[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.908707] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.745677] random: sshd: uninitialized urandom read (32 bytes read) [ 21.132199] random: sshd: uninitialized urandom read (32 bytes read) [ 21.685879] random: sshd: uninitialized urandom read (32 bytes read) [ 21.821960] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. [ 27.732950] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program [ 27.833076] IPVS: Creating netns size=2536 id=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.854356] IPVS: Creating netns size=2536 id=2 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.886770] IPVS: Creating netns size=2536 id=3 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.920092] IPVS: Creating netns size=2536 id=4 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.954154] IPVS: Creating netns size=2536 id=5 [ 27.969168] IPVS: Creating netns size=2536 id=6 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.007131] IPVS: Creating netns size=2536 id=7 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 28.048933] IPVS: Creating netns size=2536 id=8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.272374] BUG: unable to handle kernel paging request at ffffeafff90a8020 [ 31.279924] IP: [] page_remove_rmap+0x37/0x6d0 [ 31.286717] PGD 0 [ 31.288682] [ 31.290328] Oops: 0000 [#1] PREEMPT SMP KASAN [ 31.294819] Dumping ftrace buffer: [ 31.298348] (ftrace buffer empty) [ 31.302050] Modules linked in: [ 31.305411] CPU: 0 PID: 11270 Comm: syz-executor463 Not tainted 4.9.120-gf85543b #24 [ 31.313337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.322683] task: ffff8801c7290000 task.stack: ffff8801c11f8000 [ 31.328730] RIP: 0010:[] [] page_remove_rmap+0x37/0x6d0 [ 31.337436] RSP: 0018:ffff8801c11ff6c0 EFLAGS: 00010246 [ 31.342877] RAX: dffffc0000000000 RBX: ffffeafff90a8000 RCX: 0000000000000000 [ 31.350156] RDX: 1ffffd5fff215004 RSI: ffffffff814f5128 RDI: ffffeafff90a8000 [ 31.357417] RBP: ffff8801c11ff6e8 R08: 0000000000036320 R09: 0000000000000001 [ 31.364685] R10: ffff8801c7290000 R11: 0000000000000001 R12: ffff8801c11ff980 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.371971] R13: ffffeafff90a8020 R14: ffffeafff90a8000 R15: 0000000000000001 [ 31.379238] FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 31.387510] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.393409] CR2: ffffeafff90a8020 CR3: 00000001bcdd0000 CR4: 00000000001606f0 [ 31.400677] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.407946] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.415210] Stack: executing program executing program [ 31.417349] ffffeafff90a8020 ffff8801c11ff980 ffff8801bf16d800 ffffeafff90a8000 [ 31.425453] ffff8801bb386058 ffff8801c11ff740 ffffffff8154bfcf ffff8801c11ff990 [ 31.433513] ffff8801c11ff988 ffff8801c11ffa00 00003ffe42a001e0 00000001bf16d000 [ 31.441584] Call Trace: [ 31.444173] [] zap_huge_pmd+0x16f/0x860 [ 31.449786] [] unmap_page_range+0x12ad/0x1730 [ 31.455920] [] ? vm_normal_page_pmd+0x2f0/0x2f0 [ 31.462221] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 31.469132] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 31.475953] [] unmap_single_vma+0x101/0x260 [ 31.481908] [] unmap_vmas+0x102/0x1d0 [ 31.487360] [] exit_mmap+0x214/0x3f0 [ 31.492706] [] ? SyS_munmap+0xa0/0xa0 [ 31.498138] [] ? up_write+0x1a/0x60 [ 31.503396] [] mmput+0xf3/0x2d0 [ 31.508318] [] do_exit+0x906/0x27b0 [ 31.513578] [] ? debug_check_no_locks_freed+0x210/0x210 [ 31.520574] [] ? get_futex_key+0x1090/0x1090 [ 31.526617] [] ? putname+0xdb/0x110 [ 31.531876] [] ? release_task.part.19+0x1210/0x1210 [ 31.538598] [] ? kmem_cache_free+0x294/0x310 [ 31.544660] [] ? recalc_sigpending+0x72/0x90 [ 31.550701] [] do_group_exit+0x111/0x340 [ 31.556398] [] get_signal+0x4cf/0x1450 [ 31.561932] [] ? strncpy_from_user+0x20d/0x2d0 [ 31.568170] [] do_signal+0x87/0x19f0 [ 31.573521] [] ? user_path_at_empty+0x5a/0x70 [ 31.579661] [] ? do_utimes+0x1b8/0x2c0 [ 31.585186] [] ? setup_sigcontext+0x7d0/0x7d0 [ 31.591314] [] ? utimes_common.isra.1+0x5e0/0x5e0 [ 31.597809] [] ? __might_fault+0x114/0x1d0 [ 31.603682] [] ? SyS_futimesat+0x148/0x1b0 [ 31.609579] [] ? do_futex+0x17c0/0x17c0 [ 31.615200] [] ? __do_page_fault+0x183/0xd50 [ 31.621257] [] ? exit_to_usermode_loop+0xac/0x120 [ 31.627734] [] exit_to_usermode_loop+0xe1/0x120 [ 31.634035] [] do_syscall_64+0x364/0x490 [ 31.639734] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 31.646645] Code: 55 41 54 53 48 89 fb e8 c8 b6 e6 ff 4c 8d 6b 20 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 b8 05 00 00 <4c> 8b 73 20 49 89 dc 41 f6 c6 01 0f 85 4b 03 00 00 e8 93 b6 e6 [ 31.674225] RIP [] page_remove_rmap+0x37/0x6d0 [ 31.680583] RSP [ 31.684188] CR2: ffffeafff90a8020 [ 31.687640] ---[ end trace 6cc24dc257df22cc ]--- [ 31.687650] BUG: unable to handle kernel paging request at ffffeafff9090020 [ 31.687659] IP: [] page_remove_rmap+0x37/0x6d0 [ 31.687664] PGD 0 [ 31.687664] [ 31.687669] Oops: 0000 [#2] PREEMPT SMP KASAN [ 31.687675] Dumping ftrace buffer: [ 31.687678] (ftrace buffer empty) [ 31.687682] Modules linked in: [ 31.687692] CPU: 1 PID: 11394 Comm: syz-executor463 Tainted: G D 4.9.120-gf85543b #24 [ 31.687696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.687700] task: ffff8801b91f4800 task.stack: ffff8801b91f8000 [ 31.687710] RIP: 0010:[] [] page_remove_rmap+0x37/0x6d0 [ 31.687714] RSP: 0018:ffff8801b91ff6c0 EFLAGS: 00010246 [ 31.687718] RAX: dffffc0000000000 RBX: ffffeafff9090000 RCX: 0000000000000000 [ 31.687723] RDX: 1ffffd5fff212004 RSI: ffffffff814f5128 RDI: ffffeafff9090000 [ 31.687727] RBP: ffff8801b91ff6e8 R08: 0000000000000001 R09: 0000000000000000 [ 31.687731] R10: ffff8801b91f4800 R11: 0000000000000000 R12: ffff8801b91ff980 [ 31.687735] R13: ffffeafff9090020 R14: ffffeafff9090000 R15: 0000000000000001 [ 31.687741] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 31.687745] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.687750] CR2: ffffeafff9090020 CR3: 00000001bb103000 CR4: 00000000001606f0 [ 31.687757] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.687761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.687762] Stack: [ 31.687773] ffffeafff9090020 ffff8801b91ff980 ffff8801c534a800 ffffeafff9090000 [ 31.687783] ffff8801cd854630 ffff8801b91ff740 ffffffff8154bfcf ffff8801b91ff990 [ 31.687792] ffff8801b91ff988 ffff8801b91ffa00 00003ffe424001e0 00000001c534a000 [ 31.687794] Call Trace: [ 31.687803] [] zap_huge_pmd+0x16f/0x860 [ 31.687811] [] unmap_page_range+0x12ad/0x1730 [ 31.687820] [] ? vm_normal_page_pmd+0x2f0/0x2f0 [ 31.687830] [] ? debug_check_no_obj_freed+0x164/0x930 [ 31.687838] [] unmap_single_vma+0x101/0x260 [ 31.687845] [] unmap_vmas+0x102/0x1d0 [ 31.687851] [] exit_mmap+0x214/0x3f0 [ 31.687858] [] ? SyS_munmap+0xa0/0xa0 [ 31.687865] [] mmput+0xf3/0x2d0 [ 31.687873] [] do_exit+0x906/0x27b0 [ 31.687881] [] ? debug_check_no_locks_freed+0x210/0x210 [ 31.687889] [] ? get_futex_key+0x1090/0x1090 [ 31.687895] [] ? change_protection+0xf0/0x1280 [ 31.687904] [] ? release_task.part.19+0x1210/0x1210 [ 31.687911] [] ? __dequeue_signal+0x79/0x520 [ 31.687919] [] ? recalc_sigpending_tsk+0xf9/0x150 [ 31.687926] [] ? recalc_sigpending+0x72/0x90 [ 31.687948] [] ? dequeue_signal+0xc4/0x4b0 [ 31.687970] [] ? kernel_sigaction+0x230/0x230 [ 31.687984] [] do_group_exit+0x111/0x340 [ 31.687992] [] get_signal+0x4cf/0x1450 [ 31.688015] [] ? mprotect_fixup+0x437/0x930 [ 31.688037] [] do_signal+0x87/0x19f0 [ 31.688063] [] ? setup_sigcontext+0x7d0/0x7d0 [ 31.688069] [] ? vmacache_find+0x57/0x290 [ 31.688076] [] ? do_mprotect_pkey+0x70c/0x890 [ 31.688083] [] ? do_futex+0x17c0/0x17c0 [ 31.688090] [] ? mprotect_fixup+0x930/0x930 [ 31.688098] [] ? finish_task_switch+0x1c1/0x640 [ 31.688105] [] ? finish_task_switch+0x1ed/0x640 [ 31.688113] [] exit_to_usermode_loop+0xe1/0x120 [ 31.688119] [] do_syscall_64+0x364/0x490 [ 31.688127] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 31.688256] Code: 55 41 54 53 48 89 fb e8 c8 b6 e6 ff 4c 8d 6b 20 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 b8 05 00 00 <4c> 8b 73 20 49 89 dc 41 f6 c6 01 0f 85 4b 03 00 00 e8 93 b6 e6 [ 31.688264] RIP [] page_remove_rmap+0x37/0x6d0 [ 31.688266] RSP [ 31.688268] CR2: ffffeafff9090020 [ 31.688273] ---[ end trace 6cc24dc257df22cd ]--- [ 31.688292] Kernel panic - not syncing: Fatal exception [ 32.853687] Shutting down cpus with NMI [ 32.858015] Dumping ftrace buffer: [ 32.861534] (ftrace buffer empty) [ 32.865221] Kernel Offset: disabled [ 32.868821] Rebooting in 86400 seconds..