program: r0 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000300)={0x6, 0x3, &(0x7f0000000140)=@framed, &(0x7f00000001c0)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x90) r1 = socket$phonet_pipe(0x23, 0x5, 0x2) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'netdevsim0\x00', 0x0}) r3 = bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f00000000c0)={r0, r2, 0x25, 0x0, @void}, 0x10) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f00000002c0)={r3, r0, 0x4, r0}, 0x10) [ 58.236005][ T5317] ------------[ cut here ]------------ [ 58.238215][ T5317] WARNING: CPU: 0 PID: 5317 at ./include/net/netdev_lock.h:54 dev_xdp_install+0x5e6/0x760 [ 58.242968][ T5317] Modules linked in: [ 58.245444][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-05877-g1a9239bb4253 #0 PREEMPT(full) [ 58.249878][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 58.256001][ T5317] RIP: 0010:dev_xdp_install+0x5e6/0x760 [ 58.259810][ T5317] Code: 06 48 3b 84 24 a0 00 00 00 0f 85 8e 01 00 00 89 d8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 fb dc e2 f7 90 <0f> 0b 90 e9 2d fc ff ff e8 ed dc e2 f7 c6 05 4c b5 66 06 01 90 48 [ 58.273088][ T5317] RSP: 0018:ffffc9000d52f980 EFLAGS: 00010283 [ 58.276110][ T5317] RAX: ffffffff89e09a05 RBX: 0000000000000000 RCX: 0000000000100000 [ 58.280207][ T5317] RDX: ffffc9000ebd2000 RSI: 000000000000014e RDI: 000000000000014f [ 58.283953][ T5317] RBP: ffffc9000d52fa80 R08: ffffffff89e095e9 R09: 0000000000000000 [ 58.287252][ T5317] R10: ffffc9000d52f9e0 R11: fffff52001aa5f40 R12: ffffc9000195e000 [ 58.290375][ T5317] R13: 1ffff92001aa5f38 R14: dffffc0000000000 R15: ffff888052ed4000 [ 58.293419][ T5317] FS: 00007fbd2f31f6c0(0000) GS:ffff88808c60f000(0000) knlGS:0000000000000000 [ 58.296675][ T5317] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.299248][ T5317] CR2: 00007fbd2e794570 CR3: 000000004015e000 CR4: 0000000000352ef0 [ 58.302666][ T5317] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.305899][ T5317] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.309002][ T5317] Call Trace: [ 58.310408][ T5317] [ 58.311841][ T5317] ? __warn+0x165/0x4d0 [ 58.313566][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.315511][ T5317] ? report_bug+0x2b3/0x500 [ 58.317372][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.319400][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.321326][ T5317] ? dev_xdp_install+0x5e8/0x760 [ 58.323520][ T5317] ? handle_bug+0x89/0x170 [ 58.325262][ T5317] ? exc_invalid_op+0x1a/0x50 [ 58.327176][ T5317] ? asm_exc_invalid_op+0x1a/0x20 [ 58.329265][ T5317] ? dev_xdp_install+0x1c9/0x760 [ 58.331297][ T5317] ? dev_xdp_install+0x5e5/0x760 [ 58.333437][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.335410][ T5317] ? __pfx_nsim_bpf+0x10/0x10 [ 58.337310][ T5317] ? __pfx_dev_xdp_install+0x10/0x10 [ 58.339418][ T5317] ? __pfx_nsim_bpf+0x10/0x10 [ 58.341267][ T5317] dev_xdp_attach+0xc5d/0xfe0 [ 58.343200][ T5317] bpf_xdp_link_attach+0x3a2/0x760 [ 58.345180][ T5317] ? __pfx_bpf_xdp_link_attach+0x10/0x10 [ 58.347385][ T5317] ? __fget_files+0x39d/0x420 [ 58.349525][ T5317] ? __fget_files+0x2a/0x420 [ 58.351836][ T5317] ? attach_type_to_prog_type+0x316/0x460 [ 58.354159][ T5317] ? bpf_prog_attach_check_attach_type+0x2cb/0x4f0 [ 58.356734][ T5317] link_create+0x440/0x870 [ 58.358548][ T5317] __sys_bpf+0x559/0x850 [ 58.360370][ T5317] ? __pfx___sys_bpf+0x10/0x10 [ 58.363219][ T5317] ? __rseq_handle_notify_resume+0x3c8/0x15d0 [ 58.365706][ T5317] __x64_sys_bpf+0x7c/0x90 [ 58.367450][ T5317] do_syscall_64+0xf3/0x230 [ 58.369237][ T5317] ? clear_bhb_loop+0x45/0xa0 [ 58.371125][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.373572][ T5317] RIP: 0033:0x7fbd2e58d169 [ 58.375385][ T5317] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 58.383047][ T5317] RSP: 002b:00007fbd2f31f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.386260][ T5317] RAX: ffffffffffffffda RBX: 00007fbd2e7a5fa0 RCX: 00007fbd2e58d169 [ 58.389406][ T5317] RDX: 0000000000000010 RSI: 00002000000000c0 RDI: 000000000000001c [ 58.392341][ T5317] RBP: 00007fbd2e60e2a0 R08: 0000000000000000 R09: 0000000000000000 [ 58.395438][ T5317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.398500][ T5317] R13: 0000000000000000 R14: 00007fbd2e7a5fa0 R15: 00007ffe6da02138 [ 58.401757][ T5317] [ 58.402985][ T5317] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.405889][ T5317] CPU: 0 UID: 0 PID: 5317 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-05877-g1a9239bb4253 #0 PREEMPT(full) [ 58.410405][ T5317] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 58.414721][ T5317] Call Trace: [ 58.416074][ T5317] [ 58.417285][ T5317] dump_stack_lvl+0x241/0x360 [ 58.419208][ T5317] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.421335][ T5317] ? __pfx__printk+0x10/0x10 [ 58.423202][ T5317] ? vscnprintf+0x5d/0x90 [ 58.424980][ T5317] panic+0x349/0x880 [ 58.426561][ T5317] ? __warn+0x174/0x4d0 [ 58.428227][ T5317] ? __pfx_panic+0x10/0x10 [ 58.430062][ T5317] __warn+0x344/0x4d0 [ 58.431675][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.433476][ T5317] report_bug+0x2b3/0x500 [ 58.435092][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.436903][ T5317] ? dev_xdp_install+0x5e6/0x760 [ 58.438685][ T5317] ? dev_xdp_install+0x5e8/0x760 [ 58.440500][ T5317] handle_bug+0x89/0x170 [ 58.442085][ T5317] exc_invalid_op+0x1a/0x50 [ 58.443730][ T5317] asm_exc_invalid_op+0x1a/0x20 [ 58.445496][ T5317] RIP: 0010:dev_xdp_install+0x5e6/0x760 [ 58.447684][ T5317] Code: 06 48 3b 84 24 a0 00 00 00 0f 85 8e 01 00 00 89 d8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 fb dc e2 f7 90 <0f> 0b 90 e9 2d fc ff ff e8 ed dc e2 f7 c6 05 4c b5 66 06 01 90 48 [ 58.455234][ T5317] RSP: 0018:ffffc9000d52f980 EFLAGS: 00010283 [ 58.457610][ T5317] RAX: ffffffff89e09a05 RBX: 0000000000000000 RCX: 0000000000100000 [ 58.460711][ T5317] RDX: ffffc9000ebd2000 RSI: 000000000000014e RDI: 000000000000014f [ 58.463810][ T5317] RBP: ffffc9000d52fa80 R08: ffffffff89e095e9 R09: 0000000000000000 [ 58.466998][ T5317] R10: ffffc9000d52f9e0 R11: fffff52001aa5f40 R12: ffffc9000195e000 [ 58.470180][ T5317] R13: 1ffff92001aa5f38 R14: dffffc0000000000 R15: ffff888052ed4000 [ 58.473352][ T5317] ? dev_xdp_install+0x1c9/0x760 [ 58.475327][ T5317] ? dev_xdp_install+0x5e5/0x760 [ 58.477307][ T5317] ? __pfx_nsim_bpf+0x10/0x10 [ 58.479177][ T5317] ? __pfx_dev_xdp_install+0x10/0x10 [ 58.481269][ T5317] ? __pfx_nsim_bpf+0x10/0x10 [ 58.483121][ T5317] dev_xdp_attach+0xc5d/0xfe0 [ 58.485115][ T5317] bpf_xdp_link_attach+0x3a2/0x760 [ 58.487154][ T5317] ? __pfx_bpf_xdp_link_attach+0x10/0x10 [ 58.489402][ T5317] ? __fget_files+0x39d/0x420 [ 58.491283][ T5317] ? __fget_files+0x2a/0x420 [ 58.493106][ T5317] ? attach_type_to_prog_type+0x316/0x460 [ 58.495351][ T5317] ? bpf_prog_attach_check_attach_type+0x2cb/0x4f0 [ 58.497936][ T5317] link_create+0x440/0x870 [ 58.499700][ T5317] __sys_bpf+0x559/0x850 [ 58.501449][ T5317] ? __pfx___sys_bpf+0x10/0x10 [ 58.503379][ T5317] ? __rseq_handle_notify_resume+0x3c8/0x15d0 [ 58.505838][ T5317] __x64_sys_bpf+0x7c/0x90 [ 58.507625][ T5317] do_syscall_64+0xf3/0x230 [ 58.509450][ T5317] ? clear_bhb_loop+0x45/0xa0 [ 58.511353][ T5317] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.513732][ T5317] RIP: 0033:0x7fbd2e58d169 [ 58.515508][ T5317] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 58.522930][ T5317] RSP: 002b:00007fbd2f31f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 58.526245][ T5317] RAX: ffffffffffffffda RBX: 00007fbd2e7a5fa0 RCX: 00007fbd2e58d169 [ 58.529471][ T5317] RDX: 0000000000000010 RSI: 00002000000000c0 RDI: 000000000000001c [ 58.532415][ T5317] RBP: 00007fbd2e60e2a0 R08: 0000000000000000 R09: 0000000000000000 [ 58.535341][ T5317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.538450][ T5317] R13: 0000000000000000 R14: 00007fbd2e7a5fa0 R15: 00007ffe6da02138 [ 58.541546][ T5317] [ 58.542973][ T5317] Kernel Offset: disabled [ 58.544596][ T5317] Rebooting in 86400 seconds..