ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor2197690396 <...> Warning: Permanently added '10.128.0.96' (ED25519) to the list of known hosts. execve("ci2-android-6-12-rust/syz-executor2197690396", ["ci2-android-6-12-rust/syz-executor2197690396"], 0x7fff80f0d440 /* 10 vars */) = 0 brk(NULL) = 0x555568856000 brk(0x555568856d40) = 0x555568856d40 arch_prctl(ARCH_SET_FS, 0x5555688563c0) = 0 set_tid_address(0x555568856690) = 312 set_robust_list(0x5555688566a0, 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-executor2197690396", 4096) = 50 getrandom("\x63\x26\x38\xf4\xba\xa5\xed\x9b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568856d40 brk(0x555568877d40) = 0x555568877d40 brk(0x555568878000) = 0x555568878000 mprotect(0x7fd0a4448000, 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 executing program 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/c_srate", O_WRONLY) = 3 [ 30.919252][ T36] audit: type=1400 audit(1785480222.349:64): avc: denied { execmem } for pid=312 comm="syz-executor219" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 30.922281][ T36] audit: type=1400 audit(1785480222.349:65): avc: denied { mounton } for pid=312 comm="syz-executor219" path="/root/config" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 30.926042][ T36] audit: type=1400 audit(1785480222.349:66): avc: denied { mount } for pid=312 comm="syz-executor219" name="/" dev="configfs" ino=2485 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 30.926570][ T312] ================================================================== [ 30.929397][ T36] audit: type=1400 audit(1785480222.349:67): avc: denied { search } for pid=312 comm="syz-executor219" name="/" dev="configfs" ino=2485 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 30.930268][ T312] BUG: KASAN: invalid-free in f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930307][ T312] Free of addr ffff88811e3bf206 by task syz-executor219/312 [ 30.930319][ T312] [ 30.930331][ T312] CPU: 1 UID: 0 PID: 312 Comm: syz-executor219 Not tainted syzkaller #0 91781886e4a1baa38ce9d8cd537274748dd3a26f [ 30.930354][ T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 30.930373][ T312] Call Trace: [ 30.930379][ T312] [ 30.930386][ T312] __dump_stack+0x21/0x30 [ 30.930409][ T312] dump_stack_lvl+0x140/0x1c0 [ 30.930430][ T312] ? __cfi_dump_stack_lvl+0x10/0x10 [ 30.930454][ T312] print_address_description+0x71/0x210 [ 30.930479][ T312] print_report+0x4a/0x70 [ 30.930500][ T312] ? f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930522][ T312] kasan_report_invalid_free+0x11e/0x160 [ 30.930546][ T312] ? f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930568][ T312] ? f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930589][ T312] check_slab_allocation+0xdf/0xf0 [ 30.930611][ T312] __kasan_slab_pre_free+0x36/0x50 [ 30.930631][ T312] kfree+0xf8/0x440 [ 30.930646][ T312] ? f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930668][ T312] f_uac2_opts_c_srate_store+0x224/0x2b0 [ 30.930689][ T312] ? __cfi_f_uac2_opts_c_srate_store+0x10/0x10 [ 30.930710][ T312] ? down_read+0x7f/0xe0 [ 30.930732][ T312] ? __cfi_down_read+0x10/0x10 [ 30.930758][ T312] configfs_write_iter+0x32f/0x490 [ 30.930780][ T312] ? __cfi_f_uac2_opts_c_srate_store+0x10/0x10 [ 30.930802][ T312] vfs_write+0x762/0xfd0 [ 30.930821][ T312] ? __cfi_vfs_write+0x10/0x10 [ 30.930838][ T312] ? cgroup_update_frozen+0x160/0x980 [ 30.930860][ T312] ? ptrace_stop+0x6d6/0x8f0 [ 30.930880][ T312] ? __kasan_check_read+0x15/0x20 [ 30.930906][ T312] ksys_write+0x145/0x260 [ 30.930924][ T312] ? __cfi_ksys_write+0x10/0x10 [ 30.930942][ T312] ? __kasan_check_write+0x18/0x20 [ 30.930960][ T312] __x64_sys_write+0x7f/0x90 [ 30.930977][ T312] x64_sys_call+0x271c/0x2ee0 [ 30.930993][ T312] do_syscall_64+0x57/0xf0 [ 30.931013][ T312] ? clear_bhb_loop+0x50/0xa0 [ 30.931037][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 30.931060][ T312] RIP: 0033:0x7fd0a43b7cf9 [ 30.931080][ T312] 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 [ 30.931095][ T312] RSP: 002b:00007fffa010b258 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 30.931119][ T312] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fd0a43b7cf9 [ 30.931132][ T312] RDX: 000000000000006e RSI: 0000200000000280 RDI: 0000000000000003 [ 30.931144][ T312] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007fffa010b388 [ 30.931156][ T312] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa010b378 [ 30.931167][ T312] R13: 0000000000000002 R14: 00007fd0a4448ca0 R15: 0000000000000002 [ 30.931181][ T312] [ 30.931188][ T312] [ 30.933335][ T36] audit: type=1400 audit(1785480222.349:68): avc: denied { write } for pid=312 comm="syz-executor219" name="usb_gadget" dev="configfs" ino=2486 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 30.934447][ T312] Allocated by task 312: [ 30.935929][ T36] audit: type=1400 audit(1785480222.349:69): avc: denied { add_name } for pid=312 comm="syz-executor219" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 30.937379][ T312] kasan_save_track+0x3e/0x80 [ 30.938829][ T36] audit: type=1400 audit(1785480222.349:70): avc: denied { create } for pid=312 comm="syz-executor219" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 30.939331][ T312] kasan_save_alloc_info+0x3a/0x50 [ 30.939766][ T36] audit: type=1400 audit(1785480222.359:71): avc: denied { write } for pid=312 comm="syz-executor219" name="c_srate" dev="configfs" ino=1672 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 30.944065][ T312] __kasan_kmalloc+0x96/0xb0 [ 30.948765][ T36] audit: type=1400 audit(1785480222.359:72): avc: denied { open } for pid=312 comm="syz-executor219" path="/root/config/usb_gadget/g1/functions/uac2.usb0/c_srate" dev="configfs" ino=1672 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 30.953899][ T312] __kmalloc_node_track_caller_noprof+0x24e/0x4f0 [ 31.315765][ T312] kstrdup+0x4d/0x130 [ 31.319741][ T312] f_uac2_opts_c_srate_store+0x11e/0x2b0 [ 31.325356][ T312] configfs_write_iter+0x32f/0x490 [ 31.330448][ T312] vfs_write+0x762/0xfd0 [ 31.334696][ T312] ksys_write+0x145/0x260 [ 31.338998][ T312] __x64_sys_write+0x7f/0x90 [ 31.343564][ T312] x64_sys_call+0x271c/0x2ee0 [ 31.348221][ T312] do_syscall_64+0x57/0xf0 [ 31.352615][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 31.358517][ T312] [ 31.360818][ T312] The buggy address belongs to the object at ffff88811e3bf200 [ 31.360818][ T312] which belongs to the cache kmalloc-128 of size 128 [ 31.374892][ T312] The buggy address is located 6 bytes inside of [ 31.374892][ T312] 111-byte region [ffff88811e3bf200, ffff88811e3bf26f) [ 31.387988][ T312] [ 31.390309][ T312] The buggy address belongs to the physical page: [ 31.396701][ T312] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e3bf [ 31.405533][ T312] flags: 0x4000000000000000(zone=1) [ 31.410727][ T312] page_type: f5(slab) [ 31.414698][ T312] raw: 4000000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 31.423257][ T312] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 31.431812][ T312] page dumped because: kasan: bad access detected [ 31.438228][ T312] page_owner tracks the page as allocated [ 31.443918][ T312] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 143, tgid 143 (ip), ts 5397766210, free_ts 0 [ 31.461170][ T312] post_alloc_hook+0x37d/0x3b0 [ 31.465925][ T312] prep_new_page+0x2d/0x180 [ 31.470406][ T312] get_page_from_freelist+0x4aea/0x4ba0 [ 31.475934][ T312] __alloc_pages_noprof+0x35a/0x7e0 [ 31.481116][ T312] alloc_slab_page+0x6b/0x1e0 [ 31.485802][ T312] allocate_slab+0x69/0x430 [ 31.490282][ T312] ___slab_alloc+0x591/0x8c0 [ 31.494941][ T312] __kmalloc_cache_noprof+0x2cd/0x470 [ 31.500291][ T312] inet_alloc_ifa+0x5e/0x1c0 [ 31.504863][ T312] inetdev_event+0xb64/0x1240 [ 31.509523][ T312] notifier_call_chain+0x106/0x2b0 [ 31.514610][ T312] raw_notifier_call_chain+0x31/0x40 [ 31.519893][ T312] __dev_notify_flags+0x318/0x5a0 [ 31.524987][ T312] dev_change_flags+0xe7/0x1b0 [ 31.529731][ T312] devinet_ioctl+0x757/0x1af0 [ 31.534387][ T312] inet_ioctl+0x431/0x570 [ 31.538717][ T312] page_owner free stack trace missing [ 31.544062][ T312] [ 31.546366][ T312] Memory state around the buggy address: [ 31.551970][ T312] ffff88811e3bf100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.560011][ T312] ffff88811e3bf180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc write(3, "\x34\x34\x31\x46\x30\x2c\x34\xca\x26\x34\x83\x85\xce\x08\xa6\x47\xbd\x92\x67\x1b\xf5\x8e\xbf\x98\x5e\x2d\x6c\x66\xc4\x0d\x80\xe9\xed\x03\x5e\x90\x90\x94\x61\x6c\xac\x97\x1c\x79\x38\x92\x53\xa7\x9e\xfa\xe2\x74\xfe\xd6\xa6\xe8\x6a\x55\x71\x65\xdf\x7b\x12\x09\x76\x54\x0a\x63\x74\xe0\xbd\x54\x51\x54\xd5\xe4\x91\x3a\x5a\xab\x9c\x7c\x5e\x69\x18\x2f\x88\x46\x90\xb7\xbe\xf3\x58\x0c\xca\x69\x33\x6f\x21\xdf"..., 110) = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 31.568049][ T312] >ffff88811e3bf200: 00 00