general protection fault, probably for non-canonical address 0xdffffc00e0e00000: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000707000000-0x0000000707000007] CPU: 1 PID: 23474 Comm: syz-executor.0 Tainted: G W 5.14.0-rc1-next-20210713-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:976 [inline] RIP: 0010:debug_check_no_obj_freed+0x1d3/0x420 lib/debugobjects.c:1018 Code: 39 00 0f 85 0f 02 00 00 48 89 45 08 4d 89 30 4c 89 c7 4d 89 68 08 e8 7c d0 ff ff 48 85 ed 74 2c 49 89 e8 4c 89 c0 48 c1 e8 03 <42> 80 3c 38 00 0f 84 2e ff ff ff 4c 89 c7 4c 89 44 24 38 e8 35 b3 RSP: 0018:ffffc9000175f4d0 EFLAGS: 00010006 RAX: 00000000e0e00000 RBX: ffff88802b2ea000 RCX: ffffffff815b8690 RDX: 1ffffffff20882a5 RSI: 0000000000000004 RDI: ffff8880001291d8 RBP: 0000000707000000 R08: 0000000707000000 R09: ffff88805876a448 R10: fffff520002ebe88 R11: 000000000000003f R12: 0000000000000002 R13: dead000000000122 R14: dead000000000100 R15: dffffc0000000000 FS: 00007fa96e8b7700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 00000000556ee000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: slab_free_hook mm/slub.c:1625 [inline] slab_free_freelist_hook+0x171/0x240 mm/slub.c:1675 slab_free mm/slub.c:3235 [inline] kfree+0xeb/0x650 mm/slub.c:4295 free_func_state kernel/bpf/verifier.c:886 [inline] free_func_state kernel/bpf/verifier.c:880 [inline] free_verifier_state+0xc4/0x250 kernel/bpf/verifier.c:902 pop_stack+0x1c8/0x530 kernel/bpf/verifier.c:1004 do_check kernel/bpf/verifier.c:10871 [inline] do_check_common+0x3553/0xca30 kernel/bpf/verifier.c:12847 do_check_main kernel/bpf/verifier.c:12913 [inline] bpf_check+0x8b0e/0xbcb0 kernel/bpf/verifier.c:13480 bpf_prog_load+0xe57/0x21f0 kernel/bpf/syscall.c:2274 __sys_bpf+0x65a/0x53b0 kernel/bpf/syscall.c:4469 __do_sys_bpf kernel/bpf/syscall.c:4573 [inline] __se_sys_bpf kernel/bpf/syscall.c:4571 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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:00007fa96e8b7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000048 RSI: 00000000200017c0 RDI: 0000000000000005 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe232fc77f R14: 00007fa96e8b7300 R15: 0000000000022000 Modules linked in: ---[ end trace d84274d300843ee0 ]--- RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:976 [inline] RIP: 0010:debug_check_no_obj_freed+0x1d3/0x420 lib/debugobjects.c:1018 Code: 39 00 0f 85 0f 02 00 00 48 89 45 08 4d 89 30 4c 89 c7 4d 89 68 08 e8 7c d0 ff ff 48 85 ed 74 2c 49 89 e8 4c 89 c0 48 c1 e8 03 <42> 80 3c 38 00 0f 84 2e ff ff ff 4c 89 c7 4c 89 44 24 38 e8 35 b3 RSP: 0018:ffffc9000175f4d0 EFLAGS: 00010006 RAX: 00000000e0e00000 RBX: ffff88802b2ea000 RCX: ffffffff815b8690 RDX: 1ffffffff20882a5 RSI: 0000000000000004 RDI: ffff8880001291d8 RBP: 0000000707000000 R08: 0000000707000000 R09: ffff88805876a448 R10: fffff520002ebe88 R11: 000000000000003f R12: 0000000000000002 R13: dead000000000122 R14: dead000000000100 R15: dffffc0000000000 FS: 00007fa96e8b7700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 00000000556ee000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400