ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor100056813 <...> Warning: Permanently added '10.128.0.90' (ED25519) to the list of known hosts. execve("ci2-android-6-12-rust/syz-executor100056813", ["ci2-android-6-12-rust/syz-executor100056813"], 0x7ffdc0216d20 /* 10 vars */) = 0 brk(NULL) = 0x55556111e000 brk(0x55556111ed40) = 0x55556111ed40 arch_prctl(ARCH_SET_FS, 0x55556111e3c0) = 0 set_tid_address(0x55556111e690) = 314 set_robust_list(0x55556111e6a0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-12-rust/syz-executor100056813", 4096) = 49 getrandom("\xe5\x01\xdd\x8b\x13\x1d\xe0\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556111ed40 brk(0x55556113fd40) = 0x55556113fd40 brk(0x555561140000) = 0x555561140000 mprotect(0x7f3774abf000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18) = 18 mkdir("config", 0777) = 0 mount(NULL, "config", "configfs", 0, NULL) = 0 mkdir("config/usb_gadget/g1", 0777) = 0 mkdir("config/usb_gadget/g1/functions/uac2.usb0", 0777) = 0 openat(AT_FDCWD, "config/usb_gadget/g1/functions/uac2.usb0/p_srate", O_WRONLY) = 3 executing program [ 31.119912][ T36] audit: type=1400 audit(1785351055.270:64): avc: denied { execmem } for pid=314 comm="syz-executor100" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 31.137350][ T314] ================================================================== [ 31.142699][ T36] audit: type=1400 audit(1785351055.270:65): avc: denied { mounton } for pid=314 comm="syz-executor100" path="/root/config" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 31.149140][ T314] BUG: KASAN: invalid-free in f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.174023][ T36] audit: type=1400 audit(1785351055.270:66): avc: denied { mount } for pid=314 comm="syz-executor100" name="/" dev="configfs" ino=2414 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 31.182027][ T314] Free of addr ffff8881211c1c8c by task syz-executor100/314 [ 31.182053][ T314] [ 31.182079][ T314] CPU: 1 UID: 0 PID: 314 Comm: syz-executor100 Not tainted syzkaller #0 0b31bef96cff8e44f9e14c4f768eb06c85e3b290 [ 31.182123][ T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 [ 31.182191][ T314] Call Trace: [ 31.182228][ T314] [ 31.182246][ T314] __dump_stack+0x21/0x30 [ 31.182362][ T314] dump_stack_lvl+0x140/0x1c0 [ 31.182438][ T314] ? __cfi_dump_stack_lvl+0x10/0x10 [ 31.182523][ T314] print_address_description+0x71/0x210 [ 31.182607][ T314] print_report+0x4a/0x70 [ 31.182708][ T314] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.182784][ T314] kasan_report_invalid_free+0x11e/0x160 [ 31.182866][ T314] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.182949][ T314] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.183014][ T314] check_slab_allocation+0xdf/0xf0 [ 31.183086][ T314] __kasan_slab_pre_free+0x36/0x50 [ 31.183151][ T314] kfree+0xf8/0x440 [ 31.183190][ T314] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.183264][ T314] f_uac2_opts_p_srate_store+0x224/0x2b0 [ 31.183336][ T314] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 31.183396][ T314] ? down_read+0x7f/0xe0 [ 31.183472][ T314] ? __cfi_down_read+0x10/0x10 [ 31.183556][ T314] configfs_write_iter+0x32f/0x490 [ 31.183631][ T314] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 31.183718][ T314] vfs_write+0x762/0xfd0 [ 31.183846][ T314] ? __cfi_vfs_write+0x10/0x10 [ 31.183901][ T314] ? cgroup_update_frozen+0x160/0x980 [ 31.183979][ T314] ? ptrace_stop+0x6d6/0x8f0 [ 31.184051][ T314] ? __kasan_check_read+0x15/0x20 [ 31.184112][ T314] ksys_write+0x145/0x260 [ 31.184174][ T314] ? __cfi_ksys_write+0x10/0x10 [ 31.184230][ T314] ? __kasan_check_write+0x18/0x20 [ 31.184293][ T314] __x64_sys_write+0x7f/0x90 [ 31.184356][ T314] x64_sys_call+0x271c/0x2ee0 [ 31.184412][ T314] do_syscall_64+0x57/0xf0 [ 31.184468][ T314] ? clear_bhb_loop+0x50/0xa0 [ 31.184543][ T314] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 31.184618][ T314] RIP: 0033:0x7f3774a2ecb9 [ 31.184680][ T314] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 31.184732][ T314] RSP: 002b:00007ffc67498668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 31.184805][ T314] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f3774a2ecb9 [ 31.184849][ T314] RDX: 0000000000000101 RSI: 0000200000000d40 RDI: 0000000000000003 [ 31.184883][ T314] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffc67498798 [ 31.184924][ T314] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc67498788 [ 31.184964][ T314] R13: 0000000000000002 R14: 00007f3774abfca0 R15: 0000000000000002 [ 31.185007][ T314] [ 31.185029][ T314] [ 31.207818][ T36] audit: type=1400 audit(1785351055.270:67): avc: denied { search } for pid=314 comm="syz-executor100" name="/" dev="configfs" ino=2414 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.214339][ T314] Allocated by task 314: [ 31.226119][ T36] audit: type=1400 audit(1785351055.280:68): avc: denied { write } for pid=314 comm="syz-executor100" name="usb_gadget" dev="configfs" ino=2415 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.228921][ T314] kasan_save_track+0x3e/0x80 [ 31.240129][ T36] audit: type=1400 audit(1785351055.280:69): avc: denied { add_name } for pid=314 comm="syz-executor100" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.242760][ T314] kasan_save_alloc_info+0x3a/0x50 [ 31.246618][ T36] audit: type=1400 audit(1785351055.280:70): avc: denied { create } for pid=314 comm="syz-executor100" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 31.250359][ T314] __kasan_kmalloc+0x96/0xb0 [ 31.256107][ T36] audit: type=1400 audit(1785351055.290:71): avc: denied { write } for pid=314 comm="syz-executor100" name="p_srate" dev="configfs" ino=1696 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 31.260871][ T314] __kmalloc_node_track_caller_noprof+0x24e/0x4f0 [ 31.267386][ T36] audit: type=1400 audit(1785351055.290:72): avc: denied { open } for pid=314 comm="syz-executor100" path="/root/config/usb_gadget/g1/functions/uac2.usb0/p_srate" dev="configfs" ino=1696 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 31.270977][ T314] kstrdup+0x4d/0x130 [ 31.668727][ T314] f_uac2_opts_p_srate_store+0x11e/0x2b0 [ 31.674444][ T314] configfs_write_iter+0x32f/0x490 [ 31.679609][ T314] vfs_write+0x762/0xfd0 [ 31.683971][ T314] ksys_write+0x145/0x260 [ 31.688459][ T314] __x64_sys_write+0x7f/0x90 [ 31.693413][ T314] x64_sys_call+0x271c/0x2ee0 [ 31.698202][ T314] do_syscall_64+0x57/0xf0 [ 31.702828][ T314] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 31.709626][ T314] [ 31.711980][ T314] The buggy address belongs to the object at ffff8881211c1c80 [ 31.711980][ T314] which belongs to the cache kmalloc-32 of size 32 [ 31.726945][ T314] The buggy address is located 12 bytes inside of [ 31.726945][ T314] 18-byte region [ffff8881211c1c80, ffff8881211c1c92) [ 31.741634][ T314] [ 31.744129][ T314] The buggy address belongs to the physical page: [ 31.750884][ T314] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1211c1 [ 31.760896][ T314] flags: 0x4000000000000000(zone=1) [ 31.766555][ T314] page_type: f5(slab) [ 31.770938][ T314] raw: 4000000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 31.780083][ T314] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 31.789057][ T314] page dumped because: kasan: bad access detected [ 31.796430][ T314] page_owner tracks the page as allocated [ 31.802955][ T314] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP), pid 312, tgid 312 (strace-static-x), ts 31088970722, free_ts 30964814854 [ 31.822907][ T314] post_alloc_hook+0x37d/0x3b0 [ 31.827983][ T314] prep_new_page+0x2d/0x180 [ 31.833308][ T314] get_page_from_freelist+0x4aea/0x4ba0 [ 31.839083][ T314] __alloc_pages_noprof+0x35a/0x7e0 [ 31.844756][ T314] alloc_slab_page+0x6b/0x1e0 [ 31.849756][ T314] allocate_slab+0x69/0x430 [ 31.854301][ T314] ___slab_alloc+0x591/0x8c0 [ 31.859391][ T314] __kmalloc_cache_noprof+0x2cd/0x470 [ 31.865071][ T314] kmem_cache_free+0x18d/0x4f0 [ 31.869871][ T314] __fput+0x71e/0xa30 [ 31.874171][ T314] __fput_sync+0x4a/0x70 [ 31.878788][ T314] __se_sys_close+0x172/0x1f0 [ 31.883710][ T314] __x64_sys_close+0x3c/0x60 [ 31.889680][ T314] x64_sys_call+0x2560/0x2ee0 [ 31.894731][ T314] do_syscall_64+0x57/0xf0 [ 31.899704][ T314] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 31.906358][ T314] page last free pid 20 tgid 20 stack trace: [ 31.912931][ T314] free_unref_page+0xbb8/0xf70 [ 31.918227][ T314] __free_pages+0x6b/0x3b0 [ 31.922754][ T314] tlb_remove_table_rcu+0x2b2/0x3d0 [ 31.928518][ T314] rcu_do_batch+0x56a/0xcb0 [ 31.933409][ T314] rcu_nocb_cb_kthread+0x533/0xb60 [ 31.939106][ T314] kthread+0x2c7/0x360 [ 31.943298][ T314] ret_from_fork+0x67/0xa0 [ 31.948083][ T314] ret_from_fork_asm+0x1a/0x30 [ 31.952868][ T314] [ 31.955892][ T314] Memory state around the buggy address: [ 31.962204][ T314] ffff8881211c1b80: fc fc fc fc fc fc fc fc fa fb fb fb fc fc fc fc [ 31.971159][ T314] ffff8881211c1c00: 00 00 00 fc fc fc fc fc 00 00 00 00 fc fc fc fc [ 31.979694][ T314] >ffff8881211c1c80: 00 00 02 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.988342][ T314] ^ [ 31.993062][ T314] ffff8881211c1d00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 32.001772][ T314] ffff8881211c1d80: fc fc fc fc fc fc fc fc fa fb fb fb fc fc fc fc [ 32.010450][ T314] ================================================================== write(3, "\x34\x34\x31\x30\x1d\x44\x34\x38\x30\x30\x30\x2c\x39\x36\x30\x30\x30\x00\xb8\x6e\x04\x84\xd7\xd8\x27\xd3\xb9\xa9\x1a\xed\x13\xfd\x06\x63\x9e\x0c\xa6\xb2\x06\x12\x5f\xd7\x8b\xe6\x87\xd5\x5c\xe0\xd7\x67\xf5\x4f\x6f\x28\x0a\x37\x00\x80\x6c\x26\x3b\xcc\xc3\xfb\x66\x07\x6e\x31\xca\x48\x6f\xe3\x82\x23\x41\x67\x1a\xc4\x7a\xbf\x01\x0a\x3f\xe2\xc2\x80\x81\x5c\x5d\x44\x70\xf0\xc8\xcf\x38\x42\x02\x00\x00\x00"..., 257) = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 32.019943][ T314] Disabling lock debugg