./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1921489043 <...> Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts. execve("./syz-executor1921489043", ["./syz-executor1921489043"], 0x7ffd906092b0 /* 10 vars */) = 0 brk(NULL) = 0x555556efd000 brk(0x555556efdd00) = 0x555556efdd00 arch_prctl(ARCH_SET_FS, 0x555556efd380) = 0 set_tid_address(0x555556efd650) = 290 set_robust_list(0x555556efd660, 24) = 0 rseq(0x555556efdca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1921489043", 4096) = 28 getrandom("\x84\x6a\x10\xfb\x1b\xa7\xcf\xa7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556efdd00 brk(0x555556f1ed00) = 0x555556f1ed00 brk(0x555556f1f000) = 0x555556f1f000 mprotect(0x7f0ecc9bf000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556efd650) = 291 ./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x555556efd660, 24) = 0 [pid 291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 291] getppid() = 0 [pid 291] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 291] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 291] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 291] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 291] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 291] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 291] unshare(CLONE_NEWNS) = 0 [pid 291] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 291] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 291] unshare(CLONE_NEWCGROUP) = 0 [pid 291] unshare(CLONE_NEWUTS) = 0 [pid 291] unshare(CLONE_SYSVSEM) = 0 [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 291] getpid() = 1 [pid 291] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<ffff88810bc1c500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.064543][ T25] ^ [ 24.068808][ T25] ffff88810bc1c580: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 24.076707][ T25] ffff88810bc1c600: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 24.084601][ T25] ================================================================== [ 24.092536][ T25] Disabling lock debugging due to kernel taint [ 24.098703][ T25] general protection fault, probably for non-canonical address 0xfbf7fc1e80000003: 0000 [#1] PREEMPT SMP KASAN [ 24.110209][ T25] KASAN: maybe wild-memory-access in range [0xdfc000f400000018-0xdfc000f40000001f] [ 24.119320][ T25] CPU: 1 PID: 25 Comm: kworker/1:1 Tainted: G B 5.10.226-syzkaller-00001-g6a01908517df #0 [ 24.130339][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 24.140237][ T25] Workqueue: events binder_deferred_func [ 24.145706][ T25] RIP: 0010:__list_del_entry_valid+0x75/0x120 [ 24.151605][ T25] Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 9c 9a 51 ff 49 8b 17 4c 39 f2 75 [ 24.171047][ T25] RSP: 0018:ffffc900001afc20 EFLAGS: 00010a06 [ 24.176947][ T25] RAX: 1bf8001e80000003 RBX: ffff88810be96700 RCX: ffffffff8256ad19 [ 24.184760][ T25] RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810bc1c500 [ 24.192587][ T25] RBP: ffffc900001afc40 R08: ffffffff813e2a7b R09: 0000000000000003 [ 24.200406][ T25] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000 [ 24.208284][ T25] R13: ffff88810bc1c500 R14: ffff88810bc1c500 R15: dfc000f400000019 [ 24.216090][ T25] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.224856][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.231276][ T25] CR2: 00007f0ecc9c30d0 CR3: 000000010bcb0000 CR4: 00000000003506a0 [ 24.239088][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.246899][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.254706][ T25] Call Trace: [ 24.257846][ T25] ? __die_body+0x62/0xb0 [ 24.262003][ T25] ? die_addr+0x9f/0xd0 [ 24.265996][ T25] ? exc_general_protection+0x3ff/0x490 [ 24.271383][ T25] ? check_panic_on_warn+0x65/0xb0 [ 24.276325][ T25] ? asm_exc_general_protection+0x1e/0x30 [ 24.281880][ T25] ? check_panic_on_warn+0x5b/0xb0 [ 24.286828][ T25] ? __list_del_entry_valid+0x49/0x120 [ 24.292119][ T25] ? __list_del_entry_valid+0x75/0x120 [ 24.297415][ T25] binder_release_work+0xcd/0x680 [ 24.302276][ T25] binder_deferred_func+0x1847/0x1bc0 [ 24.307494][ T25] ? read_word_at_a_time+0x12/0x20 [ 24.312431][ T25] process_one_work+0x6dc/0xbd0 [ 24.317116][ T25] worker_thread+0xaea/0x1510 [ 24.321631][ T25] ? _raw_spin_lock+0x1b0/0x1b0 [ 24.326319][ T25] ? __kasan_check_read+0x11/0x20 [ 24.331177][ T25] kthread+0x34b/0x3d0 [ 24.335082][ T25] ? worker_clr_flags+0x180/0x180 [ 24.339943][ T25] ? kthread_blkcg+0xd0/0xd0 [ 24.344551][ T25] ret_from_fork+0x1f/0x30 [ 24.348820][ T25] Modules linked in: [ 24.352720][ T25] ---[ end trace b637c835e9438273 ]--- [pid 292] close(5) = 0 [pid 292] close(6) = -1 EBADF (Bad file descriptor) [pid 292] close(7) = -1 EBADF (Bad file descriptor) [pid 292] close(8) = -1 EBADF (Bad file descriptor) [pid 292] close(9) = -1 EBADF (Bad file descriptor) [pid 292] close(10) = -1 EBADF (Bad file descriptor) [pid 292] close(11) = -1 EBADF (Bad file descriptor) [pid 292] close(12) = -1 EBADF (Bad file descriptor) [pid 292] close(13) = -1 EBADF (Bad file descriptor) [pid 292] close(14) = -1 EBADF (Bad file descriptor) [pid 292] close(15) = -1 EBADF (Bad file descriptor) [pid 292] close(16) = -1 EBADF (Bad file descriptor) [pid 292] close(17) = -1 EBADF (Bad file descriptor) [pid 292] close(18) = -1 EBADF (Bad file descriptor) [pid 292] close(19) = -1 EBADF (Bad file descriptor) [pid 292] close(20) = -1 EBADF (Bad file descriptor) [pid 292] close(21) = -1 EBADF (Bad file descriptor) [pid 292] close(22) = -1 EBADF (Bad file descriptor) [pid 292] close(23) = -1 EBADF (Bad file descriptor) [pid 292] close(24) = -1 EBADF (Bad file descriptor) [pid 292] close(25) = -1 EBADF (Bad file descriptor) [pid 292] close(26) = -1 EBADF (Bad file descriptor) [pid 292] close(27) = -1 EBADF (Bad file descriptor) [pid 292] close(28) = -1 EBADF (Bad file descriptor) [pid 292] close(29) = -1 EBADF (Bad file descriptor) [pid 292] exit_group(0) = ? [pid 292] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 291] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556efd650) = 3 ./strace-static-x86_64: Process 294 attached [pid 294] set_robust_list(0x555556efd660, 24) = 0 [pid 294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] setpgid(0, 0) = 0 [pid 294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] write(3, "1000", 4) = 4 [pid 294] close(3executing program ) = 0 [pid 294] write(1, "executing program\n", 18) = 18 [pid 294] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3 [pid 294] ioctl(3, BINDER_SET_CONTEXT_MGR_EXT, 0x20000300) = 0 [pid 294] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 4 [pid 294] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 5 [pid 294] ioctl(5, BINDER_WRITE_READ, 0x20000000) = 0 [pid 294] dup3(5, 4, 0) = 4 [ 24.358132][ T25] RIP: 0010:__list_del_entry_valid+0x75/0x120 [ 24.363989][ T25] Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 9c 9a 51 ff 49 8b 17 4c 39 f2 75 [ 24.383584][ T25] RSP: 0018:ffffc900001afc20 EFLAGS: 00010a06 [ 24.389718][ T25] RAX: 1bf8001e80000003 RBX: ffff88810be96700 RCX: ffffffff8256ad19 [ 24.393203][ T294] binder: 294:294 unknown command 0 [ 24.397874][ T25] RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810bc1c500 [pid 294] ioctl(4, BINDER_WRITE_READ, 0x20000580) = -1 EINVAL (Invalid argument) [pid 294] close(3) = 0 [pid 294] close(4) = 0 [pid 294] close(5) = 0 [pid 294] close(6) = -1 EBADF (Bad file descriptor) [pid 294] close(7) = -1 EBADF (Bad file descriptor) [pid 294] close(8) = -1 EBADF (Bad file descriptor) [pid 294] close(9) = -1 EBADF (Bad file descriptor) [pid 294] close(10) = -1 EBADF (Bad file descriptor) [pid 294] close(11) = -1 EBADF (Bad file descriptor) [pid 294] close(12) = -1 EBADF (Bad file descriptor) [pid 294] close(13) = -1 EBADF (Bad file descriptor) [pid 294] close(14) = -1 EBADF (Bad file descriptor) [pid 294] close(15) = -1 EBADF (Bad file descriptor) [pid 294] close(16) = -1 EBADF (Bad file descriptor) [pid 294] close(17) = -1 EBADF (Bad file descriptor) [pid 294] close(18) = -1 EBADF (Bad file descriptor) [pid 294] close(19) = -1 EBADF (Bad file descriptor) [pid 294] close(20) = -1 EBADF (Bad file descriptor) [pid 294] close(21) = -1 EBADF (Bad file descriptor) [pid 294] close(22) = -1 EBADF (Bad file descriptor) [pid 294] close(23) = -1 EBADF (Bad file descriptor) [pid 294] close(24) = -1 EBADF (Bad file descriptor) [pid 294] close(25) = -1 EBADF (Bad file descriptor) [pid 294] close(26) = -1 EBADF (Bad file descriptor) [pid 294] close(27) = -1 EBADF (Bad file descriptor) [pid 294] close(28) = -1 EBADF (Bad file descriptor) [pid 294] close(29) = -1 EBADF (Bad file descriptor) [pid 294] exit_group(0) = ? [pid 294] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 291] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556efd650) = 4 ./strace-static-x86_64: Process 295 attached executing program [pid 295] set_robust_list(0x555556efd660, 24) = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] write(1, "executing program\n", 18) = 18 [pid 295] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3 [pid 295] ioctl(3, BINDER_SET_CONTEXT_MGR_EXT, 0x20000300) = -1 EBUSY (Device or resource busy) [pid 295] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 4 [pid 295] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 5 [pid 295] ioctl(5, BINDER_WRITE_READ, 0x20000000) = 0 [pid 295] dup3(5, 4, 0) = 4 [ 24.402936][ T294] binder: 294:294 ioctl c0306201 20000580 returned -22 [ 24.410455][ T25] RBP: ffffc900001afc40 R08: ffffffff813e2a7b R09: 0000000000000003 [ 24.424872][ T25] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000 [ 24.430396][ T295] binder: BINDER_SET_CONTEXT_MGR already set [ 24.433525][ T25] R13: ffff88810bc1c500 R14: ffff88810bc1c500 R15: dfc000f400000019 [ 24.438888][ T295] binder: 295:295 ioctl 4018620d 20000300 returned -16 [ 24.446281][ T25] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [pid 295] ioctl(4, BINDER_WRITE_READ, 0x20000580) = -1 EINVAL (Invalid argument) [pid 295] close(3) = 0 [pid 295] close(4) = 0 [pid 295] close(5) = 0 [pid 295] close(6) = -1 EBADF (Bad file descriptor) [pid 295] close(7) = -1 EBADF (Bad file descriptor) [pid 295] close(8) = -1 EBADF (Bad file descriptor) [pid 295] close(9) = -1 EBADF (Bad file descriptor) [pid 295] close(10) = -1 EBADF (Bad file descriptor) [pid 295] close(11) = -1 EBADF (Bad file descriptor) [pid 295] close(12) = -1 EBADF (Bad file descriptor) [pid 295] close(13) = -1 EBADF (Bad file descriptor) [pid 295] close(14) = -1 EBADF (Bad file descriptor) [pid 295] close(15) = -1 EBADF (Bad file descriptor) [pid 295] close(16) = -1 EBADF (Bad file descriptor) [pid 295] close(17) = -1 EBADF (Bad file descriptor) [pid 295] close(18) = -1 EBADF (Bad file descriptor) [pid 295] close(19) = -1 EBADF (Bad file descriptor) [pid 295] close(20) = -1 EBADF (Bad file descriptor) [pid 295] close(21) = -1 EBADF (Bad file descriptor) [pid 295] close(22) = -1 EBADF (Bad file descriptor) [pid 295] close(23) = -1 EBADF (Bad file descriptor) [pid 295] close(24) = -1 EBADF (Bad file descriptor) [pid 295] close(25) = -1 EBADF (Bad file descriptor) [pid 295] close(26) = -1 EBADF (Bad file descriptor) [pid 295] close(27) = -1 EBADF (Bad file descriptor) [pid 295] close(28) = -1 EBADF (Bad file descriptor) [pid 295] close(29) = -1 EBADF (Bad file descriptor) [pid 295] exit_group(0) = ? [pid 295] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556efd650) = 5 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555556efd660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setpgid(0, 0) = 0 [pid 296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] write(3, "1000", 4) = 4 [pid 296] close(3) = 0 executing program [pid 296] write(1, "executing program\n", 18) = 18 [pid 296] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3 [ 24.454670][ T295] binder: 295:295 unknown command 0 [ 24.461997][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.467158][ T295] binder: 295:295 ioctl c0306201 20000580 returned -22 [ 24.473203][ T25] CR2: 00007f0ecc9c30d0 CR3: 000000000660f000 CR4: 00000000003506a0 [ 24.473216][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.489526][ T296] binder: BINDER_SET_CONTEXT_MGR already set [ 24.496127][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [pid 296] ioctl(3, BINDER_SET_CONTEXT_MGR_EXT, 0x20000300) = -1 EBUSY (Device or resource busy) [pid 296] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 4 [pid 296] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 5 [pid 296] ioctl(5, BINDER_WRITE_READ, 0x20000000) = 0 [pid 296] dup3(5, 4, 0) = 4 [ 24.502135][ T296] binder: 296:296 ioctl 4018620d 20000300 returned -16 [ 24.509597][ T25] Kernel panic - not syncing: Fatal exception [ 24.518013][ T296] binder: 296:296 unknown command 0 [ 24.522371][ T25] Kernel Offset: disabled [ 24.531528][ T25] Rebooting in 86400 seconds..