kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 26522 Comm: syz-executor.1 Not tainted 5.2.0-rc3+ #33 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 4d 78 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae909ce8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000018 RCX: 1ffffffff1301e3e RDX: 0000000000000003 RSI: ffffffff85852fb3 RDI: 0000000000000018 RBP: ffff8880ae909d08 R08: ffff8880982c24c0 R09: ffff8880982c2db0 R10: ffff8880982c2d90 R11: ffff8880982c24c0 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000018 R15: 0000607f5147a6a0 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070e07b CR3: 0000000008a6d000 CR4: 00000000001406e0 Call Trace: rt_fibinfo_free_cpus.part.0+0xdb/0x130 net/ipv4/fib_semantics.c:202 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:194 [inline] fib_nh_common_release+0x107/0x280 net/ipv4/fib_semantics.c:215 fib_nh_release net/ipv4/fib_semantics.c:227 [inline] free_fib_info_rcu+0x1f0/0x670 net/ipv4/fib_semantics.c:239 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:lock_acquire+0x1ea/0x3f0 kernel/locking/lockdep.c:4306 Code: 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 c4 01 00 00 48 83 3d 72 07 5b 07 00 0f 84 38 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b RSP: 0018:ffff8880673e7620 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff1164e7e RBX: ffff8880982c24c0 RCX: ffff8880982c2d40 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff8880673e7668 R08: 00000000d22d0c1d R09: ffff8880982c2d88 R10: ffff8880982c2d68 R11: ffff8880982c24c0 R12: ffffffff88ba3580 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 rcu_lock_acquire include/linux/rcupdate.h:208 [inline] rcu_read_lock+0x29/0x70 include/linux/rcupdate.h:593 lock_page_memcg+0x19/0x1d0 mm/memcontrol.c:1975 page_remove_file_rmap mm/rmap.c:1218 [inline] page_remove_rmap+0x53d/0x1090 mm/rmap.c:1303 zap_pte_range mm/memory.c:1093 [inline] zap_pmd_range mm/memory.c:1195 [inline] zap_pud_range mm/memory.c:1224 [inline] zap_p4d_range mm/memory.c:1245 [inline] unmap_page_range+0xd3b/0x22f0 mm/memory.c:1266 unmap_single_vma+0x19d/0x300 mm/memory.c:1311 unmap_vmas+0x135/0x280 mm/memory.c:1343 exit_mmap+0x2ad/0x510 mm/mmap.c:3145 __mmput kernel/fork.c:1059 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1080 exit_mm kernel/exit.c:547 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:864 do_group_exit+0x135/0x370 kernel/exit.c:981 get_signal+0x471/0x24b0 kernel/signal.c:2640 do_signal+0x87/0x1900 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 Code: Bad RIP value. RSP: 002b:00007f3de79d7cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000075bfd0 RCX: 00000000004592c9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bfd0 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bfd4 R13: 00007ffdeb6dccef R14: 00007f3de79d89c0 R15: 000000000075bfd4 Modules linked in: ---[ end trace 0df00299274cfa08 ]--- RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 4d 78 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae909ce8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000018 RCX: 1ffffffff1301e3e RDX: 0000000000000003 RSI: ffffffff85852fb3 RDI: 0000000000000018 RBP: ffff8880ae909d08 R08: ffff8880982c24c0 R09: ffff8880982c2db0 R10: ffff8880982c2d90 R11: ffff8880982c24c0 R12: 0000000000000000 R13: 0000000000000007 R14: 0000000000000018 R15: 0000607f5147a6a0 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045929f CR3: 0000000008a6d000 CR4: 00000000001406e0