./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2532648641 <...> [ 3.842480][ T101] udevd[101]: starting version 3.2.11 [ 3.884724][ T102] udevd[102]: starting eudev-3.2.11 [ 4.577776][ T122] dbus-uuidgen (122) used greatest stack depth: 23056 bytes left [ 4.640825][ T123] dbus-daemon (123) used greatest stack depth: 22320 bytes left [ 11.760130][ T28] kauditd_printk_skb: 50 callbacks suppressed [ 11.760142][ T28] audit: type=1400 audit(1715857300.293:61): avc: denied { transition } for pid=225 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.765745][ T28] audit: type=1400 audit(1715857300.293:62): avc: denied { noatsecure } for pid=225 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.769504][ T28] audit: type=1400 audit(1715857300.293:63): avc: denied { write } for pid=225 comm="sh" path="pipe:[2986]" dev="pipefs" ino=2986 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 11.773401][ T28] audit: type=1400 audit(1715857300.293:64): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 11.776012][ T28] audit: type=1400 audit(1715857300.293:65): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.204' (ED25519) to the list of known hosts. execve("./syz-executor2532648641", ["./syz-executor2532648641"], 0x7fff5634c470 /* 10 vars */) = 0 brk(NULL) = 0x555557457000 brk(0x555557457d00) = 0x555557457d00 arch_prctl(ARCH_SET_FS, 0x555557457380) = 0 set_tid_address(0x555557457650) = 304 set_robust_list(0x555557457660, 24) = 0 rseq(0x555557457ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2532648641", 4096) = 28 getrandom("\x2e\x15\xc7\x55\x8a\xf1\x7b\x17", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557457d00 brk(0x555557478d00) = 0x555557478d00 brk(0x555557479000) = 0x555557479000 mprotect(0x7f8bfb453000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8bf2fa2000 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 munmap(0x7f8bf2fa2000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 30.383311][ T28] audit: type=1400 audit(1715857318.913:66): avc: denied { execmem } for pid=304 comm="syz-executor253" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 30.391988][ T28] audit: type=1400 audit(1715857318.923:67): avc: denied { read write } for pid=304 comm="syz-executor253" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 30.392671][ T304] loop0: detected capacity change from 0 to 2048 [ 30.395786][ T28] audit: type=1400 audit(1715857318.923:68): avc: denied { open } for pid=304 comm="syz-executor253" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 30.401974][ T28] audit: type=1400 audit(1715857318.923:69): avc: denied { ioctl } for pid=304 comm="syz-executor253" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 mount("/dev/loop0", "./file1", "ext4", 0, ",errors=continue") = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0 [ 30.421689][ T28] audit: type=1400 audit(1715857318.933:70): avc: denied { mounton } for pid=304 comm="syz-executor253" path="/root/file1" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 30.446209][ T304] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 30.454799][ T28] audit: type=1400 audit(1715857318.983:71): avc: denied { mount } for pid=304 comm="syz-executor253" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 open("./bus", O_RDWR|O_CREAT|O_EXCL|O_NOCTTY|O_SYNC|O_NOATIME|FASYNC, 000) = 4 [ 30.477717][ T28] audit: type=1400 audit(1715857319.013:72): avc: denied { write } for pid=304 comm="syz-executor253" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 30.478569][ T304] ------------[ cut here ]------------ [ 30.499823][ T28] audit: type=1400 audit(1715857319.013:73): avc: denied { add_name } for pid=304 comm="syz-executor253" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 30.504818][ T304] kernel BUG at fs/ext4/inline.c:236! [ 30.525259][ T28] audit: type=1400 audit(1715857319.013:74): avc: denied { create } for pid=304 comm="syz-executor253" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 30.530472][ T304] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 30.550486][ T28] audit: type=1400 audit(1715857319.013:75): avc: denied { read write open } for pid=304 comm="syz-executor253" path="/root/file1/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 30.556366][ T304] CPU: 1 PID: 304 Comm: syz-executor253 Not tainted 6.1.75-syzkaller-00009-g274e3e96961d #0 [ 30.589787][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 30.599678][ T304] RIP: 0010:ext4_write_inline_data+0x3a4/0x3b0 [ 30.605665][ T304] Code: 07 fe c1 38 c1 0f 8c 42 ff ff ff 4c 89 e7 49 89 d6 e8 90 a0 ca ff 4c 89 f2 e9 2f ff ff ff e8 c3 a7 83 ff 0f 0b e8 bc a7 83 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 [ 30.625109][ T304] RSP: 0018:ffffc90000c77768 EFLAGS: 00010293 [ 30.631010][ T304] RAX: ffffffff81f1c854 RBX: 000000000000003c RCX: ffff88812356d100 [ 30.638825][ T304] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000010000000006 [ 30.646632][ T304] RBP: ffffc90000c777d0 R08: ffffffff81f1c5dd R09: ffffed102011444b [ 30.654447][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000010000000005 [ 30.662254][ T304] R13: ffffc90000c77860 R14: 0000010000000006 R15: 0000000000000001 [ 30.670067][ T304] FS: 0000555557457380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 30.678834][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.685255][ T304] CR2: 000055bc84d6dc50 CR3: 0000000121e07000 CR4: 00000000003506a0 [ 30.693069][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.700888][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.708689][ T304] Call Trace: [ 30.711812][ T304] [ 30.714680][ T304] ? __die_body+0x62/0xb0 [ 30.718843][ T304] ? die+0x88/0xb0 [ 30.722406][ T304] ? do_trap+0x103/0x330 [ 30.726568][ T304] ? ext4_write_inline_data+0x3a4/0x3b0 [ 30.731949][ T304] ? handle_invalid_op+0x95/0xc0 [ 30.736722][ T304] ? ext4_write_inline_data+0x3a4/0x3b0 [ 30.742111][ T304] ? exc_invalid_op+0x32/0x50 [ 30.746615][ T304] ? asm_exc_invalid_op+0x1b/0x20 [ 30.751480][ T304] ? ext4_write_inline_data+0x12d/0x3b0 [ 30.756858][ T304] ? ext4_write_inline_data+0x3a4/0x3b0 [ 30.762247][ T304] ? ext4_write_inline_data+0x3a4/0x3b0 [ 30.767622][ T304] ? ext4_write_inline_data+0x3a4/0x3b0 [ 30.773003][ T304] ext4_write_inline_data_end+0x328/0xa90 [ 30.778561][ T304] ? put_page+0xc0/0xc0 [ 30.782549][ T304] ? ext4_da_write_begin+0x489/0x920 [ 30.787671][ T304] ? pipe_zero+0x220/0x220 [ 30.792456][ T304] ext4_da_write_end+0x1ea/0x9a0 [ 30.797224][ T304] ? ext4_da_write_begin+0x920/0x920 [ 30.802340][ T304] generic_perform_write+0x3e6/0x5c0 [ 30.807462][ T304] ? generic_file_direct_write+0x6b0/0x6b0 [ 30.813104][ T304] ? generic_write_checks_count+0x490/0x490 [ 30.818833][ T304] ext4_buffered_write_iter+0x360/0x640 [ 30.824217][ T304] ext4_file_write_iter+0x194/0x1570 [ 30.829332][ T304] ? __update_idle_core+0x310/0x310 [ 30.834365][ T304] ? _raw_spin_unlock+0x4c/0x70 [ 30.839055][ T304] ? finish_task_switch+0x167/0x7b0 [ 30.844087][ T304] ? avc_policy_seqno+0x1b/0x70 [ 30.848956][ T304] ? ext4_file_read_iter+0x470/0x470 [ 30.854068][ T304] ? fsnotify_perm+0x6a/0x5d0 [ 30.858580][ T304] vfs_write+0x902/0xeb0 [ 30.862658][ T304] ? _raw_spin_lock_irqsave+0x210/0x210 [ 30.868052][ T304] ? file_end_write+0x1c0/0x1c0 [ 30.872730][ T304] ? __kasan_check_read+0x11/0x20 [ 30.877683][ T304] ? __fdget+0x179/0x240 [ 30.881752][ T304] __x64_sys_pwrite64+0x1a6/0x230 [ 30.886624][ T304] ? ksys_pwrite64+0x1d0/0x1d0 [ 30.891217][ T304] ? syscall_enter_from_user_mode+0x6a/0x190 [ 30.897030][ T304] do_syscall_64+0x3d/0xb0 [ 30.901283][ T304] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 30.907011][ T304] RIP: 0033:0x7f8bfb3df679 [ 30.911266][ T304] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 [ 30.930706][ T304] RSP: 002b:00007ffea6b4d7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 30.939039][ T304] RAX: ffffffffffffffda RBX: 00007ffea6b4d9b8 RCX: 00007f8bfb3df679 [ 30.946848][ T304] RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000004 [ 30.954781][ T304] RBP: 00007f8bfb453610 R08: 0000000000000000 R09: 00007ffea6b4d9b8 [ 30.962558][ T304] R10: 0000010000000005 R11: 0000000000000246 R12: 0000000000000001 [ 30.970456][ T304] R13: 00007ffea6b4d9a8 R14: 0000000000000001 R15: 0000000000000001 [ 30.978358][ T304] [ 30.981218][ T304] Modules linked in: [ 30.985024][ T304] ---[ end trace 0000000000000000 ]--- [ 30.990273][ T304] RIP: 0010:ext4_write_inline_data+0x3a4/0x3b0 [ 30.996324][ T304] Code: 07 fe c1 38 c1 0f 8c 42 ff ff ff 4c 89 e7 49 89 d6 e8 90 a0 ca ff 4c 89 f2 e9 2f ff ff ff e8 c3 a7 83 ff 0f 0b e8 bc a7 83 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 [ 31.016144][ T304] RSP: 0018:ffffc90000c77768 EFLAGS: 00010293 [ 31.022024][ T304] RAX: ffffffff81f1c854 RBX: 000000000000003c RCX: ffff88812356d100 [ 31.029848][ T304] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000010000000006 [ 31.037786][ T304] RBP: ffffc90000c777d0 R08: ffffffff81f1c5dd R09: ffffed102011444b [ 31.045576][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000010000000005 [ 31.053417][ T304] R13: ffffc90000c77860 R14: 0000010000000006 R15: 0000000000000001 [ 31.061229][ T304] FS: 0000555557457380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 31.070004][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.076391][ T304] CR2: 000055bc84d6dc50 CR3: 0000000121e07000 CR4: 00000000003506a0 [ 31.084244][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.092035][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.099849][ T304] Kernel panic - not syncing: Fatal exception [ 31.105997][ T304] Kernel Offset: disabled [ 31.110117][ T304] Rebooting in 86400 seconds..