list_del corruption, ffff88807dc831e0->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:48! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5020 Comm: syz-executor.5 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold+0x37/0x4a lib/list_debug.c:48 Code: f1 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 00 41 05 8a e8 c6 6b f1 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 60 41 05 8a e8 b2 6b f1 ff <0f> 0b 48 89 ee 48 c7 c7 20 42 05 8a e8 a1 6b f1 ff 0f 0b 83 c3 01 RSP: 0018:ffffc90003f37bd0 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88807dc83150 RCX: 0000000000000000 RDX: ffff888020f08000 RSI: ffffffff815f1db8 RDI: fffff520007e6f6c RBP: ffff88807dc831e0 R08: 000000000000004e R09: 0000000000000000 R10: ffffffff815ebb5e R11: 0000000000000000 R12: dead000000000122 R13: ffffffff8bc15a80 R14: 0000000000000000 R15: ffffc90003f37de8 FS: 00007f5afefbd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5afef39718 CR3: 000000007b619000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:134 [inline] list_del_rcu include/linux/rculist.h:157 [inline] __bpf_ksym_del kernel/bpf/core.c:636 [inline] bpf_ksym_del+0x94/0x1d0 kernel/bpf/core.c:642 bpf_prog_kallsyms_del kernel/bpf/core.c:675 [inline] bpf_prog_kallsyms_del_all+0x25a/0x2f0 kernel/bpf/core.c:526 __bpf_prog_put_noref+0x1f/0x400 kernel/bpf/syscall.c:1780 __bpf_prog_put.constprop.0+0x1d3/0x220 kernel/bpf/syscall.c:1822 bpf_prog_put kernel/bpf/syscall.c:1829 [inline] bpf_prog_get_fd_by_id kernel/bpf/syscall.c:3458 [inline] __sys_bpf+0x1849/0x5970 kernel/bpf/syscall.c:4666 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline] __se_sys_bpf kernel/bpf/syscall.c:4735 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4735 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: 0033:0x7f5b00668e99 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:00007f5afefbd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f5b0077c030 RCX: 00007f5b00668e99 RDX: 0000000000000048 RSI: 0000000020000340 RDI: 000000000000000a RBP: 00007f5b006c3031 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9a75d04f R14: 00007f5afefbd300 R15: 0000000000022000 Modules linked in: ---[ end trace ead8090feda392e9 ]--- RIP: 0010:__list_del_entry_valid.cold+0x37/0x4a lib/list_debug.c:48 Code: f1 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 00 41 05 8a e8 c6 6b f1 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 60 41 05 8a e8 b2 6b f1 ff <0f> 0b 48 89 ee 48 c7 c7 20 42 05 8a e8 a1 6b f1 ff 0f 0b 83 c3 01 RSP: 0018:ffffc90003f37bd0 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88807dc83150 RCX: 0000000000000000 RDX: ffff888020f08000 RSI: ffffffff815f1db8 RDI: fffff520007e6f6c RBP: ffff88807dc831e0 R08: 000000000000004e R09: 0000000000000000 R10: ffffffff815ebb5e R11: 0000000000000000 R12: dead000000000122 R13: ffffffff8bc15a80 R14: 0000000000000000 R15: ffffc90003f37de8 FS: 00007f5afefbd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5afef39718 CR3: 000000007b619000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400