Abhishek MishraandXiang Xiao 72192fc8bc fs/binfmt: Enforce POSIX execute permissions prior to binary load ...

Adds a pre-load permission check in exec_internal() to verify the
calling task has the required execute (x) bits for the target file.
Properly evaluates root (euid == 0), owner, group, and other permissions.

This ensures POSIX compliance and cleanly rejects unauthorized files
with -EACCES before they reach the ELF loader, preventing unnecessary
memory allocation and downstream hardware execution faults.

Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>

2026-06-17 17:11:07 +08:00

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libnxflat

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binfmt_checkexec.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

2026-06-17 17:11:07 +08:00

binfmt_copyactions.c

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binfmt_copyargv.c

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binfmt_dumpmodule.c

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binfmt_exec.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

2026-06-17 17:11:07 +08:00

binfmt_execmodule.c

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binfmt_execsymtab.c

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binfmt_exit.c

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binfmt_globals.c

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binfmt_initialize.c

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binfmt_loadmodule.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

2026-06-17 17:11:07 +08:00

binfmt_register.c

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binfmt_unloadmodule.c

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binfmt_unregister.c

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binfmt.h

fs/binfmt: Enforce POSIX execute permissions prior to binary load

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builtin.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

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CMakeLists.txt

fs/binfmt: Enforce POSIX execute permissions prior to binary load

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elf.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

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Kconfig

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Makefile

fs/binfmt: Enforce POSIX execute permissions prior to binary load

2026-06-17 17:11:07 +08:00

nxflat.c

fs/binfmt: Enforce POSIX execute permissions prior to binary load

2026-06-17 17:11:07 +08:00