./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor661323787 <...> Warning: Permanently added '10.128.1.89' (ED25519) to the list of known hosts. execve("./syz-executor661323787", ["./syz-executor661323787"], 0x7ffc13ceb7f0 /* 10 vars */) = 0 brk(NULL) = 0x555555922000 brk(0x555555922d00) = 0x555555922d00 arch_prctl(ARCH_SET_FS, 0x555555922380) = 0 set_tid_address(0x555555922650) = 5015 set_robust_list(0x555555922660, 24) = 0 rseq(0x555555922ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor661323787", 4096) = 27 getrandom("\xd5\x33\x0a\xfc\x5a\x23\x60\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555922d00 brk(0x555555943d00) = 0x555555943d00 brk(0x555555944000) = 0x555555944000 mprotect(0x7fe0e1813000, 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 [ 78.933663][ T26] audit: type=1400 audit(1689871700.387:83): avc: denied { write } for pid=5012 comm="strace-static-x" path="pipe:[30352]" dev="pipefs" ino=30352 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 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) = 0x7fe0d9363000 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"..., 32768) = 32768 munmap(0x7fe0d9363000, 32768) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 78.980345][ T26] audit: type=1400 audit(1689871700.437:84): avc: denied { execmem } for pid=5015 comm="syz-executor661" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 78.982717][ T5015] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5015 'syz-executor661' ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 79.014111][ T26] audit: type=1400 audit(1689871700.467:85): avc: denied { read write } for pid=5015 comm="syz-executor661" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 79.020213][ T5015] loop0: detected capacity change from 0 to 64 [ 79.039184][ T26] audit: type=1400 audit(1689871700.467:86): avc: denied { open } for pid=5015 comm="syz-executor661" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 79.058762][ T5015] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN [ 79.069396][ T26] audit: type=1400 audit(1689871700.467:87): avc: denied { ioctl } for pid=5015 comm="syz-executor661" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 79.080798][ T5015] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 79.080820][ T5015] CPU: 0 PID: 5015 Comm: syz-executor661 Not tainted 6.5.0-rc2-syzkaller-00052-gbfa3037d8280 #0 [ 79.080859][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 79.135343][ T5015] RIP: 0010:hfs_find_init+0x74/0x220 [ 79.140684][ T5015] Code: c1 ea 03 80 3c 02 00 0f 85 9c 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 4b 01 00 00 8b 43 40 be c0 0c [ 79.160410][ T5015] RSP: 0018:ffffc900030ff520 EFLAGS: 00010202 [ 79.166500][ T5015] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.174571][ T5015] RDX: 0000000000000008 RSI: ffffffff82545cb5 RDI: ffffc900030ff598 [ 79.182559][ T5015] RBP: ffffc900030ff580 R08: 0000000000000004 R09: 0000000000000004 [ 79.190632][ T5015] R10: 0000000000000000 R11: ffffffff90f1cba0 R12: 0000000000000004 [ 79.198617][ T5015] R13: 0000000000000040 R14: ffff888079bb350a R15: 0000000000000000 [ 79.206608][ T5015] FS: 0000555555922380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 79.215561][ T5015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.222164][ T5015] CR2: 00000000005fdeb8 CR3: 000000002b627000 CR4: 00000000003506f0 [ 79.230250][ T5015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.238320][ T5015] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.246305][ T5015] Call Trace: [ 79.249594][ T5015] [ 79.252564][ T5015] ? die_addr+0x3b/0xa0 [ 79.256750][ T5015] ? exc_general_protection+0x154/0x230 [ 79.262333][ T5015] ? asm_exc_general_protection+0x26/0x30 [ 79.268423][ T5015] ? hfs_find_init+0x15/0x220 [ 79.273157][ T5015] ? hfs_find_init+0x74/0x220 [ 79.277871][ T5015] hfs_ext_read_extent+0x19c/0x9d0 [ 79.283003][ T5015] ? find_held_lock+0x2d/0x110 [ 79.287786][ T5015] ? hfs_free_extents+0x2f0/0x2f0 [ 79.292918][ T5015] ? reacquire_held_locks+0x4b0/0x4b0 [ 79.298317][ T5015] ? folio_alloc_buffers+0x486/0x800 [ 79.303707][ T5015] hfs_get_block+0x55b/0x820 [ 79.308318][ T5015] block_read_full_folio+0x3df/0xae0 [ 79.313710][ T5015] ? hfs_extend_file+0xb10/0xb10 [ 79.318696][ T5015] ? decrypt_bh+0x390/0x390 [ 79.323216][ T5015] ? folio_add_lru+0x452/0x7d0 [ 79.328008][ T5015] ? hfs_bmap+0x30/0x30 [ 79.332178][ T5015] filemap_read_folio+0xe5/0x2b0 [ 79.337139][ T5015] ? __folio_lock_killable+0x20/0x20 [ 79.342453][ T5015] ? __filemap_get_folio+0x1e7/0x990 [ 79.347768][ T5015] do_read_cache_folio+0x1ff/0x540 [ 79.352991][ T5015] ? hfs_bmap+0x30/0x30 [ 79.357162][ T5015] read_cache_page+0x5b/0x180 [ 79.361870][ T5015] hfs_btree_open+0x662/0x1050 [ 79.366737][ T5015] hfs_mdb_get+0x15d0/0x2020 [ 79.371400][ T5015] ? hfs_mdb_put+0x380/0x380 [ 79.376009][ T5015] ? queue_work_node+0x340/0x340 [ 79.380966][ T5015] ? mark_held_locks+0x9f/0xe0 [ 79.385753][ T5015] ? lockdep_init_map_type+0x16d/0x7c0 [ 79.391236][ T5015] ? lockdep_init_map_type+0x16d/0x7c0 [ 79.396720][ T5015] ? __raw_spin_lock_init+0x3a/0x110 [ 79.402034][ T5015] hfs_fill_super+0xb1e/0x16e0 [ 79.406822][ T5015] ? hfs_remount+0x2c0/0x2c0 [ 79.411433][ T5015] ? pointer+0xbf0/0xbf0 [ 79.415709][ T5015] ? set_blocksize+0x2bd/0x360 [ 79.420495][ T5015] ? hfs_remount+0x2c0/0x2c0 [ 79.425103][ T5015] ? mount_bdev+0x30d/0x3d0 [ 79.429632][ T5015] mount_bdev+0x30d/0x3d0 [ 79.433983][ T5015] ? hfs_statfs+0x4b0/0x4b0 [ 79.438503][ T5015] legacy_get_tree+0x109/0x220 [ 79.443296][ T5015] vfs_get_tree+0x88/0x350 [ 79.447730][ T5015] path_mount+0x1492/0x1ed0 [ 79.452263][ T5015] ? lockdep_hardirqs_on+0x7d/0x100 [ 79.457487][ T5015] ? finish_automount+0xa50/0xa50 [ 79.462798][ T5015] ? putname+0x101/0x140 [ 79.467081][ T5015] __x64_sys_mount+0x293/0x310 [ 79.471868][ T5015] ? copy_mnt_ns+0xb60/0xb60 [ 79.476477][ T5015] ? lockdep_hardirqs_on+0x7d/0x100 [ 79.481697][ T5015] ? _raw_spin_unlock_irq+0x2e/0x50 [ 79.486929][ T5015] ? ptrace_notify+0xf4/0x130 [ 79.491638][ T5015] do_syscall_64+0x38/0xb0 [ 79.496074][ T5015] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 79.502185][ T5015] RIP: 0033:0x7fe0e17a18ba [ 79.506715][ T5015] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 79.526338][ T5015] RSP: 002b:00007ffc3a0637e8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 79.534769][ T5015] RAX: ffffffffffffffda RBX: 00007ffc3a063800 RCX: 00007fe0e17a18ba [ 79.542841][ T5015] RDX: 0000000020000240 RSI: 0000000020000000 RDI: 00007ffc3a063800 [ 79.551003][ T5015] RBP: 0000000000000004 R08: 00007ffc3a063840 R09: 0000000000000248 [ 79.559005][ T5015] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 79.567078][ T5015] R13: 00007ffc3a063840 R14: 0000000000000003 R15: 0000000000008000 [ 79.575069][ T5015] [ 79.578098][ T5015] Modules linked in: [ 79.582504][ T26] audit: type=1400 audit(1689871700.497:88): avc: denied { mounton } for pid=5015 comm="syz-executor661" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 79.605434][ T5015] ---[ end trace 0000000000000000 ]--- [ 79.605451][ T5015] RIP: 0010:hfs_find_init+0x74/0x220 [ 79.611054][ T26] audit: type=1400 audit(1689871701.037:89): avc: denied { append } for pid=4449 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 79.616701][ T5015] Code: c1 ea 03 80 3c 02 00 0f 85 9c 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 4b 01 00 00 8b 43 40 be c0 0c [ 79.638683][ T26] audit: type=1400 audit(1689871701.037:90): avc: denied { open } for pid=4449 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 79.658678][ T5015] RSP: 0018:ffffc900030ff520 EFLAGS: 00010202 [ 79.680673][ T26] audit: type=1400 audit(1689871701.037:91): avc: denied { getattr } for pid=4449 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 79.687009][ T5015] [ 79.712084][ T5015] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.720150][ T5015] RDX: 0000000000000008 RSI: ffffffff82545cb5 RDI: ffffc900030ff598 [ 79.728190][ T5015] RBP: ffffc900030ff580 R08: 0000000000000004 R09: 0000000000000004 [ 79.736195][ T5015] R10: 0000000000000000 R11: ffffffff90f1cba0 R12: 0000000000000004 [ 79.744318][ T5015] R13: 0000000000000040 R14: ffff888079bb350a R15: 0000000000000000 [ 79.752365][ T5015] FS: 0000555555922380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 79.761348][ T5015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.767993][ T5015] CR2: 0000000001640388 CR3: 000000002b627000 CR4: 00000000003506e0 [ 79.775973][ T5015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.783987][ T5015] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.792056][ T5015] Kernel panic - not syncing: Fatal exception [ 79.798451][ T5015] Kernel Offset: disabled [ 79.802787][ T5015] Rebooting in 86400 seconds..