5336] ip6gre_header+0xc8/0x790 [ 86.044184][ T5336] ? neigh_connected_output+0x1ea/0x460 [ 86.046556][ T5336] ? __pfx_ip6gre_header+0x10/0x10 [ 86.048851][ T5336] ? neigh_connected_output+0x1ea/0x460 [ 86.051323][ T5336] ? read_seqbegin+0xac/0x180 [ 86.053343][ T5336] ? neigh_connected_output+0x1ea/0x460 [ 86.055769][ T5336] ? lockdep_hardirqs_on+0x7b/0x110 [ 86.058209][ T5336] ? __pfx_ip6gre_header+0x10/0x10 [ 86.060501][ T5336] neigh_connected_output+0x286/0x460 [ 86.062911][ T5336] ip6_finish_output+0x234/0x7d0 [ 86.065239][ T5336] ? ip6_output+0x126/0x550 [ 86.067290][ T5336] ip6_output+0x340/0x550 [ 86.069505][ T5336] NF_HOOK+0x9e/0x380 [ 86.071459][ T5336] ? NF_HOOK+0x101/0x380 [ 86.073471][ T5336] ? __pfx_NF_HOOK+0x10/0x10 [ 86.075657][ T5336] ? __pfx_dst_output+0x10/0x10 [ 86.078300][ T5336] ? lockdep_hardirqs_on+0x7b/0x110 [ 86.080648][ T5336] ? __local_bh_enable_ip+0xd0/0x130 [ 86.083018][ T5336] ? icmp6_dst_alloc+0x3a5/0x420 [ 86.085433][ T5336] mld_sendpack+0x8d4/0xe60 [ 86.087539][ T5336] ? mld_sendpack+0x1e7/0xe60 [ 86.089612][ T5336] ? __pfx_mld_sendpack+0x10/0x10 [ 86.091787][ T5336] mld_ifc_work+0x83e/0xd60 [ 86.093773][ T5336] ? process_scheduled_works+0x9ef/0x1770 [ 86.096166][ T5336] process_scheduled_works+0xad1/0x1770 [ 86.098582][ T5336] ? __pfx_process_scheduled_works+0x10/0x10 [ 86.101185][ T5336] ? do_raw_spin_lock+0x121/0x290 [ 86.103463][ T5336] worker_thread+0x8a0/0xda0 [ 86.105590][ T5336] ? __kthread_parkme+0x7b/0x200 [ 86.108582][ T5336] kthread+0x711/0x8a0 [ 86.111138][ T5336] ? __pfx_worker_thread+0x10/0x10 [ 86.113886][ T5336] ? __pfx_kthread+0x10/0x10 [ 86.115912][ T5336] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.118255][ T5336] ? __pfx_kthread+0x10/0x10 [ 86.120231][ T5336] ret_from_fork+0x510/0xa50 [ 86.122254][ T5336] ? __pfx_ret_from_fork+0x10/0x10 [ 86.124537][ T5336] ? __switch_to+0xc9e/0x1480 [ 86.126562][ T5336] ? __pfx_kthread+0x10/0x10 [ 86.128639][ T5336] ret_from_fork_asm+0x1a/0x30 [ 86.130717][ T5336] [ 86.132172][ T5336] Modules linked in: [ 86.134554][ T5336] ---[ end trace 0000000000000000 ]---