BUG: unable to handle page fault for address: ffffc90000f6c030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10c00067 P4D 10c00067 PUD 10dab067 PMD 11a0e067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 17575 Comm: syz-executor.2 Not tainted 5.11.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bpf_dispatcher_nop_func syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/trace/bpf_trace.c:2085 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/trace/bpf_trace.c:2123 Code: f7 ff 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9f 02 00 00 48 8d 73 38 48 8d 7c 24 28 53 30 e8 35 19 f7 ff e8 80 5f 7e 07 31 ff 89 c3 89 c6 e8 a5 20 RSP: 0018:ffffc90001e0f470 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffffc90000f6c000 RCX: ffffffff817ba74e RDX: 0000000000000000 RSI: ffffc90000f6c038 RDI: ffffc90001e0f498 RBP: 1ffff920003c1e8f R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff817ba6bc R11: 0000000000000000 R12: 0000000000000001 R13: ffff88805a633780 R14: 0000000000000001 R15: ffff88802213b780 FS: 00007f65467ed700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000f6c030 CR3: 0000000021a74000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __bpf_trace_sched_switch+0xdc/0x120 syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/trace/events/sched.h:222 __traceiter_sched_switch+0x64/0xb0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/trace/events/sched.h:222 trace_sched_switch syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/trace/events/sched.h:222 [inline] __schedule+0x11a6/0x21a0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/sched/core.c:5075 preempt_schedule_irq+0x4e/0x90 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/sched/core.c:5340 irqentry_exit_cond_resched syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/entry/common.c:393 [inline] irqentry_exit_cond_resched syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/entry/common.c:385 [inline] irqentry_exit+0x7a/0xa0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/entry/common.c:423 asm_sysvec_apic_timer_interrupt+0x12/0x20 syzkaller/managers/upstream-bpf-kasan-gce/kernel/./arch/x86/include/asm/idtentry.h:629 RIP: 0010:arch_atomic64_read syzkaller/managers/upstream-bpf-kasan-gce/kernel/./arch/x86/include/asm/atomic64_64.h:22 [inline] RIP: 0010:atomic64_read syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/asm-generic/atomic-instrumented.h:838 [inline] RIP: 0010:atomic_long_read syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/asm-generic/atomic-long.h:29 [inline] RIP: 0010:dev_get_stats+0xcf/0x2b0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev.c:10411 Code: e8 96 f2 7c fa 48 8d ab c0 01 00 00 be 08 00 00 00 48 89 ef e8 72 cc bf fa 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 58 01 00 00 49 8d 7c 24 30 48 8b ab c0 01 00 00 RSP: 0018:ffffc90001e0f7d8 EFLAGS: 00000a02 RAX: dffffc0000000000 RBX: ffff88805ac08000 RCX: ffffffff86f5cb6e RDX: 1ffff1100b581038 RSI: 0000000000000008 RDI: ffff88805ac081c0 RBP: ffff88805ac081c0 R08: 0000000000000000 R09: ffff88805ac081c7 R10: ffffed100b581038 R11: 0000000000000000 R12: ffff88806413c110 R13: ffffffff8a5571e0 R14: ffff8880718213c0 R15: ffff88805ac08000 rtnl_fill_stats+0x48/0xa90 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:1211 rtnl_fill_ifinfo+0x1330/0x3e30 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:1783 rtmsg_ifinfo_build_skb+0xcd/0x1a0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:3798 rtmsg_ifinfo_event syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:3830 [inline] rtmsg_ifinfo_event syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:3821 [inline] rtnetlink_event+0x123/0x1d0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/rtnetlink.c:5604 notifier_call_chain+0xb5/0x200 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/notifier.c:83 call_netdevice_notifiers_info+0xb5/0x130 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev.c:2040 call_netdevice_notifiers_mtu syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev.c:2089 [inline] dev_set_mtu_ext+0x38b/0x590 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev.c:8620 dev_set_mtu+0x8e/0x120 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev.c:8641 dev_ifsioc+0x4a8/0xa70 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev_ioctl.c:272 dev_ioctl+0x1b1/0xc40 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/core/dev_ioctl.c:511 sock_do_ioctl+0x148/0x2d0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/socket.c:1060 sock_ioctl+0x477/0x6a0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/net/socket.c:1177 vfs_ioctl syzkaller/managers/upstream-bpf-kasan-gce/kernel/fs/ioctl.c:48 [inline] __do_sys_ioctl syzkaller/managers/upstream-bpf-kasan-gce/kernel/fs/ioctl.c:753 [inline] __se_sys_ioctl syzkaller/managers/upstream-bpf-kasan-gce/kernel/fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 syzkaller/managers/upstream-bpf-kasan-gce/kernel/fs/ioctl.c:739 do_syscall_64+0x2d/0x70 syzkaller/managers/upstream-bpf-kasan-gce/kernel/arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x465b09 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f65467ed188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020000000 RSI: 0000000000008922 RDI: 0000000000000004 RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe62d915af R14: 00007f65467ed300 R15: 0000000000022000 Modules linked in: CR2: ffffc90000f6c030 ---[ end trace 844acc25f6e69b5a ]--- RIP: 0010:bpf_dispatcher_nop_func syzkaller/managers/upstream-bpf-kasan-gce/kernel/./include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/trace/bpf_trace.c:2085 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 syzkaller/managers/upstream-bpf-kasan-gce/kernel/kernel/trace/bpf_trace.c:2123 Code: f7 ff 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9f 02 00 00 48 8d 73 38 48 8d 7c 24 28 53 30 e8 35 19 f7 ff e8 80 5f 7e 07 31 ff 89 c3 89 c6 e8 a5 20 RSP: 0018:ffffc90001e0f470 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffffc90000f6c000 RCX: ffffffff817ba74e RDX: 0000000000000000 RSI: ffffc90000f6c038 RDI: ffffc90001e0f498 RBP: 1ffff920003c1e8f R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff817ba6bc R11: 0000000000000000 R12: 0000000000000001 R13: ffff88805a633780 R14: 0000000000000001 R15: ffff88802213b780 FS: 00007f65467ed700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000f6c030 CR3: 0000000021a74000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600