------------[ cut here ]------------ WARNING: net/ipv4/af_inet.c:162 at inet_sock_destruct+0x554/0x650 net/ipv4/af_inet.c:162, CPU#1: syz.6.813/9649 Modules linked in: CPU: 1 UID: 0 PID: 9649 Comm: syz.6.813 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 43400005 (nZcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : inet_sock_destruct+0x554/0x650 net/ipv4/af_inet.c:162 lr : inet_sock_destruct+0x554/0x650 net/ipv4/af_inet.c:162 sp : ffff80008eaf7c90 x29: ffff80008eaf7ca0 x28: 1fffe000199c5001 x27: ffff0000c350b808 x26: ffff0000cce28008 x25: ffff0000c350b300 x24: 1fffe000186a1672 x23: ffff0000c350b390 x22: dfff800000000000 x21: ffff0000dba04e80 x20: 0000000000000f70 x19: ffff0000c350b58c x18: 1fffe00035bd2e28 x17: 0000000000000007 x16: 0000000100000000 x15: 0000000900000009 x14: 00000000ffff8000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: ffff6000186a16b5 x9 : 0000000000000100 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000008 x3 : ffff800085500f30 x2 : 0000000000000f70 x1 : ffff0000cce28000 x0 : 0000000000000000 Call trace: inet_sock_destruct+0x554/0x650 net/ipv4/af_inet.c:162 (P) udp_destruct_sock+0x28/0x38 net/ipv4/udp.c:1808 __sk_destruct+0x80/0x854 net/core/sock.c:2357 rcu_do_batch kernel/rcu/tree.c:2645 [inline] rcu_core+0x598/0xf04 kernel/rcu/tree.c:2897 rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2914 handle_softirqs+0x2ec/0xd98 kernel/softirq.c:622 __do_softirq+0x14/0x20 kernel/softirq.c:656 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:78 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:83 invoke_softirq kernel/softirq.c:503 [inline] __irq_exit_rcu+0x1ac/0x428 kernel/softirq.c:735 irq_exit_rcu+0x14/0x84 kernel/softirq.c:752 __el1_irq arch/arm64/kernel/entry-common.c:510 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:522 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:527 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:590 preempt_count arch/arm64/include/asm/preempt.h:12 [inline] (P) resched_offsets_ok kernel/sched/core.c:9144 [inline] (P) __might_resched+0xe4/0x4c0 kernel/sched/core.c:9161 (P) __might_sleep+0x84/0xdc kernel/sched/core.c:9126 might_alloc include/linux/sched/mm.h:323 [inline] prepare_alloc_pages+0x174/0x4a4 mm/page_alloc.c:5048 __alloc_frozen_pages_noprof+0x134/0x320 mm/page_alloc.c:5293 alloc_pages_mpol+0x1ec/0x3c0 mm/mempolicy.c:2490 folio_alloc_mpol_noprof+0x4c/0x248 mm/mempolicy.c:2509 shmem_alloc_folio+0xa0/0x150 mm/shmem.c:1907 shmem_alloc_and_add_folio+0x28c/0xed8 mm/shmem.c:1949 shmem_get_folio_gfp+0x4a8/0x1464 mm/shmem.c:2502 shmem_get_folio mm/shmem.c:2608 [inline] shmem_fallocate+0x680/0xa5c mm/shmem.c:3702 vfs_fallocate+0x514/0x650 fs/open.c:338 ksys_fallocate+0x58/0xa4 fs/open.c:362 __do_sys_fallocate fs/open.c:367 [inline] __se_sys_fallocate fs/open.c:365 [inline] __arm64_sys_fallocate+0xa0/0xbc fs/open.c:365 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 16269 hardirqs last enabled at (16268): [] kasan_quarantine_put+0xb4/0x1c4 mm/kasan/quarantine.c:234 hardirqs last disabled at (16269): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (7900): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (7900): [] handle_softirqs+0xc28/0xd98 kernel/softirq.c:650 softirqs last disabled at (16225): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---