general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 6971 Comm: syz-executor.3 Not tainted 6.3.0-rc6-syzkaller-01689-g99676a576641 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:jhash+0x339/0x610 include/linux/jhash.h:95 Code: 83 fd 01 0f 84 5f ff ff ff eb de 83 fd 05 74 3a e8 dc e4 72 fd 48 8d 7b 05 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 96 02 00 00 RSP: 0018:ffffc900045ff298 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000004 RCX: ffffc9000b462000 RDX: 0000000000000001 RSI: ffffffff840ff8e4 RDI: 0000000000000009 RBP: 0000000000000006 R08: 0000000000000005 R09: 000000000000000c R10: 0000000000000006 R11: 0000000000000000 R12: 00000000f526852d R13: 00000000d3d44422 R14: 00000000d3d44422 R15: 00000000d3d44422 FS: 00007f83793f0700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32521000 CR3: 0000000029b3c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rht_key_hashfn include/linux/rhashtable.h:159 [inline] __rhashtable_lookup include/linux/rhashtable.h:604 [inline] rhashtable_lookup include/linux/rhashtable.h:646 [inline] rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] get_hwsim_data_ref_from_addr+0xb9/0x600 drivers/net/wireless/virtual/mac80211_hwsim.c:757 hwsim_pmsr_report_nl+0xe7/0xd50 drivers/net/wireless/virtual/mac80211_hwsim.c:3764 genl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 net/netlink/genetlink.c:968 genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x4ff/0x7e0 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2575 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x925/0xe30 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0xde/0x190 net/socket.c:747 ____sys_sendmsg+0x71c/0x900 net/socket.c:2501 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2555 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f837868c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f83793f0168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f83787abf80 RCX: 00007f837868c169 RDX: 0000000000000800 RSI: 0000000020001ac0 RDI: 0000000000000004 RBP: 00007f83786e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe55b4f6af R14: 00007f83793f0300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:jhash+0x339/0x610 include/linux/jhash.h:95 Code: 83 fd 01 0f 84 5f ff ff ff eb de 83 fd 05 74 3a e8 dc e4 72 fd 48 8d 7b 05 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 96 02 00 00 RSP: 0018:ffffc900045ff298 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000004 RCX: ffffc9000b462000 RDX: 0000000000000001 RSI: ffffffff840ff8e4 RDI: 0000000000000009 RBP: 0000000000000006 R08: 0000000000000005 R09: 000000000000000c R10: 0000000000000006 R11: 0000000000000000 R12: 00000000f526852d R13: 00000000d3d44422 R14: 00000000d3d44422 R15: 00000000d3d44422 FS: 00007f83793f0700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32829000 CR3: 0000000029b3c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 83 fd 01 cmp $0x1,%ebp 3: 0f 84 5f ff ff ff je 0xffffff68 9: eb de jmp 0xffffffe9 b: 83 fd 05 cmp $0x5,%ebp e: 74 3a je 0x4a 10: e8 dc e4 72 fd callq 0xfd72e4f1 15: 48 8d 7b 05 lea 0x5(%rbx),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2e: 48 89 fa mov %rdi,%rdx 31: 83 e2 07 and $0x7,%edx 34: 38 d0 cmp %dl,%al 36: 7f 08 jg 0x40 38: 84 c0 test %al,%al 3a: 0f 85 96 02 00 00 jne 0x2d6