Warning: Permanently added '[localhost]:18130' (ED25519) to the list of known hosts. executing program [ 67.354458][ T5301] [ 67.355412][ T5301] ============================= [ 67.357331][ T5301] WARNING: suspicious RCU usage [ 67.359473][ T5301] 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 Not tainted [ 67.362875][ T5301] ----------------------------- [ 67.364644][ T5301] kernel/events/callchain.c:162 suspicious rcu_dereference_check() usage! [ 67.367718][ T5301] [ 67.367718][ T5301] other info that might help us debug this: [ 67.367718][ T5301] [ 67.372167][ T5301] [ 67.372167][ T5301] rcu_scheduler_active = 2, debug_locks = 1 [ 67.375179][ T5301] 1 lock held by syz-executor258/5301: [ 67.377373][ T5301] #0: ffffffff8e938c60 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x38/0x80 [ 67.382509][ T5301] [ 67.382509][ T5301] stack backtrace: [ 67.384616][ T5301] CPU: 0 UID: 0 PID: 5301 Comm: syz-executor258 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 [ 67.384631][ T5301] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 67.384637][ T5301] Call Trace: [ 67.384643][ T5301] [ 67.384649][ T5301] dump_stack_lvl+0x241/0x360 [ 67.384666][ T5301] ? __pfx_dump_stack_lvl+0x10/0x10 [ 67.384677][ T5301] ? __pfx__printk+0x10/0x10 [ 67.384699][ T5301] lockdep_rcu_suspicious+0x226/0x340 [ 67.384717][ T5301] get_callchain_entry+0x2b2/0x3c0 [ 67.384731][ T5301] get_perf_callchain+0xec/0x970 [ 67.384743][ T5301] ? fd_install+0x9c/0x5d0 [ 67.384756][ T5301] ? __pfx_get_perf_callchain+0x10/0x10 [ 67.384769][ T5301] ? __lock_acquire+0x1397/0x2100 [ 67.384787][ T5301] __bpf_get_stack+0x41f/0xad0 [ 67.384805][ T5301] ? __pfx___bpf_get_stack+0x10/0x10 [ 67.384818][ T5301] ? __pfx_lock_acquire+0x10/0x10 [ 67.384833][ T5301] bpf_get_stack+0x33/0x50 [ 67.384844][ T5301] bpf_get_stack_raw_tp+0x1a3/0x240 [ 67.384859][ T5301] bpf_prog_b8a90dd1efcc4ad9+0x46/0x4a [ 67.384869][ T5301] bpf_prog_run_pin_on_cpu+0x67/0x150 [ 67.384886][ T5301] bpf_prog_test_run_syscall+0x316/0x4e0 [ 67.384903][ T5301] ? __pfx_bpf_prog_test_run_syscall+0x10/0x10 [ 67.384917][ T5301] ? __pfx_bpf_prog_test_run_syscall+0x10/0x10 [ 67.384931][ T5301] ? bpf_prog_test_run+0x234/0x360 [ 67.384942][ T5301] ? bpf_prog_test_run+0x2d5/0x360 [ 67.384954][ T5301] ? __pfx_bpf_prog_test_run_syscall+0x10/0x10 [ 67.384970][ T5301] bpf_prog_test_run+0x2e4/0x360 [ 67.384983][ T5301] __sys_bpf+0x48d/0x810 [ 67.384995][ T5301] ? __pfx___sys_bpf+0x10/0x10 [ 67.385005][ T5301] ? __rseq_handle_notify_resume+0x34d/0x14e0 [ 67.385026][ T5301] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 67.385041][ T5301] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.385055][ T5301] ? do_syscall_64+0x100/0x230 [ 67.385067][ T5301] __x64_sys_bpf+0x7c/0x90 [ 67.385074][ T5301] do_syscall_64+0xf3/0x230 [ 67.385082][ T5301] ? clear_bhb_loop+0x35/0x90 [ 67.385092][ T5301] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.385100][ T5301] RIP: 0033:0x7f0e5e25f6a9 [ 67.385108][ T5301] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 67.385113][ T5301] RSP: 002b:00007fff6fd279c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 67.385121][ T5301] RAX: ffffffffffffffda RBX: 00007fff6fd27b98 RCX: 00007f0e5e25f6a9 [ 67.385126][ T5301] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 67.385129][ T5301] RBP: 00007f0e5e2d2610 R08: 00007fff6fd27b98 R09: 00007fff6fd27b98 [ 67.385133][ T5301] R10: 00007fff6fd27b98 R11: 0000000000000246 R12: 0000000000000001 [ 67.385137][ T5301] R13: 00007fff6fd27b88 R14: 0000000000000001 R15: 0000000000000001 [ 67.385145][ T5301] VM DIAGNOSIS: 00:53:51 Registers: info registers vcpu 0 CPU#0 RAX=000000000000005d RBX=ffffffff9a7430c0 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc9000d1a71f0 R8 =ffffffff857683cb R9 =1ffff11003d7d046 R10=dffffc0000000000 R11=ffffffff85768380 R12=dffffc0000000000 R13=000000000000005d R14=000000000000005d R15=00000000000003f8 RIP=ffffffff857683fe RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 000055556e450380 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000000000000000 CR3=000000004362a000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000800000 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f0e5e2c3e44 00007f0e5e2d7240 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f0e5e2dda60 00007f0e5e2d25f8 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007f0e5e2c3e44 00007f0e5e2d7240 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f 2f2f2f2f2f2f2f2f ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6f6f723d52455355 0033373236303937 383532726f747563 6578652d7a79732f ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000