./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3380246946 <...> Warning: Permanently added '10.128.0.245' (ED25519) to the list of known hosts. execve("./syz-executor3380246946", ["./syz-executor3380246946"], 0x7fffbe89feb0 /* 10 vars */) = 0 brk(NULL) = 0x555556963000 brk(0x555556963d00) = 0x555556963d00 arch_prctl(ARCH_SET_FS, 0x555556963380) = 0 set_tid_address(0x555556963650) = 5045 set_robust_list(0x555556963660, 24) = 0 rseq(0x555556963ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3380246946", 4096) = 28 getrandom("\x0d\xee\x21\x44\x17\xe2\xbf\x8b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556963d00 brk(0x555556984d00) = 0x555556984d00 brk(0x555556985000) = 0x555556985000 mprotect(0x7f04010da000, 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) = 0x7f03f8c2a000 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(0x7f03f8c2a000, 32768) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 [ 90.450455][ T5045] syz-executor338[5045]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set [ 90.464963][ T5045] loop0: detected capacity change from 0 to 64 [ 90.475691][ T5045] general protection fault, probably for non-canonical address 0xdffffc0000000008: 0000 [#1] PREEMPT SMP KASAN [ 90.487440][ T5045] KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] [ 90.495866][ T5045] CPU: 0 PID: 5045 Comm: syz-executor338 Not tainted 6.5.0-next-20230829-syzkaller #0 [ 90.505505][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 90.515568][ T5045] RIP: 0010:hfs_find_init+0x74/0x220 [ 90.520888][ T5045] 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 [ 90.540519][ T5045] RSP: 0018:ffffc900039bf4b0 EFLAGS: 00010202 [ 90.546608][ T5045] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 90.554594][ T5045] RDX: 0000000000000008 RSI: ffffffff825a3c95 RDI: ffffc900039bf528 [ 90.562585][ T5045] RBP: ffffc900039bf510 R08: 0000000000000004 R09: 0000000000000000 [ 90.570573][ T5045] R10: 0000000000000000 R11: ffffffff81dd6c25 R12: 0000000000000000 [ 90.578583][ T5045] R13: 0000000000000040 R14: ffff88802524814a R15: 0000000000000000 [ 90.586660][ T5045] FS: 0000555556963380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 90.595621][ T5045] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.602226][ T5045] CR2: 00000000005fdeb8 CR3: 0000000074232000 CR4: 00000000003506f0 [ 90.610226][ T5045] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.618212][ T5045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.626197][ T5045] Call Trace: [ 90.629489][ T5045] [ 90.632430][ T5045] ? show_regs+0x8f/0xa0 [ 90.636699][ T5045] ? die_addr+0x4f/0xd0 [ 90.640888][ T5045] ? exc_general_protection+0x154/0x230 [ 90.646463][ T5045] ? asm_exc_general_protection+0x26/0x30 [ 90.652217][ T5045] ? kasan_set_track+0x25/0x30 [ 90.657018][ T5045] ? hfs_find_init+0x15/0x220 [ 90.661716][ T5045] ? hfs_find_init+0x74/0x220 [ 90.666415][ T5045] hfs_ext_read_extent+0x19c/0x9d0 [ 90.671559][ T5045] ? lock_sync+0x190/0x190 [ 90.676010][ T5045] ? hfs_free_extents+0x2f0/0x2f0 [ 90.681065][ T5045] ? rcu_is_watching+0x12/0xb0 [ 90.685856][ T5045] ? reacquire_held_locks+0x4b0/0x4b0 [ 90.691267][ T5045] hfs_get_block+0x55b/0x820 [ 90.695896][ T5045] block_read_full_folio+0x3df/0xae0 [ 90.701224][ T5045] ? hfs_extend_file+0xb10/0xb10 [ 90.706190][ T5045] ? decrypt_bh+0x390/0x390 [ 90.710733][ T5045] ? folio_add_lru+0x458/0x7e0 [ 90.715524][ T5045] ? hfs_bmap+0x30/0x30 [ 90.719724][ T5045] filemap_read_folio+0xe9/0x2c0 [ 90.724689][ T5045] ? __folio_lock_killable+0x20/0x20 [ 90.729999][ T5045] ? __filemap_get_folio+0x31c/0xbc0 [ 90.735312][ T5045] ? hfs_btree_open+0x615/0x1050 [ 90.740289][ T5045] do_read_cache_folio+0x205/0x540 [ 90.745428][ T5045] ? hfs_bmap+0x30/0x30 [ 90.749619][ T5045] read_cache_page+0x5b/0x230 [ 90.754327][ T5045] hfs_btree_open+0x662/0x1050 [ 90.759123][ T5045] hfs_mdb_get+0x15d0/0x2020 [ 90.763750][ T5045] ? hfs_mdb_put+0x380/0x380 [ 90.768371][ T5045] ? lockdep_init_map_type+0x16d/0x7c0 [ 90.773880][ T5045] ? lockdep_init_map_type+0x16d/0x7c0 [ 90.779396][ T5045] ? __raw_spin_lock_init+0x3a/0x110 [ 90.784852][ T5045] hfs_fill_super+0xb1e/0x16e0 [ 90.789674][ T5045] ? hfs_remount+0x2c0/0x2c0 [ 90.794303][ T5045] ? vsnprintf+0x40f/0x1870 [ 90.798857][ T5045] ? lock_sync+0x190/0x190 [ 90.803307][ T5045] ? vsprintf+0x30/0x30 [ 90.807490][ T5045] ? bit_wait_timeout+0x160/0x160 [ 90.812546][ T5045] ? down_write+0x14f/0x200 [ 90.817078][ T5045] ? down_write_killable_nested+0x250/0x250 [ 90.823003][ T5045] ? sb_set_blocksize+0xf6/0x120 [ 90.827964][ T5045] ? hfs_remount+0x2c0/0x2c0 [ 90.832592][ T5045] ? mount_bdev+0x1f3/0x2e0 [ 90.837123][ T5045] mount_bdev+0x1f3/0x2e0 [ 90.841485][ T5045] ? sget+0x610/0x610 [ 90.845496][ T5045] ? apparmor_capable+0x1da/0x4e0 [ 90.850558][ T5045] ? hfs_statfs+0x4b0/0x4b0 [ 90.855095][ T5045] legacy_get_tree+0x109/0x220 [ 90.859902][ T5045] vfs_get_tree+0x8c/0x370 [ 90.864355][ T5045] path_mount+0x1492/0x1ed0 [ 90.868892][ T5045] ? kmem_cache_free+0xf0/0x480 [ 90.873781][ T5045] ? finish_automount+0xa50/0xa50 [ 90.878853][ T5045] ? putname+0x101/0x140 [ 90.883142][ T5045] __x64_sys_mount+0x293/0x310 [ 90.887950][ T5045] ? copy_mnt_ns+0xb60/0xb60 [ 90.892576][ T5045] ? _raw_spin_unlock_irq+0x2e/0x50 [ 90.897804][ T5045] ? ptrace_notify+0xf4/0x130 [ 90.902502][ T5045] do_syscall_64+0x38/0xb0 [ 90.906936][ T5045] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 90.912869][ T5045] RIP: 0033:0x7f04010688fa [ 90.917299][ T5045] 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 [ 90.937042][ T5045] RSP: 002b:00007ffd35852ee8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 90.945485][ T5045] RAX: ffffffffffffffda RBX: 00007ffd35852f00 RCX: 00007f04010688fa [ 90.953475][ T5045] RDX: 0000000020000000 RSI: 00000000200001c0 RDI: 00007ffd35852f00 [ 90.961480][ T5045] RBP: 0000000000000004 R08: 00007ffd35852f40 R09: 00000000000002d8 [ 90.969497][ T5045] R10: 000000000300041c R11: 0000000000000286 R12: 000000000300041c [ 90.977494][ T5045] R13: 00007ffd35852f40 R14: 0000000000000003 R15: 0000000000008000 [ 90.985508][ T5045] [ 90.988549][ T5045] Modules linked in: [ 90.992723][ T5045] ---[ end trace 0000000000000000 ]--- [ 90.998279][ T5045] RIP: 0010:hfs_find_init+0x74/0x220 [ 91.003624][ T5045] 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 [ 91.024490][ T5045] RSP: 0018:ffffc900039bf4b0 EFLAGS: 00010202 [ 91.030653][ T5045] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 91.038732][ T5045] RDX: 0000000000000008 RSI: ffffffff825a3c95 RDI: ffffc900039bf528 [ 91.046783][ T5045] RBP: ffffc900039bf510 R08: 0000000000000004 R09: 0000000000000000 [ 91.054784][ T5045] R10: 0000000000000000 R11: ffffffff81dd6c25 R12: 0000000000000000 [ 91.062831][ T5045] R13: 0000000000000040 R14: ffff88802524814a R15: 0000000000000000 [ 91.070881][ T5045] FS: 0000555556963380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 91.079925][ T5045] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.086589][ T5045] CR2: 00000000005fdeb8 CR3: 0000000074232000 CR4: 00000000003506f0 [ 91.094656][ T5045] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.102729][ T5045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.110798][ T5045] Kernel panic - not syncing: Fatal exception [ 91.117221][ T5045] Kernel Offset: disabled [ 91.121556][ T5045] Rebooting in 86400 seconds..