ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor3955826553 <...> Warning: Permanently added '10.128.1.50' (ED25519) to the list of known hosts. execve("ci2-android-6-12-rust/syz-executor3955826553", ["ci2-android-6-12-rust/syz-executor3955826553"], 0x7ffe2ccdbdd0 /* 10 vars */) = 0 brk(NULL) = 0x55556052f000 brk(0x55556052fd40) = 0x55556052fd40 arch_prctl(ARCH_SET_FS, 0x55556052f3c0) = 0 set_tid_address(0x55556052f690) = 312 set_robust_list(0x55556052f6a0, 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-executor3955826553", 4096) = 50 getrandom("\xef\x0f\x89\x63\xde\x8f\x6a\x85", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556052fd40 brk(0x555560550d40) = 0x555560550d40 brk(0x555560551000) = 0x555560551000 mprotect(0x7f780dcf8000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 executing program 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 [ 21.690001][ T36] audit: type=1400 audit(1785353273.149:64): avc: denied { execmem } for pid=312 comm="syz-executor395" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.692910][ T312] ================================================================== [ 21.712031][ T36] audit: type=1400 audit(1785353273.149:65): avc: denied { mounton } for pid=312 comm="syz-executor395" path="/root/config" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.717475][ T312] BUG: KASAN: invalid-free in f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.740753][ T36] audit: type=1400 audit(1785353273.149:66): avc: denied { mount } for pid=312 comm="syz-executor395" name="/" dev="configfs" ino=784 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 21.748480][ T312] Free of addr ffff888105b9a18c by task syz-executor395/312 [ 21.771596][ T36] audit: type=1400 audit(1785353273.149:67): avc: denied { search } for pid=312 comm="syz-executor395" name="/" dev="configfs" ino=784 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 21.778447][ T312] [ 21.778469][ T312] CPU: 0 UID: 0 PID: 312 Comm: syz-executor395 Not tainted syzkaller #0 0b31bef96cff8e44f9e14c4f768eb06c85e3b290 [ 21.778493][ T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 21.778512][ T312] Call Trace: [ 21.778519][ T312] [ 21.778525][ T312] __dump_stack+0x21/0x30 [ 21.778555][ T312] dump_stack_lvl+0x140/0x1c0 [ 21.778579][ T312] ? __cfi_dump_stack_lvl+0x10/0x10 [ 21.778604][ T312] print_address_description+0x71/0x210 [ 21.778628][ T312] print_report+0x4a/0x70 [ 21.778651][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.778672][ T312] kasan_report_invalid_free+0x11e/0x160 [ 21.778696][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.778717][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.778737][ T312] check_slab_allocation+0xdf/0xf0 [ 21.778758][ T312] __kasan_slab_pre_free+0x36/0x50 [ 21.778779][ T312] kfree+0xf8/0x440 [ 21.778795][ T312] ? f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.778816][ T312] f_uac2_opts_p_srate_store+0x224/0x2b0 [ 21.778837][ T312] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 21.778858][ T312] ? down_read+0x7f/0xe0 [ 21.778882][ T312] ? __cfi_down_read+0x10/0x10 [ 21.778907][ T312] configfs_write_iter+0x32f/0x490 [ 21.778928][ T312] ? __cfi_f_uac2_opts_p_srate_store+0x10/0x10 [ 21.778949][ T312] vfs_write+0x762/0xfd0 [ 21.778968][ T312] ? __cfi_vfs_write+0x10/0x10 [ 21.778985][ T312] ? cgroup_update_frozen+0x160/0x980 [ 21.779027][ T312] ? ptrace_stop+0x6d6/0x8f0 [ 21.779047][ T312] ? __kasan_check_read+0x15/0x20 [ 21.779065][ T312] ksys_write+0x145/0x260 [ 21.779083][ T312] ? __cfi_ksys_write+0x10/0x10 [ 21.779101][ T312] ? __kasan_check_write+0x18/0x20 [ 21.779119][ T312] __x64_sys_write+0x7f/0x90 [ 21.779137][ T312] x64_sys_call+0x271c/0x2ee0 [ 21.779153][ T312] do_syscall_64+0x57/0xf0 [ 21.779171][ T312] ? clear_bhb_loop+0x50/0xa0 [ 21.779195][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 21.779217][ T312] RIP: 0033:0x7f780dc67cb9 [ 21.779237][ 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 [ 21.779252][ T312] RSP: 002b:00007ffd1cdbf6a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 21.779275][ T312] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f780dc67cb9 [ 21.779289][ T312] RDX: 0000000000000101 RSI: 0000200000000d40 RDI: 0000000000000003 [ 21.779301][ T312] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffd1cdbf7d8 [ 21.779313][ T312] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1cdbf7c8 [ 21.779325][ T312] R13: 0000000000000002 R14: 00007f780dcf8ca0 R15: 0000000000000002 [ 21.779339][ T312] [ 21.779345][ T312] [ 21.805859][ T36] audit: type=1400 audit(1785353273.149:68): avc: denied { write } for pid=312 comm="syz-executor395" name="usb_gadget" dev="configfs" ino=785 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 21.814900][ T312] Allocated by task 312: [ 21.814912][ T312] kasan_save_track+0x3e/0x80 [ 21.814936][ T312] kasan_save_alloc_info+0x3a/0x50 [ 21.825225][ T36] audit: type=1400 audit(1785353273.149:69): avc: denied { add_name } for pid=312 comm="syz-executor395" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 21.828240][ T312] __kasan_kmalloc+0x96/0xb0 [ 21.831311][ T36] audit: type=1400 audit(1785353273.149:70): avc: denied { create } for pid=312 comm="syz-executor395" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 21.835546][ T312] __kmalloc_node_track_caller_noprof+0x24e/0x4f0 [ 21.840210][ T36] audit: type=1400 audit(1785353273.149:71): avc: denied { write } for pid=312 comm="syz-executor395" name="p_srate" dev="configfs" ino=2416 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 21.845457][ T312] kstrdup+0x4d/0x130 [ 21.845477][ T312] f_uac2_opts_p_srate_store+0x11e/0x2b0 [ 21.845497][ T312] configfs_write_iter+0x32f/0x490 [ 21.851428][ T36] audit: type=1400 audit(1785353273.149:72): avc: denied { open } for pid=312 comm="syz-executor395" path="/root/config/usb_gadget/g1/functions/uac2.usb0/p_srate" dev="configfs" ino=2416 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 21.855320][ T312] vfs_write+0x762/0xfd0 [ 22.226337][ T312] ksys_write+0x145/0x260 [ 22.230655][ T312] __x64_sys_write+0x7f/0x90 [ 22.235235][ T312] x64_sys_call+0x271c/0x2ee0 [ 22.239887][ T312] do_syscall_64+0x57/0xf0 [ 22.244276][ T312] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 22.250232][ T312] [ 22.252535][ T312] The buggy address belongs to the object at ffff888105b9a180 [ 22.252535][ T312] which belongs to the cache kmalloc-32 of size 32 [ 22.266396][ T312] The buggy address is located 12 bytes inside of [ 22.266396][ T312] 18-byte region [ffff888105b9a180, ffff888105b9a192) [ 22.279512][ T312] [ 22.281827][ T312] The buggy address belongs to the physical page: [ 22.288226][ T312] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105b9a [ 22.297067][ T312] flags: 0x4000000000000000(zone=1) [ 22.302238][ T312] page_type: f5(slab) [ 22.306196][ T312] raw: 4000000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 22.314750][ T312] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 22.323314][ T312] page dumped because: kasan: bad access detected [ 22.329717][ T312] page_owner tracks the page as allocated [ 22.335402][ T312] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 312, tgid 312 (syz-executor395), ts 21691010635, free_ts 17641294812 [ 22.354738][ T312] post_alloc_hook+0x37d/0x3b0 [ 22.359568][ T312] prep_new_page+0x2d/0x180 [ 22.364064][ T312] get_page_from_freelist+0x4aea/0x4ba0 [ 22.369600][ T312] __alloc_pages_noprof+0x35a/0x7e0 [ 22.374785][ T312] alloc_slab_page+0x6b/0x1e0 [ 22.379456][ T312] allocate_slab+0x69/0x430 [ 22.383943][ T312] ___slab_alloc+0x591/0x8c0 [ 22.388522][ T312] __kmalloc_noprof+0x2fc/0x510 [ 22.393353][ T312] context_struct_to_string+0x45c/0xa10 [ 22.398880][ T312] security_sid_to_context_core+0x340/0x5d0 [ 22.404754][ T312] security_sid_to_context+0x2e/0x50 [ 22.410020][ T312] avc_audit_post_callback+0x1a8/0x790 [ 22.415557][ T312] common_lsm_audit+0x14b6/0x18b0 [ 22.420559][ T312] slow_avc_audit+0x19f/0x220 [ 22.425226][ T312] avc_has_perm+0x1ec/0x240 [ 22.429705][ T312] selinux_sb_kern_mount+0x173/0x200 [ 22.434993][ T312] page last free pid 33 tgid 33 stack trace: [ 22.440949][ T312] free_unref_page+0xbb8/0xf70 [ 22.445694][ T312] __free_pages+0x6b/0x3b0 [ 22.450093][ T312] tlb_remove_table_rcu+0x2b2/0x3d0 [ 22.455280][ T312] rcu_do_batch+0x56a/0xcb0 [ 22.459773][ T312] rcu_nocb_cb_kthread+0x533/0xb60 [ 22.464866][ T312] kthread+0x2c7/0x360 [ 22.468925][ T312] ret_from_fork+0x67/0xa0 [ 22.473329][ T312] ret_from_fork_asm+0x1a/0x30 [ 22.478076][ T312] [ 22.480379][ T312] Memory state around the buggy address: [ 22.485982][ T312] ffff888105b9a080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.494040][ T312] ffff888105b9a100: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 22.502075][ T312] >ffff888105b9a180: 00 00 02 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.510107][ T312] ^ [ 22.514421][ T312] ffff888105b9a200: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 22.522472][ T312] ffff888105b9a280: fc fc fc fc fc fc fc fc fa fb fb fb fc fc fc fc [ 22.530504][ T312] ================================================================== 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 +++ [ 22.538758][ T312] Disabling lock debugging due to kern