------------[ cut here ]------------ WARNING: CPU: 0 PID: 6888 at net/ipv4/route.c:1281 kfree_skb include/linux/skbuff.h:1118 [inline] WARNING: CPU: 0 PID: 6888 at net/ipv4/route.c:1281 ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 Modules linked in: CPU: 0 PID: 6888 Comm: dhcpcd-run-hook Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ip_rt_bug+0x30/0x100 include/linux/skbuff.h:1118 lr : kfree_skb include/linux/skbuff.h:1118 [inline] lr : ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 sp : ffff800008007530 x29: ffff800008007530 x28: 1fffe00018aaca13 x27: ffff800008007800 x26: dfff800000000000 x25: 1fffe0001b855e33 x24: dfff800000000000 x23: ffff0000e04ec700 x22: ffff0000e04ec730 x21: ffff0000c5564e00 x20: ffff0000dc2af140 x19: ffff0000dc2af140 x18: 0000000000000301 x17: 0000000000000000 x16: ffff800011b54788 x15: ffff8000083c0108 x14: ffff8000083c0468 x13: ffff80000ffd04ac x12: 0000000000000003 x11: 0000000000000302 x10: 0000000000000003 x9 : e45b76d37b439100 x8 : e45b76d37b439100 x7 : 0000000000000000 x6 : ffff8000083bdc2c x5 : ffff0000c1edb730 x4 : 0000000000000000 x3 : ffff8000136c92c0 x2 : 0000000000000002 x1 : ffff8000121672c0 x0 : 0000000000000001 Call trace: kfree_skb include/linux/skbuff.h:1118 [inline] ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 dst_output include/net/dst.h:452 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] ip_send_skb+0x134/0x2f8 net/ipv4/ip_output.c:1581 ip_push_pending_frames+0x6c/0x88 net/ipv4/ip_output.c:1601 icmp_push_reply+0x3ac/0x4dc net/ipv4/icmp.c:396 __icmp_send+0xb8c/0x103c net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1261 [inline] ipv4_link_failure+0x558/0x8d8 net/ipv4/route.c:1268 dst_link_failure include/net/dst.h:422 [inline] arp_error_report+0x11c/0x16c net/ipv4/arp.c:295 neigh_invalidate+0x2c0/0x514 net/core/neighbour.c:1001 neigh_timer_handler+0x630/0xe1c net/core/neighbour.c:1088 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x554/0x718 kernel/time/timer.c:1767 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1780 handle_softirqs+0x384/0xdbc kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 irq_exit+0x14/0x88 kernel/softirq.c:665 handle_domain_irq+0x14c/0x1fc kernel/irq/irqdesc.c:711 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:765 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:454 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522 unwind_frame+0x1dc/0x550 arch/arm64/kernel/stacktrace.c:101 walk_stackframe arch/arm64/kernel/stacktrace.c:148 [inline] arch_stack_walk+0x270/0x32c arch/arm64/kernel/stacktrace.c:238 stack_trace_save+0xfc/0x1a0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233 ptlock_alloc mm/memory.c:5556 [inline] ptlock_init include/linux/mm.h:2230 [inline] pgtable_pte_page_ctor include/linux/mm.h:2257 [inline] __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline] pte_alloc_one+0x78/0x258 include/asm-generic/pgalloc.h:85 __pte_alloc+0x84/0x2c4 mm/memory.c:439 copy_pte_range mm/memory.c:1032 [inline] copy_pmd_range mm/memory.c:1167 [inline] copy_pud_range mm/memory.c:1204 [inline] copy_p4d_range mm/memory.c:1228 [inline] copy_page_range+0x279c/0x2e18 mm/memory.c:1301 dup_mmap kernel/fork.c:615 [inline] dup_mm kernel/fork.c:1466 [inline] copy_mm+0xa18/0x10fc kernel/fork.c:1518 copy_process+0x1680/0x3750 kernel/fork.c:2205 kernel_clone+0x1d8/0xa58 kernel/fork.c:2603 __do_sys_clone kernel/fork.c:2720 [inline] __se_sys_clone kernel/fork.c:2688 [inline] __arm64_sys_clone+0x1d8/0x24c kernel/fork.c:2688 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 5631 hardirqs last enabled at (5630): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (5631): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (5520): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (5575): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (5575): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (5575): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (5575): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace d2d88257e27a7810 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6888 at net/ipv4/route.c:1281 kfree_skb include/linux/skbuff.h:1118 [inline] WARNING: CPU: 0 PID: 6888 at net/ipv4/route.c:1281 ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 Modules linked in: CPU: 0 PID: 6888 Comm: dhcpcd-run-hook Tainted: G W 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ip_rt_bug+0x30/0x100 include/linux/skbuff.h:1118 lr : kfree_skb include/linux/skbuff.h:1118 [inline] lr : ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 sp : ffff800008007530 x29: ffff800008007530 x28: 1fffe00018aaca13 x27: ffff800008007800 x26: dfff800000000000 x25: 1fffe0001b855e83 x24: dfff800000000000 x23: ffff0000e04ec700 x22: ffff0000e04ec730 x21: ffff0000c5564e00 x20: ffff0000dc2af3c0 x19: ffff0000dc2af3c0 x18: 0000000000000301 x17: 0000000000000000 x16: ffff800011b54788 x15: 0000000000000001 x14: 000000000833a344 x13: 00000000006f3241 x12: 0000000000000003 x11: 0000000000000302 x10: 0000000000000003 x9 : e45b76d37b439100 x8 : e45b76d37b439100 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000136c92c0 x2 : 0000000000000002 x1 : ffff8000121672c0 x0 : 0000000000000001 Call trace: kfree_skb include/linux/skbuff.h:1118 [inline] ip_rt_bug+0x30/0x100 net/ipv4/route.c:1280 dst_output include/net/dst.h:452 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] ip_send_skb+0x134/0x2f8 net/ipv4/ip_output.c:1581 ip_push_pending_frames+0x6c/0x88 net/ipv4/ip_output.c:1601 icmp_push_reply+0x3ac/0x4dc net/ipv4/icmp.c:396 __icmp_send+0xb8c/0x103c net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1261 [inline] ipv4_link_failure+0x558/0x8d8 net/ipv4/route.c:1268 dst_link_failure include/net/dst.h:422 [inline] arp_error_report+0x11c/0x16c net/ipv4/arp.c:295 neigh_invalidate+0x2c0/0x514 net/core/neighbour.c:1001 neigh_timer_handler+0x630/0xe1c net/core/neighbour.c:1088 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x554/0x718 kernel/time/timer.c:1767 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1780 handle_softirqs+0x384/0xdbc kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 irq_exit+0x14/0x88 kernel/softirq.c:665 handle_domain_irq+0x14c/0x1fc kernel/irq/irqdesc.c:711 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:765 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:454 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522 unwind_frame+0x1dc/0x550 arch/arm64/kernel/stacktrace.c:101 walk_stackframe arch/arm64/kernel/stacktrace.c:148 [inline] arch_stack_walk+0x270/0x32c arch/arm64/kernel/stacktrace.c:238 stack_trace_save+0xfc/0x1a0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233 ptlock_alloc mm/memory.c:5556 [inline] ptlock_init include/linux/mm.h:2230 [inline] pgtable_pte_page_ctor include/linux/mm.h:2257 [inline] __pte_alloc_one include/asm-generic/pgalloc.h:66 [inline] pte_alloc_one+0x78/0x258 include/asm-generic/pgalloc.h:85 __pte_alloc+0x84/0x2c4 mm/memory.c:439 copy_pte_range mm/memory.c:1032 [inline] copy_pmd_range mm/memory.c:1167 [inline] copy_pud_range mm/memory.c:1204 [inline] copy_p4d_range mm/memory.c:1228 [inline] copy_page_range+0x279c/0x2e18 mm/memory.c:1301 dup_mmap kernel/fork.c:615 [inline] dup_mm kernel/fork.c:1466 [inline] copy_mm+0xa18/0x10fc kernel/fork.c:1518 copy_process+0x1680/0x3750 kernel/fork.c:2205 kernel_clone+0x1d8/0xa58 kernel/fork.c:2603 __do_sys_clone kernel/fork.c:2720 [inline] __se_sys_clone kernel/fork.c:2688 [inline] __arm64_sys_clone+0x1d8/0x24c kernel/fork.c:2688 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 5695 hardirqs last enabled at (5694): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (5695): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (5520): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (5575): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (5575): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (5575): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (5575): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace d2d88257e27a7811 ]---