ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor3819638857 <...> Warning: Permanently added '10.128.1.36' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor3819638857", ["ci2-android-6-1/syz-executor3819638857"], 0x7fff1a6b4e00 /* 10 vars */) = 0 brk(NULL) = 0x555565e85000 brk(0x555565e85d40) = 0x555565e85d40 arch_prctl(ARCH_SET_FS, 0x555565e853c0) = 0 set_tid_address(0x555565e85690) = 305 set_robust_list(0x555565e856a0, 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-executor3819638857", 4096) = 44 getrandom("\x3e\x68\x09\xc2\xc8\x4f\x3f\xac", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555565e85d40 brk(0x555565ea6d40) = 0x555565ea6d40 brk(0x555565ea7000) = 0x555565ea7000 mprotect(0x7fae35ae7000, 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("\x3f\x75\xbc\x5d\xb5\xa7\xd1\x42", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.jnaYyt", 0700) = 0 chmod("./syzkaller.jnaYyt", 0777) = 0 chdir("./syzkaller.jnaYyt") = 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=0x555565e85690) = 306 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-6-1/strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x555565e856a0, 24) = 0 [pid 306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 306] getppid() = 0 [pid 306] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 306] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 306] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 306] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 306] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 306] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 306] unshare(CLONE_NEWNS) = 0 [pid 306] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 306] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 306] unshare(CLONE_NEWCGROUP) = 0 [pid 306] unshare(CLONE_NEWUTS) = 0 [pid 306] unshare(CLONE_SYSVSEM) = 0 [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 306] getpid() = 1 [pid 306] 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 [ 24.882166][ T306] RSP: 0018:ffffc90000eb7b60 EFLAGS: 00010293 [ 24.888247][ T306] RAX: ffffffff81c63ee5 RBX: ffff888110512650 RCX: ffff888110109440 [ 24.896258][ T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.904271][ T306] RBP: ffffc90000eb7b88 R08: 0000000000000003 R09: 0000000000000004 [ 24.912310][ T306] R10: dffffc0000000000 R11: fffff520001d6f5c R12: dffffc0000000000 [ 24.920292][ T306] R13: 1ffff110220a24d3 R14: ffff888110512698 R15: 0000000000000000 [ 24.928299][ T306] FS: 0000555565e853c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.937272][ T306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.943899][ T306] CR2: 0000555565e96798 CR3: 000000012252c000 CR4: 00000000003506b0 [ 24.951920][ T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.959895][ T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.967907][ T306] Call Trace: [ 24.971211][ T306] [ 24.974180][ T306] shmem_rmdir+0x5b/0x90 [ 24.978446][ T306] vfs_rmdir+0x381/0x4f0 [ 24.982755][ T306] incfs_kill_sb+0xfe/0x210 [ 24.987287][ T306] deactivate_locked_super+0xb5/0x120 [ 24.992720][ T306] deactivate_super+0xaf/0xe0 [ 24.997453][ T306] cleanup_mnt+0x45e/0x4e0 [ 25.001916][ T306] __cleanup_mnt+0x19/0x20 [ 25.006345][ T306] task_work_run+0x1e1/0x250 [ 25.010938][ T306] ? __cfi_task_work_run+0x10/0x10 [ 25.016081][ T306] ? path_umount+0x345/0xf60 [ 25.020692][ T306] ? __kasan_slab_free+0x11/0x20 [ 25.025716][ T306] ptrace_notify+0x23f/0x270 [ 25.030333][ T306] ? __cfi_path_umount+0x10/0x10 [ 25.035328][ T306] ? __cfi_ptrace_notify+0x10/0x10 [ 25.040463][ T306] ? user_path_at_empty+0x162/0x1c0 [ 25.045705][ T306] ? __x64_sys_umount+0x12d/0x170 [ 25.050753][ T306] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.056180][ T306] syscall_exit_work+0x84/0x140 [ 25.061045][ T306] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.067247][ T306] syscall_exit_to_user_mode+0xd/0x30 [ 25.072668][ T306] do_syscall_64+0x58/0xa0 [ 25.077095][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.081801][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.086493][ T306] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.092440][ T306] RIP: 0033:0x7fae35a54527 [ 25.096885][ T306] 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 [ 25.116576][ T306] RSP: 002b:00007ffe667481f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 25.125050][ T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fae35a54527 [ 25.133076][ T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe667482b0 [ 25.141080][ T306] RBP: 00007ffe667482b0 R08: 00007ffe667492b0 R09: 00000000ffffffff [ 25.149111][ T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe66749320 [ 25.157152][ T306] R13: 0000555565e86720 R14: 00007ffe66749320 R15: 0000000000000001 [ 25.165218][ T306] [ 25.168246][ T306] ---[ end trace 0000000000000000 ]--- [ 25.173890][ T306] ================================================================== [ 25.181968][ T306] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 [ 25.188202][ T306] Write of size 4 at addr 0000000000000170 by task syz-executor381/306 [ 25.196428][ T306] [ 25.198745][ T306] CPU: 0 PID: 306 Comm: syz-executor381 Tainted: G W syzkaller #0 [ 25.207931][ T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.217979][ T306] Call Trace: [ 25.221252][ T306] [ 25.224189][ T306] __dump_stack+0x21/0x24 [ 25.228533][ T306] dump_stack_lvl+0x110/0x170 [ 25.233212][ T306] ? __cfi_dump_stack_lvl+0x8/0x8 [ 25.238240][ T306] ? __cfi_call_rcu+0x10/0x10 [ 25.242927][ T306] ? ihold+0x20/0x60 [ 25.246819][ T306] ? ihold+0x20/0x60 [ 25.250713][ T306] print_report+0x3d/0x60 [ 25.255044][ T306] kasan_report+0x122/0x150 [ 25.259545][ T306] ? ihold+0x20/0x60 [ 25.263432][ T306] kasan_check_range+0x249/0x2a0 [ 25.268372][ T306] __kasan_check_write+0x14/0x20 [ 25.273298][ T306] ihold+0x20/0x60 [ 25.277007][ T306] vfs_rmdir+0x24c/0x4f0 [ 25.281264][ T306] incfs_kill_sb+0xfe/0x210 [ 25.285765][ T306] deactivate_locked_super+0xb5/0x120 [ 25.291135][ T306] deactivate_super+0xaf/0xe0 [ 25.295806][ T306] cleanup_mnt+0x45e/0x4e0 [ 25.300216][ T306] __cleanup_mnt+0x19/0x20 [ 25.304624][ T306] task_work_run+0x1e1/0x250 [ 25.309207][ T306] ? __cfi_task_work_run+0x10/0x10 [ 25.314323][ T306] ? path_umount+0x345/0xf60 [ 25.318909][ T306] ? __kasan_slab_free+0x11/0x20 [ 25.323841][ T306] ptrace_notify+0x23f/0x270 [ 25.328467][ T306] ? __cfi_path_umount+0x10/0x10 [ 25.333415][ T306] ? __cfi_ptrace_notify+0x10/0x10 [ 25.338534][ T306] ? user_path_at_empty+0x162/0x1c0 [ 25.343734][ T306] ? __x64_sys_umount+0x12d/0x170 [ 25.348776][ T306] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.354159][ T306] syscall_exit_work+0x84/0x140 [ 25.359018][ T306] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.365178][ T306] syscall_exit_to_user_mode+0xd/0x30 [ 25.370558][ T306] do_syscall_64+0x58/0xa0 [ 25.374981][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.379664][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.384343][ T306] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.390265][ T306] RIP: 0033:0x7fae35a54527 [ 25.394685][ T306] 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 [ 25.414312][ T306] RSP: 002b:00007ffe667481f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 25.422734][ T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fae35a54527 [ 25.430714][ T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe667482b0 [ 25.438687][ T306] RBP: 00007ffe667482b0 R08: 00007ffe667492b0 R09: 00000000ffffffff [ 25.446662][ T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe66749320 [ 25.454640][ T306] R13: 0000555565e86720 R14: 00007ffe66749320 R15: 0000000000000001 [ 25.462621][ T306] [ 25.465653][ T306] ================================================================== [ 25.473925][ T306] Disabling lock debugging due to kernel taint [ 25.480105][ T306] BUG: kernel NULL pointer dereference, address: 0000000000000170 [ 25.487907][ T306] #PF: supervisor write access in kernel mode [ 25.493981][ T306] #PF: error_code(0x0002) - not-present page [ 25.499948][ T306] PGD 0 P4D 0 [ 25.503313][ T306] Oops: 0002 [#1] PREEMPT SMP KASAN [ 25.508502][ T306] CPU: 0 PID: 306 Comm: syz-executor381 Tainted: G B W syzkaller #0 [ 25.517691][ T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.527738][ T306] RIP: 0010:ihold+0x26/0x60 [ 25.532236][ T306] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 c1 1e ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 00 ac 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 b1 [ 25.551842][ T306] RSP: 0018:ffffc90000eb7ba0 EFLAGS: 00010246 [ 25.557907][ T306] RAX: ffff888110109400 RBX: 0000000000000000 RCX: ffff888110109440 [ 25.565870][ T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.573851][ T306] RBP: ffffc90000eb7bb0 R08: ffffffff87b757e7 R09: 1ffffffff0f6eafc [ 25.581829][ T306] R10: dffffc0000000000 R11: fffffbfff0f6eafd R12: ffff88811051265c [ 25.589797][ T306] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 25.597765][ T306] FS: 0000555565e853c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.606695][ T306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.613305][ T306] CR2: 0000000000000170 CR3: 000000012252c000 CR4: 00000000003506b0 [ 25.621281][ T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.629251][ T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.637213][ T306] Call Trace: [ 25.640483][ T306] [ 25.643405][ T306] vfs_rmdir+0x24c/0x4f0 [ 25.647643][ T306] incfs_kill_sb+0xfe/0x210 [ 25.652146][ T306] deactivate_locked_super+0xb5/0x120 [ 25.657517][ T306] deactivate_super+0xaf/0xe0 [ 25.662190][ T306] cleanup_mnt+0x45e/0x4e0 [ 25.666601][ T306] __cleanup_mnt+0x19/0x20 [ 25.671028][ T306] task_work_run+0x1e1/0x250 [ 25.675613][ T306] ? __cfi_task_work_run+0x10/0x10 [ 25.680722][ T306] ? path_umount+0x345/0xf60 [ 25.685314][ T306] ? __kasan_slab_free+0x11/0x20 [ 25.690271][ T306] ptrace_notify+0x23f/0x270 [ 25.694862][ T306] ? __cfi_path_umount+0x10/0x10 [ 25.699796][ T306] ? __cfi_ptrace_notify+0x10/0x10 [ 25.704899][ T306] ? user_path_at_empty+0x162/0x1c0 [ 25.710089][ T306] ? __x64_sys_umount+0x12d/0x170 [ 25.715109][ T306] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.720479][ T306] syscall_exit_work+0x84/0x140 [ 25.725325][ T306] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.731476][ T306] syscall_exit_to_user_mode+0xd/0x30 [ 25.736845][ T306] do_syscall_64+0x58/0xa0 [ 25.741259][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.745927][ T306] ? clear_bhb_loop+0x30/0x80 [ 25.750594][ T306] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.756488][ T306] RIP: 0033:0x7fae35a54527 [ 25.760894][ T306] 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 [ 25.780494][ T306] RSP: 002b:00007ffe667481f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 25.788928][ T306] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fae35a54527 [ 25.796914][ T306] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe667482b0 [ 25.804876][ T306] RBP: 00007ffe667482b0 R08: 00007ffe667492b0 R09: 00000000ffffffff [ 25.812842][ T306] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe66749320 [ 25.820804][ T306] R13: 0000555565e86720 R14: 00007ffe66749320 R15: 0000000000000001 [ 25.828768][ T306] [ 25.831801][ T306] Modules linked in: [ 25.835706][ T306] CR2: 0000000000000170 [ 25.839847][ T306] ---[ end trace 0000000000000000 ]--- [ 25.845379][ T306] RIP: 0010:ihold+0x26/0x60 [ 25.849883][ T306] Code: 33 36 7c df 55 48 89 e5 41 56 53 48 89 fb e8 c1 1e ab ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 00 ac 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 b1 [ 25.869482][ T306] RSP: 0018:ffffc90000eb7ba0 EFLAGS: 00010246 [ 25.875547][ T306] RAX: ffff888110109400 RBX: 0000000000000000 RCX: ffff888110109440 [ 25.883515][ T306] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.891477][ T306] RBP: ffffc90000eb7bb0 R08: ffffffff87b757e7 R09: 1ffffffff0f6eafc [ 25.899449][ T306] R10: dffffc0000000000 R11: fffffbfff0f6eafd R12: ffff88811051265c [ 25.907414][ T306] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 25.915381][ T306] FS: 0000555565e853c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.924318][ T306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.930891][ T306] CR2: 0000000000000170 CR3: 000000012252c000 CR4: 00000000003506b0 [ 25.938857][ T306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.946822][ T306] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.954788][ T306] Kernel panic - not syncing: Fatal exception [ 25.961623][ T306] Kernel Offset: disabled [ 25.965967][ T306] Rebooting in 86400 seconds..