BUG: unable to handle page fault for address: ffffc90000cc0030 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10000067 P4D 10000067 PUD 101ab067 PMD 10a9e067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2888 Comm: syz-executor.5 Not tainted 5.11.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run kernel/trace/bpf_trace.c:2088 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 kernel/trace/bpf_trace.c:2126 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 45 1b f7 ff e8 d0 5b 7d 07 31 ff 89 c3 89 c6 e8 b5 22 RSP: 0018:ffffc900020eeeb0 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffffc90000cc0000 RCX: ffffffff817bafce RDX: 0000000000000000 RSI: ffffc90000cc0038 RDI: ffffc900020eeed8 RBP: 1ffff9200041ddd7 R08: 0000000000000000 R09: ffffffff8d03798f R10: ffffffff817bacc5 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801afcd340 R14: 0000000000000001 R15: ffff88805b45d340 FS: 00007f0dca483700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000cc0030 CR3: 000000001f19b000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __bpf_trace_sched_switch+0xdc/0x120 include/trace/events/sched.h:222 __traceiter_sched_switch+0x64/0xb0 include/trace/events/sched.h:222 trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x11a6/0x21a0 kernel/sched/core.c:5061 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5326 irqentry_exit_cond_resched kernel/entry/common.c:393 [inline] irqentry_exit_cond_resched kernel/entry/common.c:385 [inline] irqentry_exit+0x7a/0xa0 kernel/entry/common.c:423 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 RIP: 0010:__lt_find include/linux/rbtree_latch.h:118 [inline] RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline] RIP: 0010:bpf_ksym_find+0x11d/0x1c0 kernel/bpf/core.c:667 Code: 85 93 00 00 00 4d 8b bc 24 60 ff ff ff 48 89 ef 4c 89 fe e8 95 68 f4 ff 4c 39 fd 0f 83 09 ff ff ff e8 77 62 f4 ff 48 8d 7b 10 <48> 89 f8 48 c1 e8 03 42 80 3c 28 00 75 7b 48 8b 5b 10 e8 5c 62 f4 RSP: 0018:ffffc900020ef218 EFLAGS: 00000246 RAX: 0000000000040000 RBX: ffff8880595eb1e0 RCX: ffffc900161b2000 RDX: 0000000000040000 RSI: ffffffff817e6609 RDI: ffff8880595eb1f0 RBP: 000000000045e219 R08: 000000000045e219 R09: 0000000000000001 R10: ffffffff817e65fb R11: 0000000000000000 R12: ffff8880595eb1e0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffffa004ec48 is_bpf_text_address+0x75/0x160 kernel/bpf/core.c:701 kernel_text_address kernel/extable.c:151 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:120 __kernel_text_address+0x9/0x30 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:318 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:313 arch_stack_walk+0x93/0xe0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:356 ____kasan_slab_free+0xe1/0x110 mm/kasan/common.c:362 kasan_slab_free include/linux/kasan.h:188 [inline] slab_free_hook mm/slub.c:1547 [inline] slab_free_freelist_hook+0x5d/0x150 mm/slub.c:1580 slab_free mm/slub.c:3142 [inline] kfree+0xdb/0x3b0 mm/slub.c:4124 pop_stack+0x1d0/0x530 kernel/bpf/verifier.c:952 do_check kernel/bpf/verifier.c:9661 [inline] do_check_common+0x40ac/0xcf30 kernel/bpf/verifier.c:11447 do_check_main kernel/bpf/verifier.c:11513 [inline] bpf_check+0x94d7/0xca90 kernel/bpf/verifier.c:12048 bpf_prog_load+0xe3e/0x1f40 kernel/bpf/syscall.c:2204 __do_sys_bpf+0x1251/0x4f10 kernel/bpf/syscall.c:4380 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0dca482c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 0000000000000048 RSI: 00000000200054c0 RDI: 0000000000000005 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007fffab958b7f R14: 00007f0dca4839c0 R15: 000000000119bf8c Modules linked in: CR2: ffffc90000cc0030 ---[ end trace faaaf6995ef9f998 ]--- RIP: 0010:bpf_dispatcher_nop_func include/linux/bpf.h:651 [inline] RIP: 0010:__bpf_trace_run kernel/trace/bpf_trace.c:2088 [inline] RIP: 0010:bpf_trace_run3+0x143/0x3f0 kernel/trace/bpf_trace.c:2126 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 45 1b f7 ff e8 d0 5b 7d 07 31 ff 89 c3 89 c6 e8 b5 22 RSP: 0018:ffffc900020eeeb0 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffffc90000cc0000 RCX: ffffffff817bafce RDX: 0000000000000000 RSI: ffffc90000cc0038 RDI: ffffc900020eeed8 RBP: 1ffff9200041ddd7 R08: 0000000000000000 R09: ffffffff8d03798f R10: ffffffff817bacc5 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801afcd340 R14: 0000000000000001 R15: ffff88805b45d340 FS: 00007f0dca483700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000cc0030 CR3: 000000001f19b000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600