------------[ cut here ]------------ WARNING: CPU: 0 PID: 23490 at net/core/stream.c:205 sk_stream_kill_queues+0x2ee/0x3d0 net/core/stream.c:205 Modules linked in: CPU: 0 PID: 23490 Comm: syz-executor.0 Not tainted 5.15.0-next-20211106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sk_stream_kill_queues+0x2ee/0x3d0 net/core/stream.c:205 Code: 5e 41 5f e9 f4 c2 46 fa e8 ef c2 46 fa 89 ee 48 89 df e8 95 9a fb ff e9 64 ff ff ff e8 db c2 46 fa 0f 0b eb 9b e8 d2 c2 46 fa <0f> 0b eb c7 e8 c9 c2 46 fa 0f 0b e9 65 fe ff ff e8 6d 83 8d fa e9 RSP: 0018:ffffc90000007c28 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000fff RCX: 0000000000000100 RDX: ffff888034768000 RSI: ffffffff8731087e RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff87310845 R11: 0000000000000000 R12: ffff888076861a18 R13: ffff8880768619a8 R14: ffff888076861828 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 000000003f1c0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inet_csk_destroy_sock+0x1a5/0x440 net/ipv4/inet_connection_sock.c:1012 tcp_done+0x233/0x330 net/ipv4/tcp.c:4416 tcp_write_err net/ipv4/tcp_timer.c:74 [inline] tcp_probe_timer net/ipv4/tcp_timer.c:395 [inline] tcp_write_timer_handler+0x447/0xbc0 net/ipv4/tcp_timer.c:626 tcp_write_timer+0xa2/0x2b0 net/ipv4/tcp_timer.c:642 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194 Code: 74 24 10 e8 9a 72 0a f8 48 89 ef e8 e2 e8 0a f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 e3 b1 fd f7 65 8b 05 dc 06 b0 76 85 c0 74 0a 5b 5d c3 e8 e0 a7 RSP: 0018:ffffc90004317798 EFLAGS: 00000206 RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1b22009 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff906f4cf0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817e1148 R11: 0000000000000000 R12: 1ffffffff20de99d R13: 0000000000000000 R14: dead000000000100 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:1002 [inline] debug_check_no_obj_freed+0x20c/0x420 lib/debugobjects.c:1023 free_pages_prepare mm/page_alloc.c:1343 [inline] free_pcp_prepare+0x2ae/0x870 mm/page_alloc.c:1389 free_unref_page_prepare mm/page_alloc.c:3309 [inline] free_unref_page_list+0x1a9/0xfa0 mm/page_alloc.c:3425 release_pages+0x3f4/0x1480 mm/swap.c:979 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:242 [inline] tlb_flush_mmu mm/mmu_gather.c:249 [inline] tlb_finish_mmu+0x165/0x8c0 mm/mmu_gather.c:340 exit_mmap+0x1ea/0x630 mm/mmap.c:3173 __mmput+0x122/0x4b0 kernel/fork.c:1164 mmput+0x56/0x60 kernel/fork.c:1185 exit_mm kernel/exit.c:507 [inline] do_exit+0xb27/0x2b40 kernel/exit.c:819 do_group_exit+0x125/0x310 kernel/exit.c:929 get_signal+0x47d/0x2220 kernel/signal.c:2830 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f42288ecae9 Code: Unable to access opcode bytes at RIP 0x7f42288ecabf. RSP: 002b:00007f4225e62218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f42289fff68 RCX: 00007f42288ecae9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f42289fff68 RBP: 00007f42289fff60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f42289fff6c R13: 00007ffc89fc8c5f R14: 00007f4225e62300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 24 10 and $0x10,%al 2: e8 9a 72 0a f8 callq 0xf80a72a1 7: 48 89 ef mov %rbp,%rdi a: e8 e2 e8 0a f8 callq 0xf80ae8f1 f: 81 e3 00 02 00 00 and $0x200,%ebx 15: 75 25 jne 0x3c 17: 9c pushfq 18: 58 pop %rax 19: f6 c4 02 test $0x2,%ah 1c: 75 2d jne 0x4b 1e: 48 85 db test %rbx,%rbx 21: 74 01 je 0x24 23: fb sti 24: bf 01 00 00 00 mov $0x1,%edi * 29: e8 e3 b1 fd f7 callq 0xf7fdb211 <-- trapping instruction 2e: 65 8b 05 dc 06 b0 76 mov %gs:0x76b006dc(%rip),%eax # 0x76b00711 35: 85 c0 test %eax,%eax 37: 74 0a je 0x43 39: 5b pop %rbx 3a: 5d pop %rbp 3b: c3 retq 3c: e8 .byte 0xe8 3d: e0 a7 loopne 0xffffffe6