============================= [ BUG: Invalid wait context ] 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 Not tainted ----------------------------- syz.2.36/6008 is trying to lock: ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue_buddy mm/page_alloc.c:2909 [inline] ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: rmqueue mm/page_alloc.c:3082 [inline] ffff88813fffc298 (&zone->lock){-.-.}-{3:3}, at: get_page_from_freelist+0xb3d/0x37a0 mm/page_alloc.c:3473 other info that might help us debug this: context-{2:2} no locks held by syz.2.36/6008. stack backtrace: CPU: 0 UID: 0 PID: 6008 Comm: syz.2.36 Not tainted 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline] check_wait_context kernel/locking/lockdep.c:4898 [inline] __lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 rmqueue_buddy mm/page_alloc.c:2909 [inline] rmqueue mm/page_alloc.c:3082 [inline] get_page_from_freelist+0xb3d/0x37a0 mm/page_alloc.c:3473 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 alloc_pages_mpol_noprof+0x3e1/0x780 mm/mempolicy.c:2269 stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627 kasan_save_stack+0x4f/0x60 mm/kasan/common.c:48 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:544 task_work_add+0xd9/0x490 kernel/task_work.c:77 __run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1223 [inline] run_posix_cpu_timers+0x6ac/0x810 kernel/time/posix-cpu-timers.c:1422 tick_sched_handle kernel/time/tick-sched.c:276 [inline] tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x551/0xd30 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline] RIP: 0010:lock_acquire+0x14c/0x550 kernel/locking/lockdep.c:5825 Code: 0f 85 8f 01 00 00 65 48 8b 1c 25 00 d6 03 00 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 e5 02 00 00 <83> 3b 00 0f 85 62 01 00 00 4c 8d bc 24 80 00 00 00 4c 89 fb 48 c1 RSP: 0018:ffffc900042ff780 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888027468adc RCX: ffffffff817ac034 RDX: 0000000000000000 RSI: ffffffff8c5fb200 RDI: ffffffff8c5fb1c0 RBP: ffffc900042ff8c8 R08: ffffffff901983b7 R09: 1ffffffff2033076 R10: dffffc0000000000 R11: fffffbfff2033077 R12: 1ffff9200085fef8 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88813fffc3c0 __raw_spin_trylock include/linux/spinlock_api_smp.h:90 [inline] _raw_spin_trylock+0x46/0x80 kernel/locking/spinlock.c:138 spin_trylock include/linux/spinlock.h:361 [inline] rmqueue_pcplist mm/page_alloc.c:3032 [inline] rmqueue mm/page_alloc.c:3076 [inline] get_page_from_freelist+0x7d3/0x37a0 mm/page_alloc.c:3473 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] bpf_ringbuf_area_alloc kernel/bpf/ringbuf.c:124 [inline] bpf_ringbuf_alloc+0xcb/0x410 kernel/bpf/ringbuf.c:172 ringbuf_map_alloc+0x1d7/0x2f0 kernel/bpf/ringbuf.c:207 map_create+0x946/0x11c0 kernel/bpf/syscall.c:1442 __sys_bpf+0x6d1/0x810 kernel/bpf/syscall.c:5772 __do_sys_bpf kernel/bpf/syscall.c:5897 [inline] __se_sys_bpf kernel/bpf/syscall.c:5895 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f22ec185d29 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 RSP: 002b:00007f22ececf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f22ec375fa0 RCX: 00007f22ec185d29 RDX: 0000000000000050 RSI: 0000000020000180 RDI: 0000000000000000 RBP: 00007f22ec201b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f22ec375fa0 R15: 00007f22ec49fa28 gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_pac7302 1-1:0.0: URB error -71, resubmitting gspca_main: Resubmit URB failed with error -19 ---------------- Code disassembly (best guess): 0: 0f 85 8f 01 00 00 jne 0x195 6: 65 48 8b 1c 25 00 d6 mov %gs:0x3d600,%rbx d: 03 00 f: 48 81 c3 dc 0a 00 00 add $0xadc,%rbx 16: 48 89 d8 mov %rbx,%rax 19: 48 c1 e8 03 shr $0x3,%rax 1d: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 22: 84 c0 test %al,%al 24: 0f 85 e5 02 00 00 jne 0x30f * 2a: 83 3b 00 cmpl $0x0,(%rbx) <-- trapping instruction 2d: 0f 85 62 01 00 00 jne 0x195 33: 4c 8d bc 24 80 00 00 lea 0x80(%rsp),%r15 3a: 00 3b: 4c 89 fb mov %r15,%rbx 3e: 48 rex.W 3f: c1 .byte 0xc1