Warning: Permanently added '10.128.0.253' (ECDSA) to the list of known hosts. [ **] A start job is running for dev-ttyS0.device (22s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (22s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (23s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (23s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (24s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (25s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (25s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (26s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (27s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (27s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (28s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (28s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (29s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (30s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (30s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (31s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (32s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (32s / 1min 30s)[ 38.989010][ T22] audit: type=1400 audit(1607950777.916:8): avc: denied { execmem } for pid=357 comm="syz-executor431" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 39.009864][ T357] ------------[ cut here ]------------ [ 39.015372][ T357] trying to isolate tail page [ 39.015426][ T357] WARNING: CPU: 0 PID: 357 at mm/vmscan.c:1801 isolate_lru_page+0x570/0x590 [ 39.028752][ T357] Kernel panic - not syncing: panic_on_warn set ... [ 39.035336][ T357] CPU: 0 PID: 357 Comm: syz-executor431 Not tainted 5.4.83-syzkaller-00108-g35d8dcbb1c64 #0 [ 39.045383][ T357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.055418][ T357] Call Trace: [ 39.058729][ T357] dump_stack+0x1dd/0x24e [ 39.063058][ T357] ? devkmsg_release+0x11c/0x11c [ 39.068000][ T357] ? show_regs_print_info+0x12/0x12 [ 39.073176][ T357] ? isolate_lru_page+0x500/0x590 [ 39.078185][ T357] ? isolate_lru_page+0x500/0x590 [ 39.083188][ T357] panic+0x285/0x750 [ 39.087052][ T357] ? __check_object_size+0x2e5/0x3b0 [ 39.092327][ T357] ? __warn+0xfa/0x200 [ 39.096377][ T357] ? nmi_panic+0x90/0x90 [ 39.100681][ T357] ? isolate_lru_page+0x570/0x590 [ 39.105677][ T357] ? is_valid_bugaddr+0xa0/0x150 [ 39.110590][ T357] ? ist_end_non_atomic+0x10/0x10 [ 39.115590][ T357] ? isolate_lru_page+0x570/0x590 [ 39.120585][ T357] __warn+0x1fd/0x200 [ 39.124540][ T357] ? isolate_lru_page+0x570/0x590 [ 39.129539][ T357] report_bug+0x390/0x4d0 [ 39.133854][ T357] ? isolate_lru_page+0x570/0x590 [ 39.138848][ T357] do_invalid_op+0x6e/0x110 [ 39.143350][ T357] invalid_op+0x1e/0x30 [ 39.147480][ T357] RIP: 0010:isolate_lru_page+0x570/0x590 [ 39.153099][ T357] Code: ff 48 ff cd 48 89 eb e9 04 fd ff ff 48 ff cb 48 89 dd e9 5f fd ff ff e8 ae 5d e0 ff 48 c7 c7 09 b2 1c 85 31 c0 e8 80 0f b8 ff <0f> 0b 43 80 3c 2e 00 0f 85 e3 fa ff ff e9 e6 fa ff ff 0f 1f 40 00 [ 39.172690][ T357] RSP: 0018:ffff8881e8fc7778 EFLAGS: 00010246 [ 39.181256][ T357] RAX: bf8bbd8944e73c00 RBX: 0000000000000001 RCX: ffff8881e9bb3e00 [ 39.189214][ T357] RDX: 0000000000000000 RSI: 00000000000002c0 RDI: 0000000000000001 [ 39.197163][ T357] RBP: ffff8881e8fc78d8 R08: ffffffff814e320f R09: fffffbfff0bec005 [ 39.205119][ T357] R10: fffffbfff0bec005 R11: 0000000000000000 R12: ffffea0007a3c1c0 [ 39.213180][ T357] R13: dffffc0000000000 R14: 1ffffd4000f47839 R15: ffffea0007a3c1c8 [ 39.213196][ T357] ? vprintk_emit+0x18f/0x500 [ 39.213216][ T357] ? isolate_lru_page+0x570/0x590 [ 39.230841][ T357] ? __page_mapcount+0xc6/0x180 [ 39.235690][ T357] madvise_cold_or_pageout_pte_range+0x73b/0xa50 [ 39.241996][ T357] ? swapin_walk_pmd_entry+0x370/0x370 [ 39.247431][ T357] ? __kasan_slab_free+0x1f2/0x230 [ 39.252525][ T357] __walk_page_range+0x6dc/0xa30 [ 39.257448][ T357] walk_page_range+0x286/0x570 [ 39.262203][ T357] ? page_mapped_in_vma+0x2d0/0x2d0 [ 39.267376][ T357] __se_sys_madvise+0x14a6/0x2060 [ 39.272379][ T357] ? __x64_sys_madvise+0x80/0x80 [ 39.277297][ T357] ? move_vma+0x710/0x8a0 [ 39.281600][ T357] ? arch_get_unmapped_area+0x790/0x790 [ 39.287121][ T357] ? __se_sys_mremap+0x6cd/0x1130 [ 39.292121][ T357] ? __x64_sys_mremap+0xc0/0xc0 [ 39.296960][ T357] ? check_preemption_disabled+0x15a/0x330 [ 39.302750][ T357] ? __fpregs_load_activate+0x2d3/0x390 [ 39.308293][ T357] do_syscall_64+0xcb/0x150 [ 39.312780][ T357] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.318658][ T357] RIP: 0033:0x43ff59 [ 39.322529][ T357] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 bb 46 00 00 c3 66 2e 0f 1f 84 00 00 00 00 [ 39.342242][ T357] RSP: 002b:00007fff07b890a8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c [ 39.350628][ T357] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff59 [ 39.358697][ T357] RDX: 0000000000000015 RSI: 0000000000600003 RDI: 0000000020000000 [ 39.366964][ T357] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 39.374921][ T357] R10: 0000000020006000 R11: 0000000000000246 R12: 0000000000401800 [ 39.382882][ T357] R13: 0000000000401890 R14: 0000000000000000 R15: 0000000000000000 [ 39.391331][ T357] Kernel Offset: disabled [ 39.395658][ T357] Rebooting in 86400 seconds..