syzbot has found a reproducer for the following issue on: HEAD commit: 229fae38d0fc libbpf: Add "bool skipped" to struct bpf_map git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=1519ce4db00000 kernel config: https://syzkaller.appspot.com/x/.config?x=a262045c4c15a9e0 dashboard link: https://syzkaller.appspot.com/bug?extid=cecf5b7071a0dfb76530 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119b6f3ab00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=176cf805b00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cecf5b7071a0dfb76530@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3597 at mm/util.c:597 kvmalloc_node+0x111/0x120 mm/util.c:597 Modules linked in: CPU: 1 PID: 3597 Comm: syz-executor773 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvmalloc_node+0x111/0x120 mm/util.c:597 Code: 01 00 00 00 4c 89 e7 e8 7d f7 0c 00 49 89 c5 e9 69 ff ff ff e8 a0 7e d0 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 8f 7e d0 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 76 RSP: 0018:ffffc900020ffc58 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff9200041ff97 RCX: 0000000000000000 RDX: ffff8880766a1d00 RSI: ffffffff81a747e1 RDI: 0000000000000003 RBP: 0000000000102cc0 R08: 000000007fffffff R09: 00000000ffffffff R10: ffffffff81a7479e R11: 0000000000000000 R12: 00000000fffffffe R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000 FS: 0000555556e04300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000140 CR3: 000000001db54000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kvmalloc include/linux/slab.h:741 [inline] map_lookup_elem kernel/bpf/syscall.c:1090 [inline] __sys_bpf+0x3a6b/0x5f10 kernel/bpf/syscall.c:4603 __do_sys_bpf kernel/bpf/syscall.c:4722 [inline] __se_sys_bpf kernel/bpf/syscall.c:4720 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4720 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: 0033:0x7f6bde27f079 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc0cb30c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bde27f079 RDX: 0000000000000020 RSI: 0000000020000100 RDI: 0000000000000001 RBP: 00007f6bde243060 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6bde2430f0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK>
