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: 0 PID: 972 Comm: syz-executor.1 Not tainted 5.2.0-rc3+ #20 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 bd 77 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:ffff8880ae809ce8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000008dc0 RCX: 1ffffffff1301cbe RDX: 00000000000011b8 RSI: ffffffff85853043 RDI: 0000000000008dc0 RBP: ffff8880ae809d08 R08: ffff888065542380 R09: ffff888065542c48 R10: ffff888065542c28 R11: ffff888065542380 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000008dc0 R15: 0000607f514768b8 FS: 00007fa677ffc700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3183b000 CR3: 00000000a7e6b000 CR4: 00000000001406f0 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:compound_head include/linux/page-flags.h:174 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:459 [inline] RIP: 0010:zap_pte_range mm/memory.c:1083 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1195 [inline] RIP: 0010:zap_pud_range mm/memory.c:1224 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1245 [inline] RIP: 0010:unmap_page_range+0xa59/0x22f0 mm/memory.c:1266 Code: 4d 85 e4 0f 84 87 04 00 00 e8 d3 6b d6 ff 4d 8d 74 24 08 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 0f 85 77 15 00 00 49 8b 44 24 08 <31> ff 4d 89 e5 48 89 c6 48 89 85 c0 fe ff ff 83 e6 01 48 89 b5 e0 RSP: 0018:ffff8880a8edf720 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dead000000000100 RBX: 00007fa679fbd000 RCX: ffff8880a8edf9f0 RDX: 0000000000000000 RSI: ffffffff819a3c2d RDI: ffff8880a8edfa08 RBP: ffff8880a8edf880 R08: ffff888065542380 R09: fffff940004697b7 R10: fffff940004697b6 R11: ffffea000234bdb3 R12: ffffea000234bdc0 R13: ffff8880a8edfa10 R14: ffffea000234bdc8 R15: dffffc0000000000 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: 0033:0x459279 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa677ffbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffffa RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000020000b00 RSI: 00000000000089a1 RDI: 0000000000000008 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa677ffc6d4 R13: 00000000004c4b41 R14: 00000000004d8988 R15: 00000000ffffffff Modules linked in: ---[ end trace 9942ea16a5f8b904 ]--- 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 bd 77 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:ffff8880ae809ce8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000008dc0 RCX: 1ffffffff1301cbe RDX: 00000000000011b8 RSI: ffffffff85853043 RDI: 0000000000008dc0 RBP: ffff8880ae809d08 R08: ffff888065542380 R09: ffff888065542c48 R10: ffff888065542c28 R11: ffff888065542380 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000008dc0 R15: 0000607f514768b8 FS: 00007fa677ffc700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3183b000 CR3: 0000000008a6d000 CR4: 00000000001406f0