syzkaller syzkaller login: [ 12.181120][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 12.181127][ T23] audit: type=1400 audit(1647358438.720:71): avc: denied { transition } for pid=289 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.186964][ T23] audit: type=1400 audit(1647358438.720:72): avc: denied { write } for pid=289 comm="sh" path="pipe:[11459]" dev="pipefs" ino=11459 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.207345][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 13.611869][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 13.614511][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 13.617025][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 16.480728][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.1.31' (ECDSA) to the list of known hosts. executing program [ 19.091140][ T23] audit: type=1400 audit(1647358445.630:73): avc: denied { execmem } for pid=364 comm="syz-executor340" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.110570][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 19.119656][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! [ 19.168159][ T365] EXT4-fs warning (device sda1): ext4_block_to_path:107: block 1074791436 > max in inode 1137 [ 19.178473][ T365] ------------[ cut here ]------------ [ 19.184180][ T365] kernel BUG at fs/ext4/indirect.c:1239! [ 19.189825][ T365] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 19.195863][ T365] CPU: 0 PID: 365 Comm: syz-executor340 Not tainted 5.10.104-syzkaller-00370-gd221da1d6fcb #0 [ 19.206406][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.216466][ T365] RIP: 0010:ext4_ind_remove_space+0x2309/0x2310 [ 19.222686][ T365] Code: f2 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 f3 ff ff 48 89 df e8 86 26 cd ff e9 77 f3 ff ff e8 2c 16 bc 02 e8 67 24 93 ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 19.242271][ T365] RSP: 0018:ffffc90000a1fb00 EFLAGS: 00010293 [ 19.248308][ T365] RAX: ffffffff81d9c919 RBX: 0000000000000001 RCX: ffff8881071e62c0 [ 19.256259][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 19.264209][ T365] RBP: ffffc90000a1fd60 R08: ffffffff81d9adf9 R09: ffffed103ee2a5d8 [ 19.272154][ T365] R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: dffffc0000000000 [ 19.280099][ T365] R13: ffffc90000a1fcf0 R14: ffffc90000a1fbe0 R15: 0000000000000000 [ 19.288046][ T365] FS: 00007fe260aa8700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 19.297033][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.303586][ T365] CR2: 0000000020400681 CR3: 00000001071f1000 CR4: 00000000003506b0 [ 19.311530][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.319472][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.327415][ T365] Call Trace: [ 19.330696][ T365] ? ext4_free_branches+0x640/0x640 [ 19.335863][ T365] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 19.341638][ T365] ? percpu_counter_add_batch+0x14b/0x170 [ 19.347326][ T365] ? ext4_es_lookup_extent+0x9d0/0x9d0 [ 19.352753][ T365] ext4_punch_hole+0x8cc/0xf70 [ 19.357485][ T365] ext4_fallocate+0x125/0x760 [ 19.362173][ T365] vfs_fallocate+0x5e7/0xa90 [ 19.366733][ T365] __x64_sys_fallocate+0xc0/0x110 [ 19.371725][ T365] do_syscall_64+0x31/0x70 [ 19.376110][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.381981][ T365] RIP: 0033:0x7fe260af5df9 [ 19.386368][ T365] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 19.405944][ T365] RSP: 002b:00007fe260aa8308 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 19.414324][ T365] RAX: ffffffffffffffda RBX: 000000000000003f RCX: 00007fe260af5df9 [ 19.422264][ T365] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005 [ 19.430205][ T365] RBP: 00007fe260b7e408 R08: 0000000000000000 R09: 0000000000000000 [ 19.438156][ T365] R10: 00000ffeffeff000 R11: 0000000000000246 R12: 00000ffeffeff000 [ 19.446098][ T365] R13: 00007fe260b7e400 R14: 00007fe260b4c004 R15: 0000000000022000 [ 19.454040][ T365] Modules linked in: [ 19.458028][ T365] ---[ end trace 4c06e7c215a474ec ]--- [ 19.463518][ T365] RIP: 0010:ext4_ind_remove_space+0x2309/0x2310 [ 19.469746][ T365] Code: f2 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 f3 ff ff 48 89 df e8 86 26 cd ff e9 77 f3 ff ff e8 2c 16 bc 02 e8 67 24 93 ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 19.489379][ T365] RSP: 0018:ffffc90000a1fb00 EFLAGS: 00010293 [ 19.495477][ T365] RAX: ffffffff81d9c919 RBX: 0000000000000001 RCX: ffff8881071e62c0 [ 19.503459][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 19.511475][ T365] RBP: ffffc90000a1fd60 R08: ffffffff81d9adf9 R09: ffffed103ee2a5d8 [ 19.519431][ T365] R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: dffffc0000000000 [ 19.527626][ T365] R13: ffffc90000a1fcf0 R14: ffffc90000a1fbe0 R15: 0000000000000000 [ 19.535628][ T365] FS: 00007fe260aa8700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 19.544582][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.551182][ T365] CR2: 0000000020400681 CR3: 00000001071f1000 CR4: 00000000003506b0 [ 19.559160][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.567145][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.575136][ T365] Kernel panic - not syncing: Fatal exception [ 19.581368][ T365] Kernel Offset: disabled [ 19.585671][ T365] Rebooting in 86400 seconds..