------------[ cut here ]------------ WARNING: CPU: 1 PID: 3630 at net/ipv4/route.c:1260 kfree_skb include/linux/skbuff.h:1118 [inline] WARNING: CPU: 1 PID: 3630 at net/ipv4/route.c:1260 ip_rt_bug+0x30/0x100 net/ipv4/route.c:1259 Modules linked in: CPU: 1 PID: 3630 Comm: klogd Not tainted 5.15.176-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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:1259 sp : ffff800008017530 x29: ffff800008017530 x28: 1fffe000199ff393 x27: ffff800008017800 x26: dfff800000000000 x25: 1fffe0001dcb1373 x24: dfff800000000000 x23: ffff0000d5a7e200 x22: ffff0000d5a7e230 x21: ffff0000ccff9a00 x20: ffff0000ee589b40 x19: ffff0000ee589b40 x18: 0000000000000302 x17: 0000000000000000 x16: ffff800011b4c240 x15: ffff8000083bd5a4 x14: ffff8000083bd904 x13: ffff80000ffcf4c0 x12: 0000000000000003 x11: 0000000000000303 x10: 0000000000000003 x9 : c3d17b24b094f400 x8 : c3d17b24b094f400 x7 : 0000000000000000 x6 : ffff8000083bb0c8 x5 : ffff0000c8ced050 x4 : 0000000000000000 x3 : ffff8000136b5b20 x2 : 0000000000000002 x1 : ffff800012155a80 x0 : 0000000000000001 Call trace: kfree_skb include/linux/skbuff.h:1118 [inline] ip_rt_bug+0x30/0x100 net/ipv4/route.c:1259 dst_output include/net/dst.h:443 [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+0x68/0x84 net/ipv4/ip_output.c:1601 icmp_push_reply+0x3a4/0x4d4 net/ipv4/icmp.c:396 __icmp_send+0xb74/0x1020 net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1240 [inline] ipv4_link_failure+0x554/0x8d4 net/ipv4/route.c:1247 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+0xf4/0x178 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 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] preempt_schedule_irq+0x88/0x274 kernel/sched/core.c:6776 arm64_preempt_schedule_irq+0x174/0x2c4 arch/arm64/kernel/entry-common.c:260 el1_interrupt+0x40/0x58 arch/arm64/kernel/entry-common.c:463 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522 bytes_is_nonzero mm/kasan/generic.c:85 [inline] memory_is_nonzero mm/kasan/generic.c:102 [inline] memory_is_poisoned_n mm/kasan/generic.c:128 [inline] memory_is_poisoned mm/kasan/generic.c:159 [inline] check_region_inline mm/kasan/generic.c:180 [inline] kasan_check_range+0x78/0x2b4 mm/kasan/generic.c:189 __kasan_check_write+0x44/0x54 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:86 [inline] clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline] clear_ti_thread_flag include/linux/thread_info.h:94 [inline] tracehook_notify_resume include/linux/tracehook.h:182 [inline] do_notify_resume+0x894/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 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: 161659 hardirqs last enabled at (161658): [<ffff8000088d6348>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (161659): [<ffff800011b478f4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (161582): [<ffff8000080309b8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (161595): [<ffff8000081b6fb4>] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 4d574c8b0ff06c97 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3630 at net/ipv4/route.c:1260 kfree_skb include/linux/skbuff.h:1118 [inline] WARNING: CPU: 1 PID: 3630 at net/ipv4/route.c:1260 ip_rt_bug+0x30/0x100 net/ipv4/route.c:1259 Modules linked in: CPU: 1 PID: 3630 Comm: klogd Tainted: G W 5.15.176-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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:1259 sp : ffff800008017530 x29: ffff800008017530 x28: 1fffe000199ff393 x27: ffff800008017800 x26: dfff800000000000 x25: 1fffe0001dcb139b x24: dfff800000000000 x23: ffff0000d5a7e200 x22: ffff0000d5a7e230 x21: ffff0000ccff9a00 x20: ffff0000ee589c80 x19: ffff0000ee589c80 x18: 0000000000000302 x17: 0000000000000000 x16: ffff800011b4c240 x15: 0000000000000001 x14: 00000000083378f4 x13: 00000000652edb45 x12: 0000000000000003 x11: 0000000000000303 x10: 0000000000000003 x9 : c3d17b24b094f400 x8 : c3d17b24b094f400 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000136b5b20 x2 : 0000000000000002 x1 : ffff800012155a80 x0 : 0000000000000001 Call trace: kfree_skb include/linux/skbuff.h:1118 [inline] ip_rt_bug+0x30/0x100 net/ipv4/route.c:1259 dst_output include/net/dst.h:443 [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+0x68/0x84 net/ipv4/ip_output.c:1601 icmp_push_reply+0x3a4/0x4d4 net/ipv4/icmp.c:396 __icmp_send+0xb74/0x1020 net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1240 [inline] ipv4_link_failure+0x554/0x8d4 net/ipv4/route.c:1247 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+0xf4/0x178 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 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] preempt_schedule_irq+0x88/0x274 kernel/sched/core.c:6776 arm64_preempt_schedule_irq+0x174/0x2c4 arch/arm64/kernel/entry-common.c:260 el1_interrupt+0x40/0x58 arch/arm64/kernel/entry-common.c:463 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:470 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:522 bytes_is_nonzero mm/kasan/generic.c:85 [inline] memory_is_nonzero mm/kasan/generic.c:102 [inline] memory_is_poisoned_n mm/kasan/generic.c:128 [inline] memory_is_poisoned mm/kasan/generic.c:159 [inline] check_region_inline mm/kasan/generic.c:180 [inline] kasan_check_range+0x78/0x2b4 mm/kasan/generic.c:189 __kasan_check_write+0x44/0x54 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:86 [inline] clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline] clear_ti_thread_flag include/linux/thread_info.h:94 [inline] tracehook_notify_resume include/linux/tracehook.h:182 [inline] do_notify_resume+0x894/0x32b8 arch/arm64/kernel/signal.c:946 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xfc/0x1f0 arch/arm64/kernel/entry-common.c:609 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: 161711 hardirqs last enabled at (161710): [<ffff8000088d6348>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (161711): [<ffff800011b478f4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (161582): [<ffff8000080309b8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (161595): [<ffff8000081b6fb4>] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (161595): [<ffff8000081b6fb4>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 4d574c8b0ff06c98 ]---