syz_tun: entered allmulticast mode
dvmrp1: entered allmulticast mode
BUG: assuming non migratable context at ./include/linux/filter.h:703
in_atomic(): 0, irqs_disabled(): 0, migration_disabled() 0 pid: 12803, name: syz.4.2007
3 locks held by syz.4.2007/12803:
 #0: ffffffff8f509f08 (rtnl_mutex){+.+.}-{4:4}, at: ip_mroute_setsockopt+0x107/0xf60 net/ipv4/ipmr.c:1386
 #1: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #1: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #1: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: ipmr_mfc_add+0x11b/0x2850 net/ipv4/ipmr.c:1226
 #2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
 #2: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: nf_hook+0x9d/0x380 include/linux/netfilter.h:241
CPU: 0 UID: 0 PID: 12803 Comm: syz.4.2007 Not tainted 6.16.0-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 __cant_migrate+0x238/0x2e0 kernel/sched/core.c:8860
 __bpf_prog_run include/linux/filter.h:703 [inline]
 bpf_prog_run include/linux/filter.h:725 [inline]
 nf_hook_run_bpf+0x8f/0x1f0 net/netfilter/nf_bpf_link.c:20
 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
 nf_hook+0x217/0x380 include/linux/netfilter.h:272
 NF_HOOK include/linux/netfilter.h:315 [inline]
 ip_mc_output+0x22d/0x590 net/ipv4/ip_output.c:399
 NF_HOOK include/linux/netfilter.h:317 [inline]
 ipmr_queue_xmit+0xf12/0x16f0 net/ipv4/ipmr.c:1949
 ipmr_cache_resolve net/ipv4/ipmr.c:1025 [inline]
 ipmr_mfc_add+0x1f63/0x2850 net/ipv4/ipmr.c:1286
 ip_mroute_setsockopt+0xcf1/0xf60 net/ipv4/ipmr.c:1483
 do_ip_setsockopt+0xf11/0x2d00 net/ipv4/ip_sockglue.c:948
 ip_setsockopt+0x66/0x110 net/ipv4/ip_sockglue.c:1417
 do_sock_setsockopt+0x179/0x1b0 net/socket.c:2296
 __sys_setsockopt net/socket.c:2321 [inline]
 __do_sys_setsockopt net/socket.c:2327 [inline]
 __se_sys_setsockopt net/socket.c:2324 [inline]
 __x64_sys_setsockopt+0x13f/0x1b0 net/socket.c:2324
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8f4dd8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f4ec13038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f8f4dfb5fa0 RCX: 00007f8f4dd8ebe9
RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007f8f4de11e19 R08: 000000000000003c R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8f4dfb6038 R14: 00007f8f4dfb5fa0 R15: 00007ffc35e17788
 </TASK>