/system/bin/su: No such file or directory

[shandongtlb]

Please check before submitting an issue

• I have searched the issues and haven't found anything relevant
• I will upload bugreport file in KernelSU Manager - Settings - Report log
• I know how to reproduce the issue which may not be specific to my device

Describe the bug

之前还好好的，更新了1.0之后就这样了，dmesg没发现异常
其他终端类app均提示无su，使用mt浏览器也未发现有su
内核官网gki模式，自编译gki以及lkm模式均复现

To Reproduce

No response

Expected behavior

No response

Screenshots

No response

Logs

No response

Device info

• Device: s23u
• OS Version: oneui5.1
• KernelSU Version: 1.0
• Kernel Version: 5.15.78 gki

Additional context

No response

[tiann]

你装的是不是 32 位的应用

[shandongtlb]

貌似是system挂载只读导致的，可是刷了读写模块还不行

[shandongtlb]

你装的是不是 32 位的应用

你指的是ksu的APP32位吗，貌似只有64一个版本
其他终端类都是64的

[shandongtlb]

你装的是不是 32 位的应用

我专门看了一下，就算模块已经挂载读写，/system/bin/里面也没有su

[tiann]

su 文件本来就不存在。你直接运行 /system/bin/su 是什么结果？

[shandongtlb]

su 文件本来就不存在。你直接运行 /system/bin/su 是什么结果？

not found

[shandongtlb]

换了几个APP，都一样的结果

[shandongtlb]

juicessh和termux 都不行

[fsxitutu]

juicessh和termux 都不行

如果你是使用termux的google play版本，请换回f-droid版本。实测google play版本在termux环境内无法识别kernelsu的su命令(failsafe环境可使用su)。

[shandongtlb]

juicessh和termux 都不行

如果你是使用termux的google play版本，请换回f-droid版本。实测google play版本在termux环境内无法识别kernelsu的su命令(failsafe环境可使用su)。

可是我得用nethunter的终端，不行，现在换回magisk了，先将就着

[5ec1cff]

如果还想在用 ksu 的情况下正常使用 play 版 termux ，可以把你的 su 脚本 ($PREFIX/bin/su) 换成下面的代码

if [ -n "$LD_PRELOAD" ]; then
 unset LD_PRELOAD LD_LIBRARY_PATH
 exec /system/bin/sh $0 "$@"
fi
exec /system/bin/su "$@"

[bgaojin]

我遇到的问题 设置shell root以后，linux(5.15.0-107-generic)下打开终端 adb shell 输入su 提示/system/bin/su: 没有那个文件或目录
用的0.9.5版本，手机内核4.4 自己编译，其他app root正常。之前使用的是0.7.6版本 功能正常，升级0.9.5以后遇到这个问题,代码申请su一切正常

[aviraxp]

如果还想在用 ksu 的情况下正常使用 play 版 termux ，可以把你的 su 脚本 ($PREFIX/bin/su) 换成下面的代码

if [ -n "$LD_PRELOAD" ]; then
 unset LD_PRELOAD LD_LIBRARY_PATH
 exec /system/bin/sh $0 "$@"
fi
exec /system/bin/su "$@"

termux-play-store/termux-tools@9187cfa

[kongle233]

我也遇见了同样的问题，经过我的测试,内核ksu版本大于等于9.4就会出现这个问题，目前尚未解决

[hamjin]

ssh-iSowUqgFMj6LkxsGWZ7iCA==/lib/arm64/libcom_sonelli_bash.so -c su --help 2>&1 | grep su                             <
execve("/data/app/~~1_FVbQm4Aqq2x6NeV25AuQ==/com.sonelli.juicessh-iSowUqgFMj6LkxsGWZ7iCA==/lib/arm64/libcom_sonelli_bash.so", ["/data/app/~~1_FVbQm4Aqq2x6NeV25A"..., "-c", "su", "--help"], 0x7feebc97c8 /* 26 vars */strace: [ Process PID=19422 runs in 32 bit mode. ]
strace: WARNING: Proper structure decoding for this personality is not supported, please consider building strace with mpers support enabled.
fstatat64(AT_FDCWD, "/system/etc/ld.config.arm.txt", 0xfff2cad8, 0) = -1 ENOENT (No such file or directory)
read(3, "oid.hardware.confirmationui-supp"..., 4096) = 4096
faccessat(AT_FDCWD, "/data/nativetest/odm", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/nativetest64/odm", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/benchmarktest/odm", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/benchmarktest64/odm", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/nativetest/vendor", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/nativetest64/vendor", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/benchmarktest/vendor", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/benchmarktest64/vendor", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/nativetest/unrestricted", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/nativetest64/unrestricted", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/data/local/tmp/isolated", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/product/lib/vndk-sp", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/product/lib/vndk-sp", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/odm/lib/vndk-sp", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/odm/lib/vndk-sp", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/vendor/lib/vndk-sp", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/vendor/lib/vndk-sp", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.resolv/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.resolv/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.appsearch/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.appsearch/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.uwb/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.uwb/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.adservices/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.adservices/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.virt/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.virt/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/apex/com.android.extservices/lib", O_RDONLY|O_LARGEFILE|O_CLOEXEC|O_PATH) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.extservices/lib", 0xfff2a820, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/product/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.runtime/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/apex/com.android.art/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/system_ext/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/system/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/system/xbin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/odm/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/vendor/bin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
fstatat64(AT_FDCWD, "/vendor/xbin/su", 0xfff2eac8, 0) = -1 ENOENT (No such file or directory)
write(2, "--help: su: command not found\n", 30--help: su: command not found

JuiceSSH(com.sonelli.juicessh) version 3.2.2(Google Play Store) 看上去不会直接execve
edit: commit 815f4d0 可能漏hook了fstatat64？
edit2: hook点newfstatat 换成vfs_fstat(at)看上去会更好？这两个函数都在linux/fs.h里面且不是static。
https://elixir.bootlin.com/linux/v5.10.210/source/include/linux/fs.h#L3180
https://elixir.bootlin.com/linux/v5.15.157/source/include/linux/fs.h#L3377
https://elixir.bootlin.com/linux/v6.1.87/source/include/linux/fs.h#L3360
https://elixir.bootlin.com/linux/v6.6.35/source/include/linux/fs.h#L3097