BUG: unable to handle page fault for address: ffffffffffffffa0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD c48f067 P4D c48f067 PUD c491067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9477 Comm: syz-executor.2 Not tainted 6.2.0-rc6-syzkaller-01486-g0b34d68049b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:atm_tc_destroy+0x7d/0x250 net/sched/sch_atm.c:588 Code: 0f 84 52 01 00 00 48 bd 00 00 00 00 00 fc ff df e8 88 0e 8b f9 4c 8d 73 28 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 70 01 00 00 <48> 8b 7b 28 e8 ea f4 f2 ff 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 RSP: 0018:ffffc900033df3f0 EFLAGS: 00010246 RAX: 1ffffffffffffff4 RBX: ffffffffffffff78 RCX: ffffc90004d61000 RDX: 0000000000040000 RSI: ffffffff87f5ed08 RDI: ffff88807c5c1800 RBP: dffffc0000000000 R08: 0000000000000007 R09: fffffffffffff000 R10: ffffffffffffffea R11: 0000000000000000 R12: ffff88807c5c1b70 R13: ffff88807c5c1800 R14: ffffffffffffffa0 R15: ffff88804f93b000 FS: 00007fccb574b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffa0 CR3: 00000000686c5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qdisc_create+0xaca/0x1150 net/sched/sch_api.c:1329 tc_modify_qdisc+0x948/0x19c0 net/sched/sch_api.c:1662 rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6174 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2574 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 ____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: 0033:0x7fccb4a8c0f9 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:00007fccb574b168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fccb4bac050 RCX: 00007fccb4a8c0f9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007fccb4ae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd8e168bcf R14: 00007fccb574b300 R15: 0000000000022000 Modules linked in: CR2: ffffffffffffffa0 ---[ end trace 0000000000000000 ]--- RIP: 0010:atm_tc_destroy+0x7d/0x250 net/sched/sch_atm.c:588 Code: 0f 84 52 01 00 00 48 bd 00 00 00 00 00 fc ff df e8 88 0e 8b f9 4c 8d 73 28 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 70 01 00 00 <48> 8b 7b 28 e8 ea f4 f2 ff 4c 89 f0 48 c1 e8 03 80 3c 28 00 0f 85 RSP: 0018:ffffc900033df3f0 EFLAGS: 00010246 RAX: 1ffffffffffffff4 RBX: ffffffffffffff78 RCX: ffffc90004d61000 RDX: 0000000000040000 RSI: ffffffff87f5ed08 RDI: ffff88807c5c1800 RBP: dffffc0000000000 R08: 0000000000000007 R09: fffffffffffff000 R10: ffffffffffffffea R11: 0000000000000000 R12: ffff88807c5c1b70 R13: ffff88807c5c1800 R14: ffffffffffffffa0 R15: ffff88804f93b000 FS: 00007fccb574b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffa0 CR3: 00000000686c5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f 84 52 01 00 00 je 0x158 6: 48 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%rbp d: fc ff df 10: e8 88 0e 8b f9 callq 0xf98b0e9d 15: 4c 8d 73 28 lea 0x28(%rbx),%r14 19: 4c 89 f0 mov %r14,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 24: 0f 85 70 01 00 00 jne 0x19a * 2a: 48 8b 7b 28 mov 0x28(%rbx),%rdi <-- trapping instruction 2e: e8 ea f4 f2 ff callq 0xfff2f51d 33: 4c 89 f0 mov %r14,%rax 36: 48 c1 e8 03 shr $0x3,%rax 3a: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) 3e: 0f .byte 0xf 3f: 85 .byte 0x85