Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ 25.886540][ T22] audit: type=1400 audit(1607611370.196:8): avc: denied { execmem } for pid=360 comm="syz-executor961" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 25.906640][ T360] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 25.925269][ T360] ext4 filesystem being mounted at /root/file0 supports timestamps until 2038 (0x7fffffff) [ 25.938009][ T360] ------------[ cut here ]------------ [ 25.944013][ T360] WARNING: CPU: 0 PID: 360 at fs/ext4/xattr.c:1657 ext4_xattr_set_entry+0x3433/0x3b60 [ 25.954245][ T360] Kernel panic - not syncing: panic_on_warn set ... [ 25.961362][ T360] CPU: 0 PID: 360 Comm: syz-executor961 Not tainted 5.4.82-syzkaller-00042-gd7ec680881a1 #0 [ 25.974001][ T360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.984521][ T360] Call Trace: [ 25.988015][ T360] dump_stack+0x1dd/0x24e [ 25.992882][ T360] ? devkmsg_release+0x11c/0x11c [ 25.997812][ T360] ? show_regs_print_info+0x12/0x12 [ 26.003183][ T360] ? vprintk_store+0x690/0x690 [ 26.008280][ T360] ? check_preemption_disabled+0x9e/0x330 [ 26.014329][ T360] ? ext4_xattr_set_entry+0x3360/0x3b60 [ 26.021308][ T360] ? ext4_xattr_set_entry+0x3360/0x3b60 [ 26.027354][ T360] panic+0x285/0x750 [ 26.031250][ T360] ? __warn+0xfa/0x200 [ 26.035327][ T360] ? nmi_panic+0x90/0x90 [ 26.039552][ T360] ? devkmsg_release+0x11c/0x11c [ 26.044478][ T360] ? is_valid_bugaddr+0xa0/0x150 [ 26.049645][ T360] ? arch_stack_walk+0xf8/0x140 [ 26.054928][ T360] ? ext4_xattr_set_entry+0x3433/0x3b60 [ 26.060642][ T360] __warn+0x1fd/0x200 [ 26.065353][ T360] ? ext4_xattr_set_entry+0x3433/0x3b60 [ 26.071103][ T360] report_bug+0x390/0x4d0 [ 26.075429][ T360] ? ext4_xattr_set_entry+0x3433/0x3b60 [ 26.081094][ T360] do_invalid_op+0x6e/0x110 [ 26.086057][ T360] invalid_op+0x1e/0x30 [ 26.090203][ T360] RIP: 0010:ext4_xattr_set_entry+0x3433/0x3b60 [ 26.096339][ T360] Code: bf 00 00 00 00 00 fc ff df e9 7d fd ff ff 45 89 fd e8 01 0b 92 ff 49 bf 00 00 00 00 00 fc ff df e9 66 fd ff ff e8 ed 0a 92 ff <0f> 0b e9 b0 d3 ff ff 48 8b 7c 24 08 4c 89 ee e8 89 b8 de ff 49 8d [ 26.118254][ T360] RSP: 0018:ffff8881e8d8f200 EFLAGS: 00010293 [ 26.125470][ T360] RAX: ffffffff81d2b4d3 RBX: 1ffff1103d1b1efa RCX: ffff8881e8d2ec80 [ 26.133814][ T360] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.141889][ T360] RBP: ffff8881e8d8f490 R08: ffffffff81d2887c R09: 000000000000000e [ 26.150202][ T360] R10: ffffed103ee06545 R11: 0000000000000000 R12: ffff8881e8d30820 [ 26.158636][ T360] R13: 0000000000000000 R14: ffff8881e8d8f7d0 R15: dffffc0000000000 [ 26.167123][ T360] ? ext4_xattr_set_entry+0x7dc/0x3b60 [ 26.172752][ T360] ? ext4_xattr_set_entry+0x3433/0x3b60 [ 26.178429][ T360] ? ext4_xattr_ibody_inline_set+0x290/0x290 [ 26.184491][ T360] ? kzalloc+0x1b/0x30 [ 26.188637][ T360] ? __should_failslab+0x8b/0x150 [ 26.193795][ T360] ? kzalloc+0x1b/0x30 [ 26.197849][ T360] ? __kmalloc+0xe7/0x2d0 [ 26.202168][ T360] ? kzalloc+0x1b/0x30 [ 26.206227][ T360] ext4_xattr_block_set+0x470/0x40a0 [ 26.212150][ T360] ? ext4_xattr_block_find+0x550/0x550 [ 26.217775][ T360] ? preempt_count_add+0x66/0x150 [ 26.222979][ T360] ? __ext4_journal_get_write_access+0x86/0x2e0 [ 26.229960][ T360] ? down_write+0xd8/0x150 [ 26.234585][ T360] ? down_read_killable+0x220/0x220 [ 26.239955][ T360] ? ext4_xattr_ibody_find+0x218/0x990 [ 26.246001][ T360] ? ext4_xattr_block_find+0xee/0x550 [ 26.251371][ T360] ? ext4_reserve_inode_write+0x19c/0x220 [ 26.257211][ T360] ext4_xattr_set_handle+0xf7d/0x1f60 [ 26.262646][ T360] ? ext4_xattr_set_entry+0x3b60/0x3b60 [ 26.268347][ T360] ? memset+0x1f/0x40 [ 26.272331][ T360] ? dquot_initialize+0x20/0x20 [ 26.277474][ T360] ? selinux_inode_setxattr+0x659/0x10b0 [ 26.283196][ T360] ? __ext4_journal_start_sb+0x3ad/0x420 [ 26.288818][ T360] ext4_xattr_set+0x229/0x330 [ 26.293838][ T360] ? do_syscall_64+0xcb/0x150 [ 26.298503][ T360] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.304566][ T360] ? ext4_xattr_set_credits+0x290/0x290 [ 26.310104][ T360] ? ext4_xattr_security_get+0x40/0x40 [ 26.316288][ T360] __vfs_setxattr+0x3be/0x400 [ 26.316298][ T360] __vfs_setxattr_noperm+0x12a/0x3e0 [ 26.316304][ T360] vfs_setxattr+0x11e/0x2d0 [ 26.316311][ T360] ? xattr_permission+0x350/0x350 [ 26.316321][ T360] ? strncpy_from_user+0x20c/0x370 [ 26.316329][ T360] setxattr+0x1e2/0x410 [ 26.316336][ T360] ? path_setxattr+0x240/0x240 [ 26.316348][ T360] ? preempt_count_add+0x66/0x150 [ 26.316356][ T360] ? __mnt_want_write+0x1f5/0x270 [ 26.316362][ T360] path_setxattr+0x164/0x240 [ 26.316368][ T360] ? simple_xattr_list_add+0xf0/0xf0 [ 26.316375][ T360] ? __fput+0x4fd/0x6c0 [ 26.316388][ T360] ? fput_many+0x42/0x1a0 [ 26.390008][ T360] __x64_sys_lsetxattr+0xb4/0xd0 [ 26.395079][ T360] do_syscall_64+0xcb/0x150 [ 26.399989][ T360] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.406382][ T360] RIP: 0033:0x4445d9 [ 26.410269][ T360] Code: 2d d7 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 fb d6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 26.431293][ T360] RSP: 002b:00007ffc6e701038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 26.440637][ T360] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00000000004445d9 [ 26.449831][ T360] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000020000080 [ 26.458054][ T360] RBP: 00000000006cf018 R08: 0000000000000000 R09: 0000000000000000 [ 26.466618][ T360] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402160 [ 26.475378][ T360] R13: 00000000004021f0 R14: 0000000000000000 R15: 0000000000000000 [ 26.484738][ T360] Kernel Offset: disabled [ 26.489215][ T360] Rebooting in 86400 seconds..