BUG: assuming non migratable context at include/linux/filter.h:599 in_atomic(): 0, irqs_disabled(): 0, migration_disabled() 0 pid: 9931, name: syz.0.1161 3 locks held by syz.0.1161/9931: #0: ffff88807b8cb730 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1731 [inline] #0: ffff88807b8cb730 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_sendmsg+0xb92/0x27e0 net/sctp/socket.c:1970 #1: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline] #1: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline] #1: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: sctp_v6_xmit+0x65d/0x1230 net/sctp/ipv6.c:249 #2: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline] #2: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline] #2: ffffffff8cd2fba0 (rcu_read_lock){....}-{1:2}, at: nf_hook+0x9e/0x370 include/linux/netfilter.h:228 CPU: 0 PID: 9931 Comm: syz.0.1161 Not tainted 6.6.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Call Trace: dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106 __cant_migrate+0x234/0x2e0 kernel/sched/core.c:10269 __bpf_prog_run include/linux/filter.h:599 [inline] bpf_prog_run include/linux/filter.h:619 [inline] nf_hook_run_bpf+0x90/0x1e0 net/netfilter/nf_bpf_link.c:20 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook+0x215/0x370 include/linux/netfilter.h:259 NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip6_output+0x272/0x3b0 net/ipv6/ip6_output.c:240 dst_output include/net/dst.h:467 [inline] NF_HOOK include/linux/netfilter.h:304 [inline] ip6_xmit+0x10a7/0x1830 net/ipv6/ip6_output.c:360 sctp_v6_xmit+0x9e3/0x1230 net/sctp/ipv6.c:250 sctp_packet_transmit+0x2488/0x2a30 net/sctp/output.c:653 sctp_packet_singleton+0x234/0x330 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x4f1/0x3100 net/sctp/outqueue.c:1212 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:-1 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x52d6/0x59a0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 sctp_sendmsg_to_asoc+0x101c/0x17f0 net/sctp/socket.c:1841 sctp_sendmsg+0x1941/0x27e0 net/sctp/socket.c:2031 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x46a/0x620 net/socket.c:2201 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0xf0 net/socket.c:2209 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f002838ebe9 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:00007f00292e2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f00285b5fa0 RCX: 00007f002838ebe9 RDX: 0000000000034000 RSI: 0000200000847fff RDI: 0000000000000005 RBP: 00007f0028411e19 R08: 000020000005ffe4 R09: 000000000000001c R10: 0000000000000600 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f00285b6038 R14: 00007f00285b5fa0 R15: 00007fff139f4e18