ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor3695073322 <...> Warning: Permanently added '10.128.1.31' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor3695073322", ["ci2-android-6-1/syz-executor3695073322"], 0x7ffcb113d040 /* 10 vars */) = 0 brk(NULL) = 0x555582bb2000 brk(0x555582bb2d40) = 0x555582bb2d40 arch_prctl(ARCH_SET_FS, 0x555582bb23c0) = 0 set_tid_address(0x555582bb2690) = 304 set_robust_list(0x555582bb26a0, 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-6-1/syz-executor3695073322", 4096) = 44 getrandom("\x85\x3d\xe2\xf9\x22\x5d\xa6\xe4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555582bb2d40 brk(0x555582bd3d40) = 0x555582bd3d40 brk(0x555582bd4000) = 0x555582bd4000 mprotect(0x7f76ce76f000, 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 getrandom("\x99\xe6\x7a\x20\xa2\xca\xd1\xe9", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.HuwFYf", 0700) = 0 chmod("./syzkaller.HuwFYf", 0777) = 0 chdir("./syzkaller.HuwFYf") = 0 unshare(CLONE_NEWPID) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555582bb2690) = 305 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-6-1/strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x555582bb26a0, 24) = 0 [pid 305] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] getppid() = 0 [pid 305] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 305] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 305] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 305] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 305] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 305] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 305] unshare(CLONE_NEWNS) = 0 [pid 305] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 305] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 305] unshare(CLONE_NEWCGROUP) = 0 [pid 305] unshare(CLONE_NEWUTS) = 0 [pid 305] unshare(CLONE_SYSVSEM) = 0 [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 305] getpid() = 1 [pid 305] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c [ 25.514116][ T305] RSP: 0018:ffffc90000df7b60 EFLAGS: 00010293 [ 25.520193][ T305] RAX: ffffffff81c65215 RBX: ffff88810fef8080 RCX: ffff888110143cc0 [ 25.528311][ T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.536343][ T305] RBP: ffffc90000df7b88 R08: 0000000000000003 R09: 0000000000000004 [ 25.544588][ T305] R10: dffffc0000000000 R11: fffff520001bef5c R12: dffffc0000000000 [ 25.552795][ T305] R13: 1ffff11021fdf019 R14: ffff88810fef80c8 R15: 0000000000000000 [ 25.560812][ T305] FS: 0000555582bb23c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.569758][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.576457][ T305] CR2: 00000000006a9ee0 CR3: 0000000110561000 CR4: 00000000003506b0 [ 25.584463][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.592466][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.600475][ T305] Call Trace: [ 25.603757][ T305] [ 25.606678][ T305] shmem_rmdir+0x5b/0x90 [ 25.610943][ T305] vfs_rmdir+0x381/0x4f0 [ 25.615220][ T305] incfs_kill_sb+0xfe/0x210 [ 25.619725][ T305] deactivate_locked_super+0xb5/0x120 [ 25.625152][ T305] deactivate_super+0xaf/0xe0 [ 25.629868][ T305] cleanup_mnt+0x45e/0x4e0 [ 25.634330][ T305] __cleanup_mnt+0x19/0x20 [ 25.638755][ T305] task_work_run+0x1e1/0x250 [ 25.643544][ T305] ? __cfi_task_work_run+0x10/0x10 [ 25.648667][ T305] ? path_umount+0x345/0xf60 [ 25.653277][ T305] ? __kasan_slab_free+0x11/0x20 [ 25.658228][ T305] ptrace_notify+0x23f/0x270 [ 25.662840][ T305] ? __cfi_path_umount+0x10/0x10 [ 25.667791][ T305] ? __cfi_ptrace_notify+0x10/0x10 [ 25.672935][ T305] ? user_path_at_empty+0x162/0x1c0 [ 25.678244][ T305] ? __x64_sys_umount+0x12d/0x170 [ 25.683287][ T305] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.688691][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 25.694354][ T305] syscall_exit_work+0x84/0x140 [ 25.699214][ T305] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.705398][ T305] syscall_exit_to_user_mode+0xd/0x30 [ 25.710804][ T305] do_syscall_64+0x58/0xa0 [ 25.715213][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.719879][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.724578][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.730509][ T305] RIP: 0033:0x7f76ce6dc527 [ 25.734915][ T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 25.754742][ T305] RSP: 002b:00007ffd7df2d418 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.763220][ T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f76ce6dc527 [ 25.771222][ T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd7df2d4d0 [ 25.779203][ T305] RBP: 00007ffd7df2d4d0 R08: 00007ffd7df2e4d0 R09: 00000000ffffffff [ 25.787208][ T305] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7df2e540 [ 25.795206][ T305] R13: 0000555582bb3720 R14: 00007ffd7df2e540 R15: 0000000000000001 [ 25.803205][ T305] [ 25.806228][ T305] ---[ end trace 0000000000000000 ]--- [ 25.811816][ T305] ================================================================== [ 25.819884][ T305] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 [ 25.826140][ T305] Write of size 4 at addr 0000000000000170 by task syz-executor369/305 [ 25.834447][ T305] [ 25.836850][ T305] CPU: 1 PID: 305 Comm: syz-executor369 Tainted: G W syzkaller #0 [ 25.846039][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 25.856777][ T305] Call Trace: [ 25.860070][ T305] [ 25.862997][ T305] __dump_stack+0x21/0x24 [ 25.867329][ T305] dump_stack_lvl+0x110/0x170 [ 25.872171][ T305] ? __cfi_dump_stack_lvl+0x8/0x8 [ 25.877198][ T305] ? __cfi_call_rcu+0x10/0x10 [ 25.881869][ T305] ? ihold+0x20/0x60 [ 25.885862][ T305] ? ihold+0x20/0x60 [ 25.889742][ T305] print_report+0x3d/0x60 [ 25.894062][ T305] kasan_report+0x122/0x150 [ 25.898690][ T305] ? ihold+0x20/0x60 [ 25.902577][ T305] kasan_check_range+0x249/0x2a0 [ 25.907621][ T305] __kasan_check_write+0x14/0x20 [ 25.912728][ T305] ihold+0x20/0x60 [ 25.916466][ T305] vfs_rmdir+0x24c/0x4f0 [ 25.920738][ T305] incfs_kill_sb+0xfe/0x210 [ 25.925253][ T305] deactivate_locked_super+0xb5/0x120 [ 25.930645][ T305] deactivate_super+0xaf/0xe0 [ 25.935349][ T305] cleanup_mnt+0x45e/0x4e0 [ 25.939775][ T305] __cleanup_mnt+0x19/0x20 [ 25.944191][ T305] task_work_run+0x1e1/0x250 [ 25.948791][ T305] ? __cfi_task_work_run+0x10/0x10 [ 25.953899][ T305] ? path_umount+0x345/0xf60 [ 25.958505][ T305] ? __kasan_slab_free+0x11/0x20 [ 25.963458][ T305] ptrace_notify+0x23f/0x270 [ 25.968076][ T305] ? __cfi_path_umount+0x10/0x10 [ 25.973062][ T305] ? __cfi_ptrace_notify+0x10/0x10 [ 25.978298][ T305] ? user_path_at_empty+0x162/0x1c0 [ 25.983513][ T305] ? __x64_sys_umount+0x12d/0x170 [ 25.988536][ T305] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.993907][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 25.999534][ T305] syscall_exit_work+0x84/0x140 [ 26.004389][ T305] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 26.010553][ T305] syscall_exit_to_user_mode+0xd/0x30 [ 26.015929][ T305] do_syscall_64+0x58/0xa0 [ 26.020388][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.025358][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.030145][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.036040][ T305] RIP: 0033:0x7f76ce6dc527 [ 26.040492][ T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 26.060395][ T305] RSP: 002b:00007ffd7df2d418 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 26.068823][ T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f76ce6dc527 [ 26.076800][ T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd7df2d4d0 [ 26.084769][ T305] RBP: 00007ffd7df2d4d0 R08: 00007ffd7df2e4d0 R09: 00000000ffffffff [ 26.092744][ T305] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7df2e540 [ 26.100716][ T305] R13: 0000555582bb3720 R14: 00007ffd7df2e540 R15: 0000000000000001 [ 26.108692][ T305] [ 26.111722][ T305] ================================================================== [ 26.120121][ T305] Disabling lock debugging due to kernel taint [ 26.126578][ T305] BUG: kernel NULL pointer dereference, address: 0000000000000170 [ 26.134406][ T305] #PF: supervisor write access in kernel mode [ 26.140470][ T305] #PF: error_code(0x0002) - not-present page [ 26.146441][ T305] PGD 0 P4D 0 [ 26.149817][ T305] Oops: 0002 [#1] PREEMPT SMP KASAN [ 26.155010][ T305] CPU: 1 PID: 305 Comm: syz-executor369 Tainted: G B W syzkaller #0 [ 26.164201][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 26.174343][ T305] RIP: 0010:ihold+0x26/0x60 [ 26.178860][ T305] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 91 13 ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 40 a1 f0 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81 [ 26.198646][ T305] RSP: 0018:ffffc90000df7ba0 EFLAGS: 00010246 [ 26.204957][ T305] RAX: ffff888110143c00 RBX: 0000000000000000 RCX: ffff888110143cc0 [ 26.212931][ T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.221160][ T305] RBP: ffffc90000df7bb0 R08: ffffffff87b767e7 R09: 1ffffffff0f6ecfc [ 26.229224][ T305] R10: dffffc0000000000 R11: fffffbfff0f6ecfd R12: ffff88810fef808c [ 26.237196][ T305] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.245254][ T305] FS: 0000555582bb23c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 26.254191][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.260854][ T305] CR2: 0000000000000170 CR3: 0000000110561000 CR4: 00000000003506a0 [ 26.268834][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.276985][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.284970][ T305] Call Trace: [ 26.288250][ T305] [ 26.291181][ T305] vfs_rmdir+0x24c/0x4f0 [ 26.295437][ T305] incfs_kill_sb+0xfe/0x210 [ 26.299944][ T305] deactivate_locked_super+0xb5/0x120 [ 26.305492][ T305] deactivate_super+0xaf/0xe0 [ 26.310177][ T305] cleanup_mnt+0x45e/0x4e0 [ 26.314596][ T305] __cleanup_mnt+0x19/0x20 [ 26.319013][ T305] task_work_run+0x1e1/0x250 [ 26.323603][ T305] ? __cfi_task_work_run+0x10/0x10 [ 26.328715][ T305] ? path_umount+0x345/0xf60 [ 26.333311][ T305] ? __kasan_slab_free+0x11/0x20 [ 26.338257][ T305] ptrace_notify+0x23f/0x270 [ 26.342851][ T305] ? __cfi_path_umount+0x10/0x10 [ 26.348075][ T305] ? __cfi_ptrace_notify+0x10/0x10 [ 26.353202][ T305] ? user_path_at_empty+0x162/0x1c0 [ 26.358492][ T305] ? __x64_sys_umount+0x12d/0x170 [ 26.363607][ T305] ? __cfi___x64_sys_umount+0x10/0x10 [ 26.368982][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 26.374612][ T305] syscall_exit_work+0x84/0x140 [ 26.379464][ T305] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 26.385708][ T305] syscall_exit_to_user_mode+0xd/0x30 [ 26.391081][ T305] do_syscall_64+0x58/0xa0 [ 26.395504][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.400273][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.404949][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.410933][ T305] RIP: 0033:0x7f76ce6dc527 [ 26.415347][ T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 64 85 09 00 00 00 00 00 eb 96 e8 b1 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 26.435007][ T305] RSP: 002b:00007ffd7df2d418 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 26.443420][ T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f76ce6dc527 [ 26.451388][ T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd7df2d4d0 [ 26.459443][ T305] RBP: 00007ffd7df2d4d0 R08: 00007ffd7df2e4d0 R09: 00000000ffffffff [ 26.467410][ T305] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffd7df2e540 [ 26.475380][ T305] R13: 0000555582bb3720 R14: 00007ffd7df2e540 R15: 0000000000000001 [ 26.483365][ T305] [ 26.486402][ T305] Modules linked in: [ 26.490294][ T305] CR2: 0000000000000170 [ 26.494530][ T305] ---[ end trace 0000000000000000 ]--- [ 26.499988][ T305] RIP: 0010:ihold+0x26/0x60 [ 26.504510][ T305] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 91 13 ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 40 a1 f0 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 81 [ 26.524402][ T305] RSP: 0018:ffffc90000df7ba0 EFLAGS: 00010246 [ 26.530470][ T305] RAX: ffff888110143c00 RBX: 0000000000000000 RCX: ffff888110143cc0 [ 26.538466][ T305] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.546641][ T305] RBP: ffffc90000df7bb0 R08: ffffffff87b767e7 R09: 1ffffffff0f6ecfc [ 26.554659][ T305] R10: dffffc0000000000 R11: fffffbfff0f6ecfd R12: ffff88810fef808c [ 26.562642][ T305] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.570700][ T305] FS: 0000555582bb23c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 26.579627][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.586211][ T305] CR2: 0000000000000170 CR3: 0000000110561000 CR4: 00000000003506a0 [ 26.594184][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.602159][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.610143][ T305] Kernel panic - not syncing: Fatal exception [ 26.616521][ T305] Kernel Offset: disabled [ 26.620978][ T305] Rebooting in 86400 seconds..