Warning: Permanently added '10.128.1.24' (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 (9s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ 17.670651][ T22] audit: type=1400 audit(1616826045.052:8): avc: denied { execmem } for pid=335 comm="syz-executor312" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program executing program executing program [ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ 17.998406][ T349] ------------[ cut here ]------------ [ 18.003903][ T349] kernel BUG at fs/ext4/ext4.h:2977! [ 18.009595][ T349] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 18.010346][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.015667][ T349] CPU: 0 PID: 349 Comm: syz-executor312 Not tainted 5.4.108-syzkaller-00846-g7af03784d889 #0 [ 18.034618][ T349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.036555][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.044683][ T349] RIP: 0010:ext4_mb_load_buddy_gfp+0xdf0/0xe10 [ 18.044692][ T349] Code: ff e8 84 3c cd ff e9 45 f4 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 8c f4 ff ff e8 8a 3c cd ff e9 82 f4 ff ff e8 50 6e 9e ff <0f> 0b e8 49 6e 9e ff 0f 0b e8 42 6e 9e ff 0f 0b e8 3b 6e 9e ff 0f [ 18.044697][ T349] RSP: 0018:ffff8881e8d07c08 EFLAGS: 00010293 [ 18.044705][ T349] RAX: ffffffff81c6d8f0 RBX: 0000000000000010 RCX: ffff8881e92ede80 [ 18.044709][ T349] RDX: 0000000000000000 RSI: 00000000fffec510 RDI: 0000000000000010 [ 18.044714][ T349] RBP: ffff8881f1763000 R08: ffffffff81c6cbd3 R09: ffffed103be1e007 [ 18.044732][ T349] R10: ffffed103be1e007 R11: 0000000000000000 R12: 1ffff1103e2ec47e [ 18.076326][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.079273][ T349] R13: ffff8881f1762018 R14: 00000000fffec510 R15: ffff8881f17623f0 [ 18.079281][ T349] FS: 00000000005de400(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 18.079295][ T349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.098412][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.101249][ T349] CR2: 00007fc84ba52718 CR3: 00000001ea9e4000 CR4: 00000000001406f0 [ 18.101258][ T349] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.101262][ T349] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.101266][ T349] Call Trace: [ 18.101286][ T349] ? do_nanosleep+0x59c/0x6c0 [ 18.101303][ T349] ? ext4_get_group_number+0xdb/0x190 [ 18.121640][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.126086][ T349] ext4_discard_preallocations+0x63d/0x1240 [ 18.126101][ T349] ? memset+0x1f/0x40 [ 18.157789][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.158364][ T349] ? fsnotify+0x1332/0x13f0 [ 18.181146][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.182250][ T349] ? ext4_exit_mballoc+0xf0/0xf0 [ 18.182266][ T349] ? __fsnotify_parent+0x310/0x310 [ 18.187853][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.190290][ T349] ext4_release_file+0x160/0x300 [ 18.190305][ T349] ? ext4_file_open+0x5f0/0x5f0 [ 18.199850][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.204917][ T349] __fput+0x27d/0x6c0 [ 18.204930][ T349] task_work_run+0x186/0x1b0 [ 18.204940][ T349] prepare_exit_to_usermode+0x2b0/0x310 [ 18.204950][ T349] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.204964][ T349] RIP: 0033:0x40845b write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/vm/nr_overcommit_hugepages failed: No such file or directory [ 18.219456][ T214] EXT4-fs error (device sda1) in ext4_reserve_inode_write:6013: Out of memory [ 18.223759][ T349] Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 [ 18.223764][ T349] RSP: 002b:00007fffeda7d0d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 18.223773][ T349] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000040845b write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/vm/nr_overcommit_hugepages failed: No such file or directory write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory write to /proc/sys/vm/nr_overcommit_hugepages failed: No such file or directory executing program executing program executing program [ 18.223777][ T349] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 18.223782][ T349] RBP: 00000000004cf4ec R08: 0000000000000000 R09: 0000003500000000 [ 18.223786][ T349] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032 [ 18.223791][ T349] R13: 00007fffeda7d130 R14: 00007fffeda7d1a0 R15: 000000000000000b [ 18.223804][ T349] Modules linked in: [ *[0;[ 18.381410][ T349] ---[ end trace 3d196932b2314b43 ]--- 1;31m*[0;31[ 18.389762][ T349] RIP: 0010:ext4_mb_load_buddy_gfp+0xdf0/0xe10 m*] A start job is running f[ 18.397996][ T349] Code: ff e8 84 3c cd ff e9 45 f4 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 8c f4 ff ff e8 8a 3c cd ff e9 82 f4 ff ff e8 50 6e 9e ff <0f> 0b e8 49 6e 9e ff 0f 0b e8 42 6e 9e ff 0f 0b e8 3b 6e 9e ff 0f or dev-ttyS0.device (11s / 1min [ 18.420948][ T349] RSP: 0018:ffff8881e8d07c08 EFLAGS: 00010293 30s)[ 18.428226][ T349] RAX: ffffffff81c6d8f0 RBX: 0000000000000010 RCX: ffff8881e92ede80 [ 18.436519][ T349] RDX: 0000000000000000 RSI: 00000000fffec510 RDI: 0000000000000010 [ 18.445186][ T349] RBP: ffff8881f1763000 R08: ffffffff81c6cbd3 R09: ffffed103be1e007 [ 18.453508][ T349] R10: ffffed103be1e007 R11: 0000000000000000 R12: 1ffff1103e2ec47e [ 18.462159][ T349] R13: ffff8881f1762018 R14: 00000000fffec510 R15: ffff8881f17623f0 [ 18.470347][ T349] FS: 00000000005de400(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 18.479423][ T349] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.486089][ T349] CR2: 00007fe59ea20000 CR3: 00000001ea9e4000 CR4: 00000000001406e0 [ 18.494227][ T349] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.502263][ T349] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.510341][ T349] Kernel panic - not syncing: Fatal exception [ 18.516433][ T349] Kernel Offset: disabled [ 18.520755][ T349] Rebooting in 86400 seconds..