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: 3851 Comm: syz-executor.2 Not tainted 5.2.0-rc5+ #57 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 0d 91 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:ffff8880ae809cf8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000050 RCX: 1ffffffff1301866 RDX: 000000000000000a RSI: ffffffff85853023 RDI: 0000000000000050 RBP: ffff8880ae809d18 R08: ffff888098b42180 R09: ffff888098b42ae8 R10: ffff888098b42ac8 R11: ffff888098b42180 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000000050 R15: 0000607f51442c00 FS: 000055555582c940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555835978 CR3: 00000000a9b01000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> rt_fibinfo_free_cpus.part.0+0xdb/0x130 net/ipv4/fib_semantics.c:198 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:190 [inline] fib_nh_common_release+0x107/0x280 net/ipv4/fib_semantics.c:211 fib_nh_release net/ipv4/fib_semantics.c:223 [inline] free_fib_info_rcu+0x117/0x210 net/ipv4/fib_semantics.c:232 __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:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 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 </IRQ> RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:68 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x50 kernel/kcov.c:102 Code: 48 c7 05 1e 5e f5 08 00 00 00 00 e9 a4 e9 ff ff 90 90 90 90 90 90 90 90 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 c0 fd 01 00 <65> 8b 15 40 3c 91 7e 81 e2 00 01 1f 00 75 2b 8b 90 e0 12 00 00 83 RSP: 0018:ffff8880a956f900 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffff888098b42180 RBX: ffff88804e212330 RCX: ffffffff81ef6521 RDX: 1ffff1101082ce33 RSI: ffffffff81ef2aec RDI: ffff88804e212330 RBP: ffff8880a956f900 R08: ffff888098b42180 R09: ffffed10152adf43 R10: ffffed10152adf42 R11: 0000000000000003 R12: ffff88805a5a3c24 R13: ffff88805a5a3c08 R14: 0000000000000001 R15: ffff88805a5a3c08 ext4_es_free_extent+0x1c/0x5a0 fs/ext4/extents_status.c:474 __es_remove_extent+0x4c1/0x870 fs/ext4/extents_status.c:1037 ext4_es_remove_extent+0xcd/0x380 fs/ext4/extents_status.c:1088 ext4_ext_truncate+0x164/0x200 fs/ext4/extents.c:4544 ext4_truncate+0xe00/0x1430 fs/ext4/inode.c:4530 ext4_evict_inode+0x9d3/0x18e0 fs/ext4/inode.c:289 evict+0x306/0x680 fs/inode.c:571 iput_final fs/inode.c:1560 [inline] iput+0x52b/0x8d0 fs/inode.c:1586 dentry_unlink_inode+0x2d9/0x400 fs/dcache.c:374 d_delete+0x189/0x1c0 fs/dcache.c:2384 vfs_rmdir fs/namei.c:3891 [inline] vfs_rmdir+0x389/0x460 fs/namei.c:3857 do_rmdir+0x39e/0x420 fs/namei.c:3939 __do_sys_rmdir fs/namei.c:3957 [inline] __se_sys_rmdir fs/namei.c:3955 [inline] __x64_sys_rmdir+0x36/0x40 fs/namei.c:3955 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459037 Code: 00 66 90 b8 57 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe347deaa8 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000459037 RDX: 0000000000000000 RSI: 0000000000714698 RDI: 00007ffe347dfbe0 RBP: 0000000000000484 R08: 0000000000000000 R09: 0000000000000001 R10: 000000000000000a R11: 0000000000000207 R12: 00007ffe347dfbe0 R13: 000055555582d940 R14: 0000000000000000 R15: 00007ffe347dfbe0 Modules linked in: ---[ end trace 0a4fd6340a690cae ]--- 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 0d 91 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:ffff8880ae809cf8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000050 RCX: 1ffffffff1301866 RDX: 000000000000000a RSI: ffffffff85853023 RDI: 0000000000000050 RBP: ffff8880ae809d18 R08: ffff888098b42180 R09: ffff888098b42ae8 R10: ffff888098b42ac8 R11: ffff888098b42180 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000000050 R15: 0000607f51442c00 FS: 000055555582c940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555835978 CR3: 00000000a9b01000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400