ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor3520544284 <...> Warning: Permanently added '10.128.1.28' (ED25519) to the list of known hosts. execve("ci2-android-5-15/syz-executor3520544284", ["ci2-android-5-15/syz-executor3520544284"], 0x7ffdf31746e0 /* 10 vars */) = 0 brk(NULL) = 0x555569f8f000 brk(0x555569f8fd40) = 0x555569f8fd40 arch_prctl(ARCH_SET_FS, 0x555569f8f3c0) = 0 set_tid_address(0x555569f8f690) = 303 set_robust_list(0x555569f8f6a0, 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-5-15/syz-executor3520544284", 4096) = 45 getrandom("\xdb\x24\xc0\xc5\x5e\xed\x01\x06", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569f8fd40 brk(0x555569fb0d40) = 0x555569fb0d40 brk(0x555569fb1000) = 0x555569fb1000 mprotect(0x7fafcb7cf000, 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("\x0d\xda\x35\x75\x82\xf4\x4f\x61", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.3xreyP", 0700) = 0 chmod("./syzkaller.3xreyP", 0777) = 0 chdir("./syzkaller.3xreyP") = 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=0x555569f8f690) = 304 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-15/strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x555569f8f6a0, 24) = 0 [pid 304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 304] getppid() = 0 [pid 304] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 304] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 304] unshare(CLONE_NEWNS) = 0 [pid 304] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 304] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 304] unshare(CLONE_NEWCGROUP) = 0 [pid 304] unshare(CLONE_NEWUTS) = 0 [pid 304] unshare(CLONE_SYSVSEM) = 0 [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 304] getpid() = 1 [pid 304] 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 [ 25.315447][ T304] RSP: 0018:ffffc90000987bd0 EFLAGS: 00010293 [ 25.321509][ T304] RAX: ffffffff81b76e65 RBX: ffff888122d2ee88 RCX: ffff888104b96400 [ 25.329545][ T304] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.337547][ T304] RBP: ffffc90000987bf8 R08: 0000000000000003 R09: 0000000000000004 [ 25.345533][ T304] R10: dffffc0000000000 R11: fffff52000130f68 R12: dffffc0000000000 [ 25.353533][ T304] R13: 1ffff110245a5dda R14: ffff888122d2eed0 R15: 0000000000000000 [ 25.361500][ T304] FS: 0000555569f8f3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.370633][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.377283][ T304] CR2: 00005628e7df9738 CR3: 00000001019a5000 CR4: 00000000003506b0 [ 25.385293][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.393588][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.401571][ T304] Call Trace: [ 25.404901][ T304] [ 25.407841][ T304] shmem_rmdir+0x5b/0x90 [ 25.412082][ T304] vfs_rmdir+0x1ae/0x450 [ 25.416373][ T304] incfs_kill_sb+0xfe/0x210 [ 25.420877][ T304] deactivate_locked_super+0xa0/0x100 [ 25.426265][ T304] deactivate_super+0xaf/0xe0 [ 25.430957][ T304] cleanup_mnt+0x44f/0x500 [ 25.435394][ T304] __cleanup_mnt+0x19/0x20 [ 25.439808][ T304] task_work_run+0x127/0x190 [ 25.444425][ T304] ptrace_notify+0x230/0x270 [ 25.449010][ T304] ? do_notify_parent+0x830/0x830 [ 25.454065][ T304] ? user_path_at_empty+0x162/0x1c0 [ 25.459396][ T304] ? __x64_sys_umount+0x12d/0x170 [ 25.464460][ T304] ? path_umount+0xfa0/0xfa0 [ 25.469137][ T304] syscall_exit_work+0x87/0x160 [ 25.474014][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.480162][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 25.485550][ T304] do_syscall_64+0x58/0xa0 [ 25.489973][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.494662][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.499335][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 25.505280][ T304] RIP: 0033:0x7fafcb73c527 [ 25.509690][ T304] 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 [ 25.529309][ T304] RSP: 002b:00007fffcdfaaa28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.537741][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fafcb73c527 [ 25.545753][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffcdfaaae0 [ 25.553767][ T304] RBP: 00007fffcdfaaae0 R08: 00007fffcdfabae0 R09: 00000000ffffffff [ 25.561726][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcdfabb50 [ 25.569729][ T304] R13: 0000555569f90720 R14: 00007fffcdfabb50 R15: 0000000000000001 [ 25.577718][ T304] [ 25.580720][ T304] ---[ end trace fcad5a7dfb9dbbec ]--- [ 25.586237][ T304] ================================================================== [ 25.594308][ T304] BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 [ 25.600544][ T304] Write of size 4 at addr 0000000000000170 by task syz-executor352/304 [ 25.608754][ T304] [ 25.611054][ T304] CPU: 0 PID: 304 Comm: syz-executor352 Tainted: G W syzkaller #0 [ 25.620128][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 [ 25.631856][ T304] Call Trace: [ 25.635136][ T304] [ 25.638412][ T304] __dump_stack+0x21/0x30 [ 25.642733][ T304] dump_stack_lvl+0x110/0x170 [ 25.647389][ T304] ? show_regs_print_info+0x20/0x20 [ 25.652649][ T304] ? _raw_spin_lock+0x94/0xf0 [ 25.657306][ T304] ? _raw_spin_trylock_bh+0x150/0x150 [ 25.662676][ T304] ? ihold+0x20/0x60 [ 25.666547][ T304] kasan_report+0xcc/0x150 [ 25.670938][ T304] ? ihold+0x20/0x60 [ 25.674806][ T304] kasan_check_range+0x249/0x2a0 [ 25.679726][ T304] __kasan_check_write+0x14/0x20 [ 25.684655][ T304] ihold+0x20/0x60 [ 25.688347][ T304] vfs_rmdir+0x23d/0x450 [ 25.692566][ T304] incfs_kill_sb+0xfe/0x210 [ 25.697063][ T304] deactivate_locked_super+0xa0/0x100 [ 25.702407][ T304] deactivate_super+0xaf/0xe0 [ 25.707057][ T304] cleanup_mnt+0x44f/0x500 [ 25.711447][ T304] __cleanup_mnt+0x19/0x20 [ 25.715850][ T304] task_work_run+0x127/0x190 [ 25.720414][ T304] ptrace_notify+0x230/0x270 [ 25.724979][ T304] ? do_notify_parent+0x830/0x830 [ 25.729978][ T304] ? user_path_at_empty+0x162/0x1c0 [ 25.735151][ T304] ? __x64_sys_umount+0x12d/0x170 [ 25.740149][ T304] ? path_umount+0xfa0/0xfa0 [ 25.744729][ T304] syscall_exit_work+0x87/0x160 [ 25.749552][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.755676][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 25.761027][ T304] do_syscall_64+0x58/0xa0 [ 25.765521][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.770178][ T304] ? clear_bhb_loop+0x50/0xa0 [ 25.774835][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 25.780704][ T304] RIP: 0033:0x7fafcb73c527 [ 25.785095][ T304] 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 [ 25.804678][ T304] RSP: 002b:00007fffcdfaaa28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.813072][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fafcb73c527 [ 25.821022][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffcdfaaae0 [ 25.828976][ T304] RBP: 00007fffcdfaaae0 R08: 00007fffcdfabae0 R09: 00000000ffffffff [ 25.836928][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcdfabb50 [ 25.844873][ T304] R13: 0000555569f90720 R14: 00007fffcdfabb50 R15: 0000000000000001 [ 25.852827][ T304] [ 25.855821][ T304] ================================================================== [ 25.863956][ T304] Disabling lock debugging due to kernel taint [ 25.870239][ T304] BUG: kernel NULL pointer dereference, address: 0000000000000170 [ 25.878138][ T304] #PF: supervisor write access in kernel mode [ 25.884200][ T304] #PF: error_code(0x0002) - not-present page [ 25.890201][ T304] PGD 0 P4D 0 [ 25.893558][ T304] Oops: 0002 [#1] PREEMPT SMP KASAN [ 25.898731][ T304] CPU: 0 PID: 304 Comm: syz-executor352 Tainted: G B W syzkaller #0 [ 25.907815][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 [ 25.917853][ T304] RIP: 0010:ihold+0x26/0x60 [ 25.922360][ T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 60 b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 20 fd f1 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 31 [ 25.941955][ T304] RSP: 0018:ffffc90000987c10 EFLAGS: 00010246 [ 25.948445][ T304] RAX: ffff888104b96400 RBX: 0000000000000000 RCX: ffff888104b96400 [ 25.956408][ T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff [ 25.964463][ T304] RBP: ffffc90000987c20 R08: 0000000000000003 R09: 0000000000000004 [ 25.972442][ T304] R10: dffffc0000000000 R11: fffffbfff0e1904c R12: 1ffff11024293bc0 [ 25.980418][ T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 25.988467][ T304] FS: 0000555569f8f3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.997388][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.003956][ T304] CR2: 0000000000000170 CR3: 00000001019a5000 CR4: 00000000003506b0 [ 26.011912][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.019894][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.027846][ T304] Call Trace: [ 26.031105][ T304] [ 26.034035][ T304] vfs_rmdir+0x23d/0x450 [ 26.038266][ T304] incfs_kill_sb+0xfe/0x210 [ 26.042750][ T304] deactivate_locked_super+0xa0/0x100 [ 26.048105][ T304] deactivate_super+0xaf/0xe0 [ 26.052918][ T304] cleanup_mnt+0x44f/0x500 [ 26.057365][ T304] __cleanup_mnt+0x19/0x20 [ 26.061764][ T304] task_work_run+0x127/0x190 [ 26.066337][ T304] ptrace_notify+0x230/0x270 [ 26.070917][ T304] ? do_notify_parent+0x830/0x830 [ 26.075934][ T304] ? user_path_at_empty+0x162/0x1c0 [ 26.081118][ T304] ? __x64_sys_umount+0x12d/0x170 [ 26.086140][ T304] ? path_umount+0xfa0/0xfa0 [ 26.090729][ T304] syscall_exit_work+0x87/0x160 [ 26.095562][ T304] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 26.101694][ T304] syscall_exit_to_user_mode+0xd/0x30 [ 26.107048][ T304] do_syscall_64+0x58/0xa0 [ 26.111446][ T304] ? clear_bhb_loop+0x50/0xa0 [ 26.116107][ T304] ? clear_bhb_loop+0x50/0xa0 [ 26.120791][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 26.126664][ T304] RIP: 0033:0x7fafcb73c527 [ 26.131060][ T304] 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 [ 26.150646][ T304] RSP: 002b:00007fffcdfaaa28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 26.159044][ T304] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fafcb73c527 [ 26.166997][ T304] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffcdfaaae0 [ 26.174950][ T304] RBP: 00007fffcdfaaae0 R08: 00007fffcdfabae0 R09: 00000000ffffffff [ 26.182902][ T304] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcdfabb50 [ 26.190852][ T304] R13: 0000555569f90720 R14: 00007fffcdfabb50 R15: 0000000000000001 [ 26.198804][ T304] [ 26.202064][ T304] Modules linked in: [ 26.205954][ T304] CR2: 0000000000000170 [ 26.210096][ T304] ---[ end trace fcad5a7dfb9dbbed ]--- [ 26.215531][ T304] RIP: 0010:ihold+0x26/0x60 [ 26.220023][ T304] Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 60 b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 20 fd f1 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 31 [ 26.239626][ T304] RSP: 0018:ffffc90000987c10 EFLAGS: 00010246 [ 26.245692][ T304] RAX: ffff888104b96400 RBX: 0000000000000000 RCX: ffff888104b96400 [ 26.253660][ T304] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff [ 26.261612][ T304] RBP: ffffc90000987c20 R08: 0000000000000003 R09: 0000000000000004 [ 26.269562][ T304] R10: dffffc0000000000 R11: fffffbfff0e1904c R12: 1ffff11024293bc0 [ 26.277540][ T304] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.285498][ T304] FS: 0000555569f8f3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.294410][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.300972][ T304] CR2: 0000000000000170 CR3: 00000001019a5000 CR4: 00000000003506b0 [ 26.308928][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.316969][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.324925][ T304] Kernel panic - not syncing: Fatal exception [ 26.331218][ T304] Kernel Offset: disabled [ 26.335526][ T304] Rebooting in 86400 seconds..