[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. executing program [ 81.855911][ T37] audit: type=1400 audit(1619894409.818:8): avc: denied { execmem } for pid=8391 comm="syz-executor581" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 81.863626][ T8391] loop0: detected capacity change from 0 to 4 [ 81.897938][ T8391] VFS: Found a V7 FS (block size = 512) on device loop0 [ 81.920454][ T8391] ------------[ cut here ]------------ [ 81.926900][ T8391] WARNING: CPU: 0 PID: 8391 at fs/inode.c:361 inc_nlink+0x144/0x160 [ 81.940767][ T8391] Modules linked in: [ 81.944729][ T8391] CPU: 1 PID: 8391 Comm: syz-executor581 Not tainted 5.12.0-syzkaller #0 [ 81.955517][ T8391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.969241][ T8391] RIP: 0010:inc_nlink+0x144/0x160 [ 81.974349][ T8391] Code: ff 4c 89 e7 e8 3d ec ed ff e9 42 ff ff ff 4c 89 e7 e8 c0 eb ed ff e9 fc fe ff ff 4c 89 e7 e8 b3 eb ed ff eb d4 e8 6c 94 aa ff <0f> 0b e9 6e ff ff ff e8 b0 eb ed ff e9 44 ff ff ff e8 a6 eb ed ff [ 81.994512][ T8391] RSP: 0018:ffffc90001b27df0 EFLAGS: 00010293 [ 82.001276][ T8391] RAX: 0000000000000000 RBX: ffff888038bdb9e8 RCX: 0000000000000000 [ 82.010068][ T8391] RDX: ffff8880280c4140 RSI: ffffffff81c8fe64 RDI: 0000000000000003 [ 82.018999][ T8391] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 82.027580][ T8391] R10: ffffffff81c8fdd0 R11: 0000000000000000 R12: ffff888038bdba30 [ 82.036842][ T8391] R13: ffff888035a9f7d8 R14: ffffffff89951fc0 R15: 0000000000000021 [ 82.045733][ T8391] FS: 00000000014ea300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 82.055550][ T8391] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.062692][ T8391] CR2: 0000564f70ee6a00 CR3: 0000000012734000 CR4: 00000000001506f0 [ 82.070949][ T8391] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.079294][ T8391] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.088028][ T8391] Call Trace: [ 82.091385][ T8391] sysv_mkdir+0x21/0x150 [ 82.095899][ T8391] vfs_mkdir+0x538/0x770 [ 82.100283][ T8391] do_mkdirat+0x284/0x310 [ 82.104862][ T8391] ? user_path_create+0xf0/0xf0 [ 82.109985][ T8391] ? syscall_enter_from_user_mode+0x27/0x70 [ 82.116153][ T8391] do_syscall_64+0x3a/0xb0 [ 82.120807][ T8391] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 82.126744][ T8391] RIP: 0033:0x443c29 [ 82.130837][ T8391] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 [ 82.150674][ T8391] RSP: 002b:00007fffe4640158 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 82.160513][ T8391] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443c29 [ 82.169400][ T8391] RDX: 00000000004021f3 RSI: 0000000000000023 RDI: 0000000020000080 [ 82.177516][ T8391] RBP: 00000000004034c0 R08: 0000000000000000 R09: 0000000000000000 [ 82.185694][ T8391] R10: 00007fffe4640020 R11: 0000000000000246 R12: 0000000000403550 [ 82.193973][ T8391] R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0 [ 82.202292][ T8391] Kernel panic - not syncing: panic_on_warn set ... [ 82.208906][ T8391] CPU: 0 PID: 8391 Comm: syz-executor581 Not tainted 5.12.0-syzkaller #0 [ 82.217332][ T8391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.227414][ T8391] Call Trace: [ 82.231028][ T8391] dump_stack+0x141/0x1d7 [ 82.235379][ T8391] panic+0x306/0x73d [ 82.239367][ T8391] ? __warn_printk+0xf3/0xf3 [ 82.243983][ T8391] ? __warn.cold+0x1a/0x44 [ 82.248420][ T8391] ? inc_nlink+0x144/0x160 [ 82.252846][ T8391] __warn.cold+0x35/0x44 [ 82.257126][ T8391] ? inc_nlink+0x144/0x160 [ 82.261568][ T8391] report_bug+0x1bd/0x210 [ 82.265903][ T8391] handle_bug+0x3c/0x60 [ 82.270072][ T8391] exc_invalid_op+0x14/0x40 [ 82.274596][ T8391] asm_exc_invalid_op+0x12/0x20 [ 82.279873][ T8391] RIP: 0010:inc_nlink+0x144/0x160 [ 82.284936][ T8391] Code: ff 4c 89 e7 e8 3d ec ed ff e9 42 ff ff ff 4c 89 e7 e8 c0 eb ed ff e9 fc fe ff ff 4c 89 e7 e8 b3 eb ed ff eb d4 e8 6c 94 aa ff <0f> 0b e9 6e ff ff ff e8 b0 eb ed ff e9 44 ff ff ff e8 a6 eb ed ff [ 82.304778][ T8391] RSP: 0018:ffffc90001b27df0 EFLAGS: 00010293 [ 82.310938][ T8391] RAX: 0000000000000000 RBX: ffff888038bdb9e8 RCX: 0000000000000000 [ 82.318924][ T8391] RDX: ffff8880280c4140 RSI: ffffffff81c8fe64 RDI: 0000000000000003 [ 82.326901][ T8391] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 82.335663][ T8391] R10: ffffffff81c8fdd0 R11: 0000000000000000 R12: ffff888038bdba30 [ 82.343683][ T8391] R13: ffff888035a9f7d8 R14: ffffffff89951fc0 R15: 0000000000000021 [ 82.351695][ T8391] ? inc_nlink+0xb0/0x160 [ 82.356370][ T8391] ? inc_nlink+0x144/0x160 [ 82.360829][ T8391] sysv_mkdir+0x21/0x150 [ 82.365287][ T8391] vfs_mkdir+0x538/0x770 [ 82.369592][ T8391] do_mkdirat+0x284/0x310 [ 82.374046][ T8391] ? user_path_create+0xf0/0xf0 [ 82.378940][ T8391] ? syscall_enter_from_user_mode+0x27/0x70 [ 82.384971][ T8391] do_syscall_64+0x3a/0xb0 [ 82.389446][ T8391] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 82.395400][ T8391] RIP: 0033:0x443c29 [ 82.399326][ T8391] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 [ 82.418981][ T8391] RSP: 002b:00007fffe4640158 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 82.427449][ T8391] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443c29 [ 82.435632][ T8391] RDX: 00000000004021f3 RSI: 0000000000000023 RDI: 0000000020000080 [ 82.443661][ T8391] RBP: 00000000004034c0 R08: 0000000000000000 R09: 0000000000000000 [ 82.451671][ T8391] R10: 00007fffe4640020 R11: 0000000000000246 R12: 0000000000403550 [ 82.459831][ T8391] R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0 [ 82.468776][ T8391] Kernel Offset: disabled [ 82.473190][ T8391] Rebooting in 86400 seconds..