forked to background, child pid 197 Starting sshd: OK syzkaller syzkaller login: [ 11.687622][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 11.687630][ T23] audit: type=1400 audit(1642680029.099:71): avc: denied { transition } for pid=288 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 [ 11.692148][ T23] audit: type=1400 audit(1642680029.099:72): avc: denied { write } for pid=288 comm="sh" path="pipe:[11466]" dev="pipefs" ino=11466 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.795960][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 16.215998][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts. executing program [ 21.125608][ T23] audit: type=1400 audit(1642680038.529:73): avc: denied { execmem } for pid=365 comm="syz-executor042" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.183297][ T365] EXT4-fs warning (device sda1): ext4_block_to_path:107: block 1074791436 > max in inode 1137 [ 21.193607][ T365] ------------[ cut here ]------------ [ 21.199065][ T365] kernel BUG at fs/ext4/indirect.c:1239! [ 21.204687][ T365] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 21.210724][ T365] CPU: 1 PID: 365 Comm: syz-executor042 Not tainted 5.10.92-syzkaller-01003-gf45f895af546 #0 [ 21.220846][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.230902][ T365] RIP: 0010:ext4_ind_remove_space+0x2309/0x2310 [ 21.237122][ 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 16 0b c7 ff e9 77 f3 ff ff e8 9c 67 bb 02 e8 27 16 8d ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 21.256706][ T365] RSP: 0018:ffffc90000b67b00 EFLAGS: 00010293 [ 21.262751][ T365] RAX: ffffffff81dfd559 RBX: 0000000000000003 RCX: ffff88810758a780 [ 21.270695][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.278736][ T365] RBP: ffffc90000b67d60 R08: ffffffff81dfba39 R09: ffffed103ee2a5d8 [ 21.286778][ T365] R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: dffffc0000000000 [ 21.294721][ T365] R13: ffffc90000b67cf0 R14: ffffc90000b67be0 R15: 0000000000000000 [ 21.302675][ T365] FS: 00005555555d9300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.311630][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.318189][ T365] CR2: 0000000020400002 CR3: 000000011cf64000 CR4: 00000000003506a0 [ 21.326182][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.334136][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.342081][ T365] Call Trace: [ 21.345354][ T365] ? ext4_free_branches+0x640/0x640 [ 21.350529][ T365] ? ext4_es_lookup_extent+0x9d0/0x9d0 [ 21.355979][ T365] ext4_punch_hole+0x8cc/0xf70 [ 21.360729][ T365] ext4_fallocate+0x125/0x760 [ 21.365380][ T365] vfs_fallocate+0x5e7/0xa90 [ 21.369946][ T365] __x64_sys_fallocate+0xc0/0x110 [ 21.374950][ T365] do_syscall_64+0x31/0x70 [ 21.379351][ T365] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.385218][ T365] RIP: 0033:0x7f86a69310d9 [ 21.389608][ T365] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 21.409290][ T365] RSP: 002b:00007ffe0cd01098 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 21.417673][ T365] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f86a69310d9 [ 21.425616][ T365] RDX: 0000000001000000 RSI: 0000000000000003 RDI: 0000000000000005 [ 21.433658][ T365] RBP: 00007f86a68f50c0 R08: 0000000000000000 R09: 0000000000000000 [ 21.441607][ T365] R10: 00000ffeffeff000 R11: 0000000000000246 R12: 00007f86a68f5150 [ 21.449564][ T365] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 21.457515][ T365] Modules linked in: [ 21.461482][ T365] ---[ end trace e7147ca29bc31338 ]--- [ 21.466963][ T365] RIP: 0010:ext4_ind_remove_space+0x2309/0x2310 [ 21.473190][ 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 16 0b c7 ff e9 77 f3 ff ff e8 9c 67 bb 02 e8 27 16 8d ff <0f> 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 [ 21.492889][ T365] RSP: 0018:ffffc90000b67b00 EFLAGS: 00010293 [ 21.498957][ T365] RAX: ffffffff81dfd559 RBX: 0000000000000003 RCX: ffff88810758a780 [ 21.506928][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.514883][ T365] RBP: ffffc90000b67d60 R08: ffffffff81dfba39 R09: ffffed103ee2a5d8 [ 21.522860][ T365] R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: dffffc0000000000 [ 21.530827][ T365] R13: ffffc90000b67cf0 R14: ffffc90000b67be0 R15: 0000000000000000 [ 21.538799][ T365] FS: 00005555555d9300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.547718][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.554272][ T365] CR2: 0000000020400002 CR3: 000000011cf64000 CR4: 00000000003506a0 [ 21.562335][ T365] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.570300][ T365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.578274][ T365] Kernel panic - not syncing: Fatal exception [ 21.584626][ T365] Kernel Offset: disabled [ 21.588932][ T365] Rebooting in 86400 seconds..