BUG: unable to handle page fault for address: ffffc90000008000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 100000067 P4D 100000067 PUD 100154067 PMD 100155067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 65 Comm: kworker/0:2 Not tainted 6.1.75-syzkaller-00069-gfa87a072a7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: mld mld_ifc_work RIP: 0010:jhash include/linux/jhash.h:80 [inline] RIP: 0010:hash+0x2a4/0xc20 kernel/bpf/bloom_filter.c:39 Code: 00 00 00 fc ff df 0f b6 04 10 84 c0 0f 85 ff 00 00 00 4a 8d 7c 36 03 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 17 01 00 00 <46> 03 3c 36 4a 8d 7c 36 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 RSP: 0018:ffffc90000007208 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000004cc253f2 RCX: ffffffff8191d585 RDX: dffffc0000000000 RSI: ffffc900000072c8 RDI: ffffc90000008003 RBP: ffffc90000007248 R08: 00000000fffff2b9 R09: fffffbfff0e9e1ae R10: 0000000000000000 R11: dffffc0000000001 R12: 000000008364687d R13: 00000000fffff2b9 R14: 0000000000000d38 R15: 00000000020bab06 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000008000 CR3: 0000000144faf000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: bloom_map_peek_elem+0xac/0x1a0 kernel/bpf/bloom_filter.c:51 bpf_prog_00798911c748094f+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:987 [inline] __bpf_prog_run include/linux/filter.h:600 [inline] bpf_prog_run include/linux/filter.h:607 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2275 [inline] bpf_trace_run4+0x18d/0x2f0 kernel/trace/bpf_trace.c:2316 __bpf_trace_fib6_table_lookup+0x35/0x40 include/trace/events/fib6.h:13 trace_fib6_table_lookup include/trace/events/fib6.h:13 [inline] fib6_table_lookup+0xa1b/0xa80 net/ipv6/route.c:2198 ip6_pol_route+0x151/0x14a0 net/ipv6/route.c:2221 ip6_pol_route_input+0x55/0x80 net/ipv6/route.c:2278 pol_lookup_func include/net/ip6_fib.h:589 [inline] fib6_rule_lookup+0x25a/0x620 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup net/ipv6/route.c:2290 [inline] ip6_route_input+0x733/0xc50 net/ipv6/route.c:2586 ip6_rcv_finish_core net/ipv6/ip6_input.c:66 [inline] ip6_rcv_finish+0x150/0x350 net/ipv6/ip6_input.c:77 NF_HOOK include/linux/netfilter.h:305 [inline] ipv6_rcv+0xeb/0x270 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5535 [inline] __netif_receive_skb+0x1c6/0x530 net/core/dev.c:5649 process_backlog+0x32c/0x630 net/core/dev.c:5977 __napi_poll+0xbe/0x5c0 net/core/dev.c:6544 napi_poll net/core/dev.c:6611 [inline] net_rx_action+0x595/0xdd0 net/core/dev.c:6722 __do_softirq+0x1d8/0x661 kernel/softirq.c:617 do_softirq+0xf6/0x150 kernel/softirq.c:499 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:423 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:838 [inline] __dev_queue_xmit+0x1597/0x36e0 net/core/dev.c:4327 dev_queue_xmit include/linux/netdevice.h:3076 [inline] neigh_hh_output include/net/neighbour.h:536 [inline] neigh_output include/net/neighbour.h:550 [inline] ip6_finish_output2+0x100d/0x1820 net/ipv6/ip6_output.c:134 __ip6_finish_output net/ipv6/ip6_output.c:201 [inline] ip6_finish_output+0x50f/0xa60 net/ipv6/ip6_output.c:212 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:233 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] mld_sendpack+0x803/0xe40 net/ipv6/mcast.c:1820 mld_send_cr net/ipv6/mcast.c:2121 [inline] mld_ifc_work+0x7dc/0xba0 net/ipv6/mcast.c:2653 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446 kthread+0x26d/0x300 kernel/kthread.c:386 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: CR2: ffffc90000008000 ---[ end trace 0000000000000000 ]--- RIP: 0010:jhash include/linux/jhash.h:80 [inline] RIP: 0010:hash+0x2a4/0xc20 kernel/bpf/bloom_filter.c:39 Code: 00 00 00 fc ff df 0f b6 04 10 84 c0 0f 85 ff 00 00 00 4a 8d 7c 36 03 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 17 01 00 00 <46> 03 3c 36 4a 8d 7c 36 04 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 RSP: 0018:ffffc90000007208 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000004cc253f2 RCX: ffffffff8191d585 RDX: dffffc0000000000 RSI: ffffc900000072c8 RDI: ffffc90000008003 RBP: ffffc90000007248 R08: 00000000fffff2b9 R09: fffffbfff0e9e1ae R10: 0000000000000000 R11: dffffc0000000001 R12: 000000008364687d R13: 00000000fffff2b9 R14: 0000000000000d38 R15: 00000000020bab06 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000008000 CR3: 0000000144faf000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: df 0f fisttps (%rdi) 2: b6 04 mov $0x4,%dh 4: 10 84 c0 0f 85 ff 00 adc %al,0xff850f(%rax,%rax,8) b: 00 00 add %al,(%rax) d: 4a 8d 7c 36 03 lea 0x3(%rsi,%r14,1),%rdi 12: 48 89 f8 mov %rdi,%rax 15: 48 c1 e8 03 shr $0x3,%rax 19: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax 1d: 84 c0 test %al,%al 1f: 0f 85 17 01 00 00 jne 0x13c * 25: 46 03 3c 36 add (%rsi,%r14,1),%r15d <-- trapping instruction 29: 4a 8d 7c 36 04 lea 0x4(%rsi,%r14,1),%rdi 2e: 48 89 f8 mov %rdi,%rax 31: 48 c1 e8 03 shr $0x3,%rax 35: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax 39: 84 c0 test %al,%al