ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor2606583744 <...> Warning: Permanently added '10.128.0.136' (ED25519) to the list of known hosts. execve("ci2-android-6-12-rust/syz-executor2606583744", ["ci2-android-6-12-rust/syz-executor2606583744"], 0x7fffa8f73f50 /* 10 vars */) = 0 brk(NULL) = 0x55557b769000 brk(0x55557b769d40) = 0x55557b769d40 arch_prctl(ARCH_SET_FS, 0x55557b7693c0) = 0 set_tid_address(0x55557b769690) = 312 set_robust_list(0x55557b7696a0, 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-executor2606583744", 4096) = 50 getrandom("\xb1\xfa\xf4\xd5\x56\xab\xd7\x6c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557b769d40 brk(0x55557b78ad40) = 0x55557b78ad40 brk(0x55557b78b000) = 0x55557b78b000 mprotect(0x7fa4768f0000, 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 mkdirat(AT_FDCWD, "./myconfig", 0777) = 0 mount(NULL, "./myconfig", "configfs", 0, NULL) = 0 mkdirat(AT_FDCWD, "./myconfig/usb_gadget/g1", 0777) = 0 mkdirat(AT_FDCWD, "./myconfig/usb_gadget/g1/functions/uac2.usb0", 0777) = 0 openat(AT_FDCWD, "./myconfig/usb_gadget/g1/functions/uac2.usb0/p_srate", O_WRONLY) = 3 [ 32.724088][ T36] audit: type=1400 audit(1787599411.690:64): avc: denied { execmem } for pid=312 comm="syz-executor260" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 32.744890][ T312] ================================================================== [ 32.746892][ T36] audit: type=1400 audit(1787599411.700:65): avc: denied { mounton } for pid=312 comm="syz-executor260" path="/root/myconfig" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 32.753012][ T312] BUG: KASAN: invalid-free in f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.780239][ T36] audit: type=1400 audit(1787599411.700:66): avc: denied { mount } for pid=312 comm="syz-executor260" name="/" dev="configfs" ino=1102 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 32.784003][ T312] Free of addr ffff88810e665792 by task syz-executor260/312 [ 32.807627][ T36] audit: type=1400 audit(1787599411.700:67): avc: denied { search } for pid=312 comm="syz-executor260" name="/" dev="configfs" ino=1102 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 32.814142][ T312] [ 32.814180][ T312] CPU: 0 UID: 0 PID: 312 Comm: syz-executor260 Not tainted syzkaller #0 f2f9be0cb5819eb91f3cdfab905957d5e4b40d7b [ 32.814287][ T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 32.814333][ T312] Call Trace: [ 32.814361][ T312] [ 32.814383][ T312] __dump_stack+0x21/0x30 [ 32.814489][ T312] dump_stack_lvl+0x140/0x1c0 [ 32.814570][ T312] ? __cfi_dump_stack_lvl+0x10/0x10 [ 32.814655][ T312] print_address_description+0x71/0x210 [ 32.814737][ T312] print_report+0x4a/0x70 [ 32.814809][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.814891][ T312] kasan_report_invalid_free+0x11e/0x160 [ 32.814960][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.815035][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.815107][ T312] check_slab_allocation+0xdf/0xf0 [ 32.815179][ T312] __kasan_slab_pre_free+0x36/0x50 [ 32.815252][ T312] kfree+0xf8/0x440 [ 32.815305][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.815408][ T312] f_uac2_opts_p_srate_store+0x224/0x2b0 [ 32.815549][ T312] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 32.815709][ T312] ? down_read+0x7f/0xe0 [ 32.815784][ T312] ? __cfi_down_read+0x10/0x10 [ 32.815847][ T312] configfs_write_iter+0x32f/0x490 [ 32.815921][ T312] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 32.815988][ T312] vfs_write+0x75f/0xfd0 [ 32.816052][ T312] ? __cfi_vfs_write+0x10/0x10 [ 32.816112][ T312] ? cgroup_update_frozen+0x160/0x980 [ 32.816193][ T312] ? ptrace_stop+0x6d6/0x8f0 [ 32.816266][ T312] ? __kasan_check_read+0x15/0x20 [ 32.816321][ T312] ksys_write+0x145/0x260 [ 32.816383][ T312] ? __cfi_ksys_write+0x10/0x10 [ 32.816466][ T312] ? __kasan_check_write+0x18/0x20 [ 32.816528][ T312] __x64_sys_write+0x7f/0x90 [ 32.816590][ T312] x64_sys_call+0x271c/0x2ee0 [ 32.816643][ T312] do_syscall_64+0x57/0xf0 [ 32.816730][ T312] ? clear_bhb_loop+0x50/0xa0 [ 32.816790][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 32.816874][ T312] RIP: 0033:0x7fa47685fcf9 [ 32.816934][ 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 [ 32.816979][ T312] RSP: 002b:00007fff0ef71198 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 32.817057][ T312] RAX: ffffffffffffffda RBX: 666e6f63796d2f2e RCX: 00007fa47685fcf9 [ 32.817120][ T312] RDX: 000000000000002e RSI: 0000200000000440 RDI: 0000000000000003 [ 32.817160][ T312] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007fff0ef712c8 [ 32.817200][ T312] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff0ef712b8 [ 32.817240][ T312] R13: 0000000000000002 R14: 00007fa4768f0ca0 R15: 0000000000000002 [ 32.817284][ T312] [ 32.817305][ T312] [ 32.842864][ T36] audit: type=1400 audit(1787599411.700:68): avc: denied { write } for pid=312 comm="syz-executor260" name="usb_gadget" dev="configfs" ino=1103 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 32.850776][ T312] Allocated by task 312: [ 32.850795][ T312] kasan_save_track+0x3e/0x80 [ 32.850833][ T312] kasan_save_alloc_info+0x3a/0x50 [ 32.850851][ T312] __kasan_kmalloc+0x96/0xb0 [ 32.850876][ T312] __kmalloc_node_track_caller_noprof+0x24e/0x4f0 [ 32.863127][ T36] audit: type=1400 audit(1787599411.700:69): avc: denied { add_name } for pid=312 comm="syz-executor260" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 32.864246][ T312] kstrdup+0x4d/0x130 [ 32.867794][ T36] audit: type=1400 audit(1787599411.700:70): avc: denied { create } for pid=312 comm="syz-executor260" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 32.871542][ T312] f_uac2_opts_p_srate_store+0x11e/0x2b0 [ 32.876913][ T36] audit: type=1400 audit(1787599411.710:71): avc: denied { write } for pid=312 comm="syz-executor260" name="p_srate" dev="configfs" ino=3105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 32.881517][ T312] configfs_write_iter+0x32f/0x490 [ 32.887676][ T36] audit: type=1400 audit(1787599411.710:72): avc: denied { open } for pid=312 comm="syz-executor260" path="/root/myconfig/usb_gadget/g1/functions/uac2.usb0/p_srate" dev="configfs" ino=3105 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 32.891407][ T312] vfs_write+0x75f/0xfd0 [ 33.264901][ T312] ksys_write+0x145/0x260 [ 33.269253][ T312] __x64_sys_write+0x7f/0x90 [ 33.273851][ T312] x64_sys_call+0x271c/0x2ee0 [ 33.278609][ T312] do_syscall_64+0x57/0xf0 [ 33.283047][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 33.288960][ T312] [ 33.291295][ T312] The buggy address belongs to the object at ffff88810e665780 [ 33.291295][ T312] which belongs to the cache kmalloc-64 of size 64 [ 33.305173][ T312] The buggy address is located 18 bytes inside of [ 33.305173][ T312] 47-byte region [ffff88810e665780, ffff88810e6657af) [ 33.318288][ T312] [ 33.320612][ T312] The buggy address belongs to the physical page: [ 33.327033][ T312] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10e665 [ 33.335882][ T312] flags: 0x4000000000000000(zone=1) [ 33.341074][ T312] page_type: f5(slab) [ 33.345083][ T312] raw: 4000000000000000 ffff8881000418c0 dead000000000100 dead000000000122 [ 33.353684][ T312] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 33.362274][ T312] page dumped because: kasan: bad access detected [ 33.368703][ T312] page_owner tracks the page as allocated [ 33.374451][ T312] 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 2615739498, free_ts 0 [ 33.392107][ T312] post_alloc_hook+0x37d/0x3b0 [ 33.396898][ T312] prep_new_page+0x2d/0x180 [ 33.401482][ T312] get_page_from_freelist+0x4aea/0x4ba0 [ 33.407443][ T312] __alloc_pages_noprof+0x35a/0x7e0 [ 33.412870][ T312] alloc_slab_page+0x6b/0x1e0 [ 33.417714][ T312] allocate_slab+0x69/0x430 [ 33.422272][ T312] ___slab_alloc+0x591/0x8c0 [ 33.426899][ T312] __kmalloc_noprof+0x2fc/0x510 [ 33.431769][ T312] kobject_get_path+0xc3/0x2d0 [ 33.436545][ T312] kobject_uevent_env+0x2bc/0x7e0 [ 33.441580][ T312] kobject_uevent+0x21/0x40 [ 33.446100][ T312] device_add+0x599/0xbf0 [ 33.450440][ T312] platform_device_add+0x464/0x6c0 [ 33.455569][ T312] platform_device_register_full+0x46f/0x570 [ 33.461556][ T312] acpi_create_platform_device+0x5f0/0x6d0 [ 33.467377][ T312] acpi_default_enumeration+0x5e/0xc0 [ 33.472755][ T312] page_owner free stack trace missing [ 33.478121][ T312] [ 33.480458][ T312] Memory state around the buggy address: [ 33.486098][ T312] ffff88810e665680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 33.494158][ T312] ffff88810e665700: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc [ 33.502221][ T312] >ffff88810e665780: 00 00 00 00 00 07 fc fc fc fc fc fc fc fc fc fc [ 33.510286][ T312] ^ [ 33.514874][ T312] ffff88810e665800: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc write(3, "\x34\x34\x31\x30\x30\x2c\x34\x38\x30\x30\xec\x20\x38\x38\x32\x30\x30\x2c\x39\x36\x30\x30\x30\x2c\x31\x37\x36\x34\x30\x30\x2c\x31\x79\x32\x30\x30\x30\x2c\x33\x35\x32\x38\x30\x30\x2c\x33", 46) = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 33.522936][ T312] ffff88810e665880: 00 00 00 00