./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1688609199 <...> Warning: Permanently added '10.128.0.111' (ED25519) to the list of known hosts. execve("./syz-executor1688609199", ["./syz-executor1688609199"], 0x7ffc624958c0 /* 10 vars */) = 0 brk(NULL) = 0x555569ffa000 brk(0x555569ffad00) = 0x555569ffad00 arch_prctl(ARCH_SET_FS, 0x555569ffa380) = 0 set_tid_address(0x555569ffa650) = 5228 set_robust_list(0x555569ffa660, 24) = 0 rseq(0x555569ffaca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1688609199", 4096) = 28 getrandom("\xf2\x97\xd6\x5e\x27\xbe\x57\x93", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569ffad00 brk(0x55556a01bd00) = 0x55556a01bd00 brk(0x55556a01c000) = 0x55556a01c000 mprotect(0x7fc1628cd000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5229 attached , child_tidptr=0x555569ffa650) = 5229 [pid 5229] set_robust_list(0x555569ffa660, 24) = 0 [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setpgid(0, 0) = 0 [pid 5229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1000", 4) = 4 [pid 5229] close(3) = 0 executing program [pid 5229] write(1, "executing program\n", 18) = 18 [pid 5229] memfd_create("syzkaller", 0) = 3 [pid 5229] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc15a400000 [pid 5229] 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 [pid 5229] munmap(0x7fc15a400000, 138412032) = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5229] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5229] close(3) = 0 [pid 5229] close(4) = 0 [pid 5229] mkdir("./file1", 0777) = 0 [pid 5229] mount("/dev/loop0", "./file1", "hfs", 0, "") = 0 [pid 5229] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5229] chdir("./file1") = 0 [pid 5229] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5229] openat(AT_FDCWD, "blkio.bfq.io_service_bytes", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 72.029506][ T5229] loop0: detected capacity change from 0 to 64 [ 72.061453][ T5229] ================================================================== [ 72.069566][ T5229] BUG: KASAN: slab-out-of-bounds in hfs_bnode_read_key+0x314/0x450 [ 72.077491][ T5229] Write of size 94 at addr ffff888146303480 by task syz-executor168/5229 [ 72.085899][ T5229] [ 72.088262][ T5229] CPU: 1 UID: 0 PID: 5229 Comm: syz-executor168 Not tainted 6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0 [ 72.099377][ T5229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 72.109443][ T5229] Call Trace: [ 72.112722][ T5229] [ 72.115649][ T5229] dump_stack_lvl+0x241/0x360 [ 72.120339][ T5229] ? __pfx_dump_stack_lvl+0x10/0x10 [ 72.125570][ T5229] ? __pfx__printk+0x10/0x10 [ 72.130161][ T5229] ? _printk+0xd5/0x120 [ 72.134321][ T5229] ? __virt_addr_valid+0x183/0x530 [ 72.139473][ T5229] ? __virt_addr_valid+0x183/0x530 [ 72.144593][ T5229] print_report+0x169/0x550 [ 72.149113][ T5229] ? __virt_addr_valid+0x183/0x530 [ 72.154243][ T5229] ? __virt_addr_valid+0x183/0x530 [ 72.159360][ T5229] ? __virt_addr_valid+0x45f/0x530 [ 72.164478][ T5229] ? __phys_addr+0xba/0x170 [ 72.168997][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.174211][ T5229] kasan_report+0x143/0x180 [ 72.178817][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.184017][ T5229] kasan_check_range+0x282/0x290 [ 72.188978][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.194178][ T5229] __asan_memcpy+0x40/0x70 [ 72.198604][ T5229] hfs_bnode_read_key+0x314/0x450 [ 72.203637][ T5229] hfs_brec_insert+0x7f3/0xbd0 [ 72.208421][ T5229] ? __pfx_hfs_brec_insert+0x10/0x10 [ 72.213728][ T5229] hfs_cat_create+0x41d/0xa50 [ 72.218415][ T5229] ? __pfx_hfs_cat_create+0x10/0x10 [ 72.223627][ T5229] ? _raw_spin_unlock+0x28/0x50 [ 72.228490][ T5229] ? hfs_new_inode+0x86e/0xaf0 [ 72.233266][ T5229] hfs_mkdir+0x6c/0xe0 [ 72.237358][ T5229] vfs_mkdir+0x2f9/0x4f0 [ 72.241626][ T5229] do_mkdirat+0x264/0x3a0 [ 72.245966][ T5229] ? __might_fault+0xaa/0x120 [ 72.250675][ T5229] ? __pfx_do_mkdirat+0x10/0x10 [ 72.255550][ T5229] ? strncpy_from_user+0x131/0x250 [ 72.260678][ T5229] ? getname_flags+0x1e3/0x540 [ 72.265480][ T5229] __x64_sys_mkdir+0x6c/0x80 [ 72.270081][ T5229] do_syscall_64+0xf3/0x230 [ 72.274592][ T5229] ? clear_bhb_loop+0x35/0x90 [ 72.279295][ T5229] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.285213][ T5229] RIP: 0033:0x7fc162859a99 [ 72.289634][ T5229] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 72.310120][ T5229] RSP: 002b:00007ffc9051b6e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 72.318541][ T5229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc162859a99 [ 72.326518][ T5229] RDX: 00007fc162859a99 RSI: 0000000000000000 RDI: 0000000020000300 [ 72.334588][ T5229] RBP: 00007fc1628cd5f0 R08: 0000555569ffb4c0 R09: 0000555569ffb4c0 [ 72.342568][ T5229] R10: 00000000000002b3 R11: 0000000000000246 R12: 00007ffc9051b710 [ 72.350540][ T5229] R13: 00007ffc9051b938 R14: 431bde82d7b634db R15: 00007fc1628a203b [ 72.358525][ T5229] [ 72.361545][ T5229] [ 72.363870][ T5229] Allocated by task 5229: [ 72.368195][ T5229] kasan_save_track+0x3f/0x80 [ 72.372883][ T5229] __kasan_kmalloc+0x98/0xb0 [ 72.377497][ T5229] __kmalloc_noprof+0x1fc/0x400 [ 72.382435][ T5229] hfs_find_init+0x90/0x1f0 [ 72.386945][ T5229] hfs_cat_create+0x182/0xa50 [ 72.391627][ T5229] hfs_mkdir+0x6c/0xe0 [ 72.395702][ T5229] vfs_mkdir+0x2f9/0x4f0 [ 72.399949][ T5229] do_mkdirat+0x264/0x3a0 [ 72.404282][ T5229] __x64_sys_mkdir+0x6c/0x80 [ 72.408907][ T5229] do_syscall_64+0xf3/0x230 [ 72.413415][ T5229] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.419318][ T5229] [ 72.421640][ T5229] The buggy address belongs to the object at ffff888146303480 [ 72.421640][ T5229] which belongs to the cache kmalloc-96 of size 96 [ 72.435517][ T5229] The buggy address is located 0 bytes inside of [ 72.435517][ T5229] allocated 78-byte region [ffff888146303480, ffff8881463034ce) [ 72.449397][ T5229] [ 72.451728][ T5229] The buggy address belongs to the physical page: [ 72.458148][ T5229] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x146303 [ 72.467000][ T5229] anon flags: 0x57ff00000000000(node=1|zone=2|lastcpupid=0x7ff) [ 72.474638][ T5229] page_type: f5(slab) [ 72.478624][ T5229] raw: 057ff00000000000 ffff88801ac41280 ffffea00050dd700 dead000000000005 [ 72.487217][ T5229] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 72.495883][ T5229] page dumped because: kasan: bad access detected [ 72.502304][ T5229] page_owner tracks the page as allocated [ 72.508020][ T5229] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 12056148846, free_ts 0 [ 72.525646][ T5229] post_alloc_hook+0x1f3/0x230 [ 72.530424][ T5229] get_page_from_freelist+0x3039/0x3180 [ 72.535993][ T5229] __alloc_pages_noprof+0x292/0x710 [ 72.541198][ T5229] alloc_pages_mpol_noprof+0x3e8/0x680 [ 72.546696][ T5229] alloc_slab_page+0x6a/0x120 [ 72.551384][ T5229] allocate_slab+0x5a/0x2f0 [ 72.555893][ T5229] ___slab_alloc+0xcd1/0x14b0 [ 72.560577][ T5229] __slab_alloc+0x58/0xa0 [ 72.565043][ T5229] __kmalloc_cache_noprof+0x1d5/0x2c0 [ 72.570420][ T5229] usb_hub_create_port_device+0xc8/0xc10 [ 72.576066][ T5229] hub_probe+0x2503/0x3640 [ 72.580492][ T5229] usb_probe_interface+0x645/0xbb0 [ 72.585606][ T5229] really_probe+0x2b8/0xad0 [ 72.590115][ T5229] __driver_probe_device+0x1a2/0x390 [ 72.595404][ T5229] driver_probe_device+0x50/0x430 [ 72.600432][ T5229] __device_attach_driver+0x2d6/0x530 [ 72.605813][ T5229] page_owner free stack trace missing [ 72.611189][ T5229] [ 72.613513][ T5229] Memory state around the buggy address: [ 72.619143][ T5229] ffff888146303380: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc [ 72.627232][ T5229] ffff888146303400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 72.635292][ T5229] >ffff888146303480: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc [ 72.643358][ T5229] ^ [ 72.649783][ T5229] ffff888146303500: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 72.657851][ T5229] ffff888146303580: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 72.665916][ T5229] ================================================================== [ 72.674468][ T5229] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 72.681688][ T5229] CPU: 1 UID: 0 PID: 5229 Comm: syz-executor168 Not tainted 6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0 [ 72.692799][ T5229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 72.702857][ T5229] Call Trace: [ 72.706140][ T5229] [ 72.709077][ T5229] dump_stack_lvl+0x241/0x360 [ 72.713780][ T5229] ? __pfx_dump_stack_lvl+0x10/0x10 [ 72.718988][ T5229] ? __pfx__printk+0x10/0x10 [ 72.723582][ T5229] ? preempt_schedule+0xe1/0xf0 [ 72.728460][ T5229] ? vscnprintf+0x5d/0x90 [ 72.732799][ T5229] panic+0x349/0x880 [ 72.736701][ T5229] ? check_panic_on_warn+0x21/0xb0 [ 72.741817][ T5229] ? __pfx_panic+0x10/0x10 [ 72.746241][ T5229] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 72.752241][ T5229] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 72.758583][ T5229] ? print_report+0x502/0x550 [ 72.763304][ T5229] check_panic_on_warn+0x86/0xb0 [ 72.768255][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.773459][ T5229] end_report+0x77/0x160 [ 72.777716][ T5229] kasan_report+0x154/0x180 [ 72.782235][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.787444][ T5229] kasan_check_range+0x282/0x290 [ 72.792423][ T5229] ? hfs_bnode_read_key+0x314/0x450 [ 72.797626][ T5229] __asan_memcpy+0x40/0x70 [ 72.802052][ T5229] hfs_bnode_read_key+0x314/0x450 [ 72.807082][ T5229] hfs_brec_insert+0x7f3/0xbd0 [ 72.811861][ T5229] ? __pfx_hfs_brec_insert+0x10/0x10 [ 72.817158][ T5229] hfs_cat_create+0x41d/0xa50 [ 72.821846][ T5229] ? __pfx_hfs_cat_create+0x10/0x10 [ 72.827058][ T5229] ? _raw_spin_unlock+0x28/0x50 [ 72.831919][ T5229] ? hfs_new_inode+0x86e/0xaf0 [ 72.836712][ T5229] hfs_mkdir+0x6c/0xe0 [ 72.840817][ T5229] vfs_mkdir+0x2f9/0x4f0 [ 72.845078][ T5229] do_mkdirat+0x264/0x3a0 [ 72.849430][ T5229] ? __might_fault+0xaa/0x120 [ 72.854167][ T5229] ? __pfx_do_mkdirat+0x10/0x10 [ 72.859043][ T5229] ? strncpy_from_user+0x131/0x250 [ 72.864376][ T5229] ? getname_flags+0x1e3/0x540 [ 72.869929][ T5229] __x64_sys_mkdir+0x6c/0x80 [ 72.874533][ T5229] do_syscall_64+0xf3/0x230 [ 72.879043][ T5229] ? clear_bhb_loop+0x35/0x90 [ 72.883724][ T5229] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.889629][ T5229] RIP: 0033:0x7fc162859a99 [ 72.894049][ T5229] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 72.913661][ T5229] RSP: 002b:00007ffc9051b6e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 72.922082][ T5229] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc162859a99 [ 72.930054][ T5229] RDX: 00007fc162859a99 RSI: 0000000000000000 RDI: 0000000020000300 [ 72.938025][ T5229] RBP: 00007fc1628cd5f0 R08: 0000555569ffb4c0 R09: 0000555569ffb4c0 [ 72.946000][ T5229] R10: 00000000000002b3 R11: 0000000000000246 R12: 00007ffc9051b710 [ 72.954058][ T5229] R13: 00007ffc9051b938 R14: 431bde82d7b634db R15: 00007fc1628a203b [ 72.962127][ T5229] [ 72.965473][ T5229] Kernel Offset: disabled [ 72.969826][ T5229] Rebooting in 86400 seconds..