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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-19 17:02:56 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-19 17:02:56 -1000 |
| commit | 550a7e28d801d35dd23aa2cdd30b7a59e193e080 (patch) | |
| tree | 4a9cc3780a6a0cdc8b090dbeb5c887453ef2c768 /tools/testing/selftests/exec/Makefile | |
| parent | b9a3eae9453b7547e4ab27df53a2ee8c7eb90c01 (diff) | |
| parent | 87b76786cc04c8137133a360088d94ab2ed592ca (diff) | |
Merge tag 'vfs-7.4-rc1.binfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull binfmt updates from Christian Brauner:
"This only lets punctuation delimit a binfmt_misc register string.
Arbitrary delimiters never made sense and nothing uses them. Every new
flag shrank the set of possible delimiters and made extensions more
hazardous than they need to be. Letters, digits, whitespace, control
characters, bytes above 0x7f and the backslash now get EINVAL.
Everything deployed uses ':' anyway. This extends the fix that
rejected a flag character as the delimiter.
Selftests and documentation are included"
* tag 'vfs-7.4-rc1.binfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
binfmt_misc: document the field delimiter
selftests/exec: test delimiter restrictions
binfmt_misc: only let punctuation delimit a register string
Diffstat (limited to 'tools/testing/selftests/exec/Makefile')
| -rw-r--r-- | tools/testing/selftests/exec/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile index b640af8f02b5..2220ed345e92 100644 --- a/tools/testing/selftests/exec/Makefile +++ b/tools/testing/selftests/exec/Makefile @@ -45,6 +45,10 @@ TEST_GEN_FILES += binfmt_transparent_interp TEST_GEN_PROGS += binfmt_misc_loader TEST_GEN_FILES += binfmt_loader_payload binfmt_loader_payload_static +# Only ASCII punctuation delimits the fields of a register string, so a new +# flag character cannot change which strings register. No bpf toolchain. +TEST_GEN_PROGS += binfmt_misc_delim + # binfmt_misc bpf-backed ('B') handler test: a libbpf harness plus its # struct_ops objects and the test interpreter/app it routes between. Only # built when clang, bpftool, the vmlinux BTF and libbpf are all present |