Hello, syzbot found the following issue on: HEAD commit: f9f24ca362a4 Add linux-next specific files for 20241031 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=1387c6f7980000 kernel config: https://syzkaller.appspot.com/x/.config?x=328572ed4d152be9 dashboard link: https://syzkaller.appspot.com/bug?extid=b506de56cbbb63148c33 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1387655f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ac5540580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/eb84549dd6b3/disk-f9f24ca3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/beb29bdfa297/vmlinux-f9f24ca3.xz kernel image: https://storage.googleapis.com/syzbot-assets/8881fe3245ad/bzImage-f9f24ca3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b506de56cbbb63148c33@xxxxxxxxxxxxxxxxxxxxxxxxx ============================= [ BUG: Invalid wait context ] 6.12.0-rc5-next-20241031-syzkaller #0 Not tainted ----------------------------- swapper/0/0 is trying to lock: ffff8880261e7a00 (&trie->lock){....}-{3:3}, at: trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 other info that might help us debug this: context-{3:3} 5 locks held by swapper/0/0: #0: ffff888020bb75c8 (&vp_dev->lock){-...}-{3:3}, at: vp_vring_interrupt drivers/virtio/virtio_pci_common.c:80 [inline] #0: ffff888020bb75c8 (&vp_dev->lock){-...}-{3:3}, at: vp_interrupt+0x142/0x200 drivers/virtio/virtio_pci_common.c:113 #1: ffff88814174a120 (&vb->stop_update_lock){-...}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #1: ffff88814174a120 (&vb->stop_update_lock){-...}-{3:3}, at: stats_request+0x6f/0x230 drivers/virtio/virtio_balloon.c:438 #2: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: __queue_work+0x199/0xf50 kernel/workqueue.c:2259 #3: ffff8880b863dd18 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x759/0xf50 #4: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #4: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #4: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2339 [inline] #4: ffffffff8e939f20 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run1+0x1d6/0x520 kernel/trace/bpf_trace.c:2380 stack backtrace: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc5-next-20241031-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <IRQ> __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 trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 bpf_prog_2c29ac5cdc6b1842+0x43/0x47 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2340 [inline] bpf_trace_run1+0x2ca/0x520 kernel/trace/bpf_trace.c:2380 trace_workqueue_activate_work+0x186/0x1f0 include/trace/events/workqueue.h:59 __queue_work+0xc7b/0xf50 kernel/workqueue.c:2338 queue_work_on+0x1c2/0x380 kernel/workqueue.c:2390 queue_work include/linux/workqueue.h:662 [inline] stats_request+0x1a3/0x230 drivers/virtio/virtio_balloon.c:441 vring_interrupt+0x21d/0x380 drivers/virtio/virtio_ring.c:2595 vp_vring_interrupt drivers/virtio/virtio_pci_common.c:82 [inline] vp_interrupt+0x192/0x200 drivers/virtio/virtio_pci_common.c:113 __handle_irq_event_percpu+0x29a/0xa80 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210 handle_fasteoi_irq+0x48a/0xae0 kernel/irq/chip.c:720 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline] handle_irq arch/x86/kernel/irq.c:247 [inline] call_irq_handler arch/x86/kernel/irq.c:259 [inline] __common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:285 common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:278 </IRQ> <TASK> asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5201 Code: c9 50 e8 29 05 0c 00 48 83 c4 08 4c 89 f7 e8 4d 39 00 00 0f 1f 44 00 00 4c 89 f7 e8 a0 45 69 0a e8 4b 9e 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffffff8e607ae8 EFLAGS: 00000282 RAX: 467bb178e56b5700 RBX: ffffffff8e6945c0 RCX: ffffffff9a3d4903 RDX: dffffc0000000000 RSI: ffffffff8c0ad3a0 RDI: ffffffff8c604dc0 RBP: ffffffff8e607b30 R08: ffffffff901d03b7 R09: 1ffffffff203a076 R10: dffffc0000000000 R11: fffffbfff203a077 R12: 1ffff110170c7e74 R13: dffffc0000000000 R14: ffff8880b863e580 R15: ffff8880b863f3a0 context_switch kernel/sched/core.c:5330 [inline] __schedule+0x1857/0x4c30 kernel/sched/core.c:6707 schedule_idle+0x56/0x90 kernel/sched/core.c:6825 do_idle+0x567/0x5c0 kernel/sched/idle.c:353 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423 rest_init+0x2dc/0x300 init/main.c:747 start_kernel+0x47f/0x500 init/main.c:1102 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 </TASK> ---------------- Code disassembly (best guess): 0: c9 leave 1: 50 push %rax 2: e8 29 05 0c 00 call 0xc0530 7: 48 83 c4 08 add $0x8,%rsp b: 4c 89 f7 mov %r14,%rdi e: e8 4d 39 00 00 call 0x3960 13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 18: 4c 89 f7 mov %r14,%rdi 1b: e8 a0 45 69 0a call 0xa6945c0 20: e8 4b 9e 38 00 call 0x389e70 25: fb sti 26: 48 8b 5d c0 mov -0x40(%rbp),%rbx * 2a: 48 8d bb f8 15 00 00 lea 0x15f8(%rbx),%rdi <-- trapping instruction 31: 48 89 f8 mov %rdi,%rax 34: 48 c1 e8 03 shr $0x3,%rax 38: 49 rex.WB 39: be 00 00 00 00 mov $0x0,%esi 3e: 00 fc add %bh,%ah --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
