./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3777709169

<...>
Warning: Permanently added '10.128.1.216' (ED25519) to the list of known hosts.
execve("./syz-executor3777709169", ["./syz-executor3777709169"], 0x7ffd54295710 /* 10 vars */) = 0
brk(NULL)                               = 0x555587a5f000
brk(0x555587a5fd00)                     = 0x555587a5fd00
arch_prctl(ARCH_SET_FS, 0x555587a5f380) = 0
set_tid_address(0x555587a5f650)         = 288
set_robust_list(0x555587a5f660, 24)     = 0
rseq(0x555587a5fca0, 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-executor3777709169", 4096) = 28
getrandom("\xe6\xd4\x3f\x19\x4e\x71\x2d\x73", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555587a5fd00
brk(0x555587a80d00)                     = 0x555587a80d00
brk(0x555587a81000)                     = 0x555587a81000
mprotect(0x7fab952b6000, 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=0x555587a5f650) = 289
./strace-static-x86_64: Process 289 attached
[pid   289] set_robust_list(0x555587a5f660, 24) = 0
[pid   289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   289] getppid()                   = 0
[pid   289] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   289] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   289] unshare(CLONE_NEWNS)        = 0
[pid   289] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   289] unshare(CLONE_NEWCGROUP)    = 0
[pid   289] unshare(CLONE_NEWUTS)       = 0
[pid   289] unshare(CLONE_SYSVSEM)      = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   289] getpid()                    = 1
[pid   289] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid   289] unshare(CLONE_NEWNET)       = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "0 65535", 7)      = 7
[pid   289] close(3)                    = 0
[pid   289] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid   289] write(3, "100000", 6)       = 6
[pid   289] close(3)                    = 0
[pid   289] mkdir("./syz-tmp", 0777)    = 0
[pid   289] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot", 0777) = 0
[pid   289] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid   289] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid   289] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid   289] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   289] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid   289] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid   289] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid   289] mkdir("./syz-tmp/pivot", 0777) = 0
[pid   289] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid   289] chdir("/")                  = 0
[   22.067092][   T24] audit: type=1400 audit(1731408735.910:66): avc:  denied  { execmem } for  pid=288 comm="syz-executor377" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.075404][   T24] audit: type=1400 audit(1731408735.920:67): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[pid   289] umount2("./pivot", MNT_DETACH) = 0
[pid   289] chroot("./newroot")         = 0
[pid   289] chdir("/")                  = 0
[pid   289] mkdir("/dev/binderfs", 0777) = 0
[pid   289] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   289] symlink("/dev/binderfs", "./binderfs") = 0
[pid   289] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587a5f650) = 2
./strace-static-x86_64: Process 290 attached
[pid   290] set_robust_list(0x555587a5f660, 24) = 0
[pid   290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   290] setpgid(0, 0)               = 0
[pid   290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   290] write(3, "1000", 4)         = 4
executing program
[pid   290] close(3)                    = 0
[pid   290] write(1, "executing program\n", 18) = 18
[pid   290] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3
[pid   290] ioctl(3, BINDER_SET_CONTEXT_MGR_EXT, 0x20000300) = 0
[pid   290] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 4
[pid   290] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 5
[pid   290] ioctl(5, BINDER_WRITE_READ, 0x20000000) = 0
[pid   290] dup3(5, 4, 0)               = 4
[   22.098049][   T24] audit: type=1400 audit(1731408735.950:68): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/root/syz-tmp" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   22.121118][   T24] audit: type=1400 audit(1731408735.950:69): avc:  denied  { mount } for  pid=289 comm="syz-executor377" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1
[   22.131510][  T290] binder: 290:290 unknown command 0
[pid   290] ioctl(4, BINDER_WRITE_READ, 0x20000580) = -1 EINVAL (Invalid argument)
[pid   290] close(3)                    = 0
[pid   290] close(4)                    = 0
[   22.144044][   T24] audit: type=1400 audit(1731408735.950:70): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/root/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1
[   22.148431][  T290] binder: 290:290 ioctl c0306201 20000580 returned -22
[   22.171783][   T24] audit: type=1400 audit(1731408735.950:71): avc:  denied  { mount } for  pid=289 comm="syz-executor377" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1
[   22.200236][   T24] audit: type=1400 audit(1731408735.950:72): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/root/syz-tmp/newroot/sys/kernel/debug" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=dir permissive=1
[   22.201413][   T25] ==================================================================
[   22.225778][   T24] audit: type=1400 audit(1731408735.950:73): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/root/syz-tmp/newroot/proc/sys/fs/binfmt_misc" dev="proc" ino=1572 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:sysctl_fs_t tclass=dir permissive=1
[   22.233125][   T25] BUG: KASAN: use-after-free in __list_del_entry_valid+0x2f/0x120
[   22.233134][   T25] Read of size 8 at addr ffff88810c9f9488 by task kworker/1:1/25
[   22.233137][   T25] 
[   22.233150][   T25] CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 5.10.226-syzkaller-00001-g6a01908517df #0
[   22.233164][   T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   22.295769][   T25] Workqueue: events binder_deferred_func
[   22.301231][   T25] Call Trace:
[   22.304358][   T25]  dump_stack_lvl+0x1e2/0x24b
[   22.308868][   T25]  ? bfq_pos_tree_add_move+0x43b/0x43b
[   22.314165][   T25]  ? panic+0x812/0x812
[   22.318071][   T25]  print_address_description+0x81/0x3b0
[   22.323455][   T25]  ? ____kasan_slab_free+0x12c/0x160
[   22.328569][   T25]  kasan_report+0x179/0x1c0
[   22.332908][   T25]  ? __list_del_entry_valid+0x2f/0x120
[   22.338211][   T25]  ? __list_del_entry_valid+0x2f/0x120
[   22.343503][   T25]  __asan_report_load8_noabort+0x14/0x20
[   22.348968][   T25]  __list_del_entry_valid+0x2f/0x120
[   22.354113][   T25]  binder_release_work+0xcd/0x680
[   22.358948][   T25]  binder_deferred_func+0x1847/0x1bc0
[   22.364153][   T25]  ? read_word_at_a_time+0x12/0x20
[   22.369102][   T25]  process_one_work+0x6dc/0xbd0
[   22.373788][   T25]  worker_thread+0xaea/0x1510
[   22.378308][   T25]  ? _raw_spin_lock+0x1b0/0x1b0
[   22.382991][   T25]  kthread+0x34b/0x3d0
[   22.386896][   T25]  ? worker_clr_flags+0x180/0x180
[   22.391753][   T25]  ? kthread_blkcg+0xd0/0xd0
[   22.396178][   T25]  ret_from_fork+0x1f/0x30
[   22.400428][   T25] 
[   22.402598][   T25] Allocated by task 290:
[   22.406696][   T25]  ____kasan_kmalloc+0xdb/0x110
[   22.411368][   T25]  __kasan_kmalloc+0x9/0x10
[   22.415707][   T25]  kmem_cache_alloc_trace+0x18a/0x2e0
[   22.420915][   T25]  binder_thread_write+0x9ce/0x6c70
[   22.425956][   T25]  binder_ioctl_write_read+0x216/0x6a80
[   22.431330][   T25]  binder_ioctl+0x314/0x1e00
[   22.435755][   T25]  __se_sys_ioctl+0x114/0x190
[   22.440269][   T25]  __x64_sys_ioctl+0x7b/0x90
[   22.444694][   T25]  do_syscall_64+0x34/0x70
[   22.448954][   T25]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.454669][   T25] 
[   22.456845][   T25] Freed by task 25:
[   22.460503][   T25]  kasan_set_track+0x4b/0x70
[   22.464928][   T25]  kasan_set_free_info+0x23/0x40
[   22.469696][   T25]  ____kasan_slab_free+0x121/0x160
[   22.474639][   T25]  __kasan_slab_free+0x11/0x20
[   22.479240][   T25]  slab_free_freelist_hook+0xc0/0x190
[   22.484447][   T25]  kfree+0xc3/0x270
[   22.488095][   T25]  binder_free_ref+0x128/0x260
[   22.492691][   T25]  binder_deferred_func+0x171c/0x1bc0
[   22.497899][   T25]  process_one_work+0x6dc/0xbd0
[   22.502585][   T25]  worker_thread+0xaea/0x1510
[   22.507103][   T25]  kthread+0x34b/0x3d0
[   22.511006][   T25]  ret_from_fork+0x1f/0x30
[   22.515256][   T25] 
[   22.517427][   T25] The buggy address belongs to the object at ffff88810c9f9480
[   22.517427][   T25]  which belongs to the cache kmalloc-64 of size 64
[   22.531141][   T25] The buggy address is located 8 bytes inside of
[   22.531141][   T25]  64-byte region [ffff88810c9f9480, ffff88810c9f94c0)
[   22.543981][   T25] The buggy address belongs to the page:
[   22.549473][   T25] page:ffffea0004327e40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10c9f9
[   22.559521][   T25] flags: 0x4000000000000200(slab)
[   22.564387][   T25] raw: 4000000000000200 ffffea000430a300 0000001300000013 ffff888100043800
[   22.572806][   T25] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[   22.581219][   T25] page dumped because: kasan: bad access detected
[   22.587477][   T25] page_owner tracks the page as allocated
[   22.593028][   T25] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 67, ts 3719652083, free_ts 3706482158
[   22.608562][   T25]  prep_new_page+0x166/0x180
[   22.612985][   T25]  get_page_from_freelist+0x2d8c/0x2f30
[   22.618369][   T25]  __alloc_pages_nodemask+0x435/0xaf0
[   22.623573][   T25]  new_slab+0x80/0x400
[   22.627483][   T25]  ___slab_alloc+0x302/0x4b0
[   22.631910][   T25]  __slab_alloc+0x63/0xa0
[   22.636075][   T25]  kmem_cache_alloc_trace+0x1bd/0x2e0
[   22.641281][   T25]  load_elf_binary+0x1ac5/0x2750
[   22.646057][   T25]  bprm_execve+0x81b/0x1600
[   22.650394][   T25]  do_execveat_common+0x959/0xac0
[   22.655255][   T25]  __x64_sys_execve+0x92/0xb0
[   22.659766][   T25]  do_syscall_64+0x34/0x70
[   22.664021][   T25]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.669743][   T25] page last free stack trace:
[   22.674264][   T25]  free_unref_page_prepare+0x2ae/0x2d0
[   22.679556][   T25]  free_the_page+0x9e/0x370
[   22.683896][   T25]  __free_pages+0x67/0xc0
[   22.688065][   T25]  __vunmap+0x7bc/0x8f0
[   22.692053][   T25]  free_work+0x5b/0x80
[   22.695959][   T25]  process_one_work+0x6dc/0xbd0
[   22.700646][   T25]  worker_thread+0xaea/0x1510
[   22.705159][   T25]  kthread+0x34b/0x3d0
[   22.709065][   T25]  ret_from_fork+0x1f/0x30
[   22.713315][   T25] 
[   22.715482][   T25] Memory state around the buggy address:
[   22.720955][   T25]  ffff88810c9f9380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   22.728856][   T25]  ffff88810c9f9400: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
[   22.736750][   T25] >ffff88810c9f9480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   22.744645][   T25]                       ^
[   22.748817][   T25]  ffff88810c9f9500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   22.756712][   T25]  ffff88810c9f9580: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   22.764610][   T25] ==================================================================
[   22.772507][   T25] Disabling lock debugging due to kernel taint
[   22.778725][   T25] general protection fault, probably for non-canonical address 0xfefffc1e80000003: 0000 [#1] PREEMPT SMP KASAN
[   22.790240][   T25] KASAN: maybe wild-memory-access in range [0xf80000f400000018-0xf80000f40000001f]
[   22.799351][   T25] CPU: 1 PID: 25 Comm: kworker/1:1 Tainted: G    B             5.10.226-syzkaller-00001-g6a01908517df #0
[   22.810367][   T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   22.820268][   T25] Workqueue: events binder_deferred_func
[   22.825738][   T25] RIP: 0010:__list_del_entry_valid+0x75/0x120
[   22.831636][   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
[   22.851073][   T25] RSP: 0018:ffffc900001afc20 EFLAGS: 00010a06
[   22.856974][   T25] RAX: 1f00001e80000003 RBX: ffff88810c140500 RCX: ffffffff8256ad19
[   22.864786][   T25] RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810c9f9480
[   22.872597][   T25] RBP: ffffc900001afc40 R08: ffffffff813e2a7b R09: 0000000000000003
[   22.880409][   T25] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
[   22.888220][   T25] R13: ffff88810c9f9480 R14: ffff88810c9f9480 R15: f80000f400000019
[   22.896032][   T25] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   22.904797][   T25] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.911220][   T25] CR2: 00007fab952ba0d0 CR3: 000000010d1ce000 CR4: 00000000003506a0
[   22.919032][   T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.926841][   T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.934651][   T25] Call Trace:
[   22.937785][   T25]  ? __die_body+0x62/0xb0
[   22.941946][   T25]  ? die_addr+0x9f/0xd0
[   22.945940][   T25]  ? exc_general_protection+0x3ff/0x490
[   22.951327][   T25]  ? check_panic_on_warn+0x65/0xb0
[   22.956268][   T25]  ? asm_exc_general_protection+0x1e/0x30
[   22.961823][   T25]  ? check_panic_on_warn+0x5b/0xb0
[   22.966769][   T25]  ? __list_del_entry_valid+0x49/0x120
[   22.972065][   T25]  ? __list_del_entry_valid+0x75/0x120
[   22.977363][   T25]  binder_release_work+0xcd/0x680
[   22.982221][   T25]  binder_deferred_func+0x1847/0x1bc0
[   22.987439][   T25]  ? read_word_at_a_time+0x12/0x20
[   22.992374][   T25]  process_one_work+0x6dc/0xbd0
[   22.997063][   T25]  worker_thread+0xaea/0x1510
[   23.001574][   T25]  ? _raw_spin_lock+0x1b0/0x1b0
[   23.006263][   T25]  kthread+0x34b/0x3d0
[   23.010170][   T25]  ? worker_clr_flags+0x180/0x180
[   23.015030][   T25]  ? kthread_blkcg+0xd0/0xd0
[   23.019455][   T25]  ret_from_fork+0x1f/0x30
[   23.023700][   T25] Modules linked in:
[   23.027608][   T25] ---[ end trace 18b1bc2e15668d4d ]---
[   23.032893][   T25] RIP: 0010:__list_del_entry_valid+0x75/0x120
[   23.038888][   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
[pid   290] close(5)                    = 0
[pid   290] close(6)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(7)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(8)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(9)                    = -1 EBADF (Bad file descriptor)
[pid   290] close(10)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(11)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(12)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(13)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(14)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(15)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(16)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(17)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(18)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(19)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(20)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(21)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(22)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(23)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(24)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(25)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(26)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(27)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(28)                   = -1 EBADF (Bad file descriptor)
[pid   290] close(29)                   = -1 EBADF (Bad file descriptor)
[pid   290] exit_group(0)               = ?
[pid   290] +++ exited with 0 +++
[pid   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587a5f650) = 3
./strace-static-x86_64: Process 292 attached
[pid   292] set_robust_list(0x555587a5f660, 24) = 0
[pid   292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   292] setpgid(0, 0)               = 0
[pid   292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   292] write(3, "1000", 4)         = 4
[pid   292] close(3)                    = 0
[pid   292] write(1, "executing program\n", 18executing program
) = 18
[pid   292] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3
[pid   292] ioctl(3, BINDER_SET_CONTEXT_MGR_EXT, 0x20000300) = 0
[pid   292] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 4
[pid   292] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 5
[   23.047247][   T24] audit: type=1400 audit(1731408735.950:74): avc:  denied  { unmount } for  pid=289 comm="syz-executor377" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   23.058268][   T25] RSP: 0018:ffffc900001afc20 EFLAGS: 00010a06
[   23.083568][   T25] RAX: 1f00001e80000003 RBX: ffff88810c140500 RCX: ffffffff8256ad19
[   23.083943][   T24] audit: type=1400 audit(1731408735.970:75): avc:  denied  { mounton } for  pid=289 comm="syz-executor377" path="/dev/binderfs" dev="devtmpfs" ino=509 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[   23.091400][   T25] RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810c9f9480
[pid   292] ioctl(5, BINDER_WRITE_READ, 0x20000000) = 0
[pid   292] dup3(5, 4, 0)               = 4
[pid   292] ioctl(4, BINDER_WRITE_READ, 0x20000580) = -1 EINVAL (Invalid argument)
[pid   292] close(3)                    = 0
[pid   292] close(4)                    = 0
[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   289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   289] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555587a5f650) = 4
./strace-static-x86_64: Process 293 attached
[   23.091416][   T25] RBP: ffffc900001afc40 R08: ffffffff813e2a7b R09: 0000000000000003
[   23.123715][  T292] binder: 292:292 unknown command 0
[   23.129665][   T25] R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
[   23.129675][   T25] R13: ffff88810c9f9480 R14: ffff88810c9f9480 R15: f80000f400000019
[   23.129684][   T25] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   23.129699][   T25] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.134912][  T292] binder: 292:292 ioctl c0306201 20000580 returned -22
[pid   293] set_robust_list(0x555587a5f660, 24) = 0
[pid   293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   293] setpgid(0, 0)               = 0
[pid   293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   293] write(3, "1000", 4)         = 4
[pid   293] close(3)                    = 0
[pid   293] write(1, "executing program\n", 18executing program
) = 18
[pid   293] openat(AT_FDCWD, "./binderfs/binder0", O_RDONLY) = 3
[   23.142518][   T25] CR2: 00007fab952ba0d0 CR3: 000000000660f000 CR4: 00000000003506a0
[   23.142527][   T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.142533][   T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.142545][   T25] Kernel panic - not syncing: Fatal exception
[   23.177424][  T293] binder: BINDER_SET_CONTEXT_MGR already set
[   23.180398][   T25] Kernel Offset: disabled
[   23.211861][   T25] Rebooting in 86400 seconds..