https://github.com/torvalds/linux
Revision a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC, committed by Linus Torvalds on 01 December 2022, 21:14:21 UTC
The config to be able to inject error codes into any function annotated
with ALLOW_ERROR_INJECTION() is enabled when FUNCTION_ERROR_INJECTION is
enabled. But unfortunately, this is always enabled on x86 when KPROBES
is enabled, and there's no way to turn it off.
As kprobes is useful for observability of the kernel, it is useful to
have it enabled in production environments. But error injection should
be avoided. Add a prompt to the config to allow it to be disabled even
when kprobes is enabled, and get rid of the "def_bool y".
This is a kernel debug feature (it's in Kconfig.debug), and should have
never been something enabled by default.
Cc: stable@vger.kernel.org
Fixes: 540adea3809f6 ("error-injection: Separate error-injection from kprobe")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 355479c
Tip revision: a4412fdd49dc011bcc2c0d81ac4cab7457092650 authored by Steven Rostedt (Google) on 21 November 2022, 15:44:03 UTC
error-injection: Add prompt for function error injection
error-injection: Add prompt for function error injection
Tip revision: a4412fd
| File | Mode | Size |
|---|---|---|
| atomic | ||
| basic | ||
| clang-tools | ||
| coccinelle | ||
| dtc | ||
| dummy-tools | ||
| gcc-plugins | ||
| gdb | ||
| genksyms | ||
| kconfig | ||
| ksymoops | ||
| mod | ||
| package | ||
| selinux | ||
| tracing | ||
| .gitignore | -rw-r--r-- | 168 bytes |
| Kbuild.include | -rw-r--r-- | 8.3 KB |
| Kconfig.include | -rw-r--r-- | 2.6 KB |
| Lindent | -rwxr-xr-x | 502 bytes |
| Makefile | -rw-r--r-- | 1.5 KB |
| Makefile.asm-generic | -rw-r--r-- | 1.8 KB |
| Makefile.build | -rw-r--r-- | 17.6 KB |
| Makefile.clang | -rw-r--r-- | 1.7 KB |
| Makefile.clean | -rw-r--r-- | 1.9 KB |
| Makefile.compiler | -rw-r--r-- | 2.8 KB |
| Makefile.debug | -rw-r--r-- | 1000 bytes |
| Makefile.dtbinst | -rw-r--r-- | 999 bytes |
| Makefile.extrawarn | -rw-r--r-- | 3.5 KB |
| Makefile.gcc-plugins | -rw-r--r-- | 2.6 KB |
| Makefile.headersinst | -rw-r--r-- | 2.9 KB |
| Makefile.host | -rw-r--r-- | 5.7 KB |
| Makefile.kasan | -rw-r--r-- | 1.7 KB |
| Makefile.kcov | -rw-r--r-- | 333 bytes |
| Makefile.kcsan | -rw-r--r-- | 1004 bytes |
| Makefile.kmsan | -rw-r--r-- | 208 bytes |
| Makefile.lib | -rw-r--r-- | 20.5 KB |
| Makefile.modfinal | -rw-r--r-- | 2.9 KB |
| Makefile.modinst | -rw-r--r-- | 2.5 KB |
| Makefile.modpost | -rw-r--r-- | 4.4 KB |
| Makefile.package | -rw-r--r-- | 7.1 KB |
| Makefile.randstruct | -rw-r--r-- | 511 bytes |
| Makefile.ubsan | -rw-r--r-- | 770 bytes |
| Makefile.userprogs | -rw-r--r-- | 1.6 KB |
| Makefile.vmlinux | -rw-r--r-- | 1.4 KB |
| Makefile.vmlinux_o | -rw-r--r-- | 3.2 KB |
| adjust_autoksyms.sh | -rwxr-xr-x | 2.1 KB |
| as-version.sh | -rwxr-xr-x | 2.0 KB |
| asn1_compiler.c | -rw-r--r-- | 35.3 KB |
| bin2c.c | -rw-r--r-- | 743 bytes |
| bloat-o-meter | -rwxr-xr-x | 3.8 KB |
| bootgraph.pl | -rwxr-xr-x | 5.6 KB |
| bpf_doc.py | -rwxr-xr-x | 30.9 KB |
| cc-can-link.sh | -rwxr-xr-x | 166 bytes |
| cc-version.sh | -rwxr-xr-x | 1.5 KB |
| check-local-export | -rwxr-xr-x | 1.7 KB |
| check-sysctl-docs | -rwxr-xr-x | 4.4 KB |
| check_extable.sh | -rwxr-xr-x | 4.9 KB |
| checkdeclares.pl | -rwxr-xr-x | 1.1 KB |
| checkincludes.pl | -rwxr-xr-x | 1.9 KB |
| checkkconfigsymbols.py | -rwxr-xr-x | 15.4 KB |
| checkpatch.pl | -rwxr-xr-x | 227.4 KB |
| checkstack.pl | -rwxr-xr-x | 6.1 KB |
| checksyscalls.sh | -rwxr-xr-x | 7.4 KB |
| checkversion.pl | -rwxr-xr-x | 2.2 KB |
| cleanfile | -rwxr-xr-x | 3.5 KB |
| cleanpatch | -rwxr-xr-x | 5.1 KB |
| coccicheck | -rwxr-xr-x | 7.9 KB |
| config | -rwxr-xr-x | 4.7 KB |
| const_structs.checkpatch | -rw-r--r-- | 1.4 KB |
| decode_stacktrace.sh | -rwxr-xr-x | 7.2 KB |
| decodecode | -rwxr-xr-x | 4.5 KB |
| depmod.sh | -rwxr-xr-x | 1.4 KB |
| dev-needs.sh | -rwxr-xr-x | 6.1 KB |
| diffconfig | -rwxr-xr-x | 3.7 KB |
| documentation-file-ref-check | -rwxr-xr-x | 5.7 KB |
| export_report.pl | -rwxr-xr-x | 4.5 KB |
| extract-ikconfig | -rwxr-xr-x | 1.7 KB |
| extract-module-sig.pl | -rwxr-xr-x | 3.7 KB |
| extract-sys-certs.pl | -rwxr-xr-x | 3.7 KB |
| extract-vmlinux | -rwxr-xr-x | 1.7 KB |
| extract_xc3028.pl | -rwxr-xr-x | 44.6 KB |
| faddr2line | -rwxr-xr-x | 8.3 KB |
| file-size.sh | -rwxr-xr-x | 86 bytes |
| find-unused-docs.sh | -rwxr-xr-x | 1.3 KB |
| gcc-x86_32-has-stack-protector.sh | -rwxr-xr-x | 408 bytes |
| gcc-x86_64-has-stack-protector.sh | -rwxr-xr-x | 198 bytes |
| gen-randstruct-seed.sh | -rwxr-xr-x | 228 bytes |
| gen_autoksyms.sh | -rwxr-xr-x | 1.5 KB |
| gen_ksymdeps.sh | -rwxr-xr-x | 556 bytes |
| generate_initcall_order.pl | -rwxr-xr-x | 5.9 KB |
| generate_rust_analyzer.py | -rwxr-xr-x | 3.8 KB |
| generate_rust_target.rs | -rw-r--r-- | 5.2 KB |
| get_abi.pl | -rwxr-xr-x | 25.3 KB |
| get_dvb_firmware | -rwxr-xr-x | 24.5 KB |
| get_feat.pl | -rwxr-xr-x | 14.6 KB |
| get_maintainer.pl | -rwxr-xr-x | 67.2 KB |
| gfp-translate | -rwxr-xr-x | 1.7 KB |
| head-object-list.txt | -rw-r--r-- | 1.6 KB |
| headerdep.pl | -rwxr-xr-x | 3.5 KB |
| headers_install.sh | -rwxr-xr-x | 3.2 KB |
| insert-sys-cert.c | -rw-r--r-- | 8.9 KB |
| install.sh | -rwxr-xr-x | 986 bytes |
| is_rust_module.sh | -rwxr-xr-x | 565 bytes |
| jobserver-exec | -rwxr-xr-x | 2.2 KB |
| kallsyms.c | -rw-r--r-- | 19.5 KB |
| kernel-doc | -rwxr-xr-x | 65.5 KB |
| ld-version.sh | -rwxr-xr-x | 1.7 KB |
| leaking_addresses.pl | -rwxr-xr-x | 12.8 KB |
| link-vmlinux.sh | -rwxr-xr-x | 7.4 KB |
| makelst | -rwxr-xr-x | 808 bytes |
| markup_oops.pl | -rwxr-xr-x | 7.9 KB |
| min-tool-version.sh | -rwxr-xr-x | 554 bytes |
| mkcompile_h | -rwxr-xr-x | 642 bytes |
| mksysmap | -rwxr-xr-x | 1.6 KB |
| mkuboot.sh | -rwxr-xr-x | 414 bytes |
| module.lds.S | -rw-r--r-- | 1.3 KB |
| modules-check.sh | -rwxr-xr-x | 427 bytes |
| nsdeps | -rw-r--r-- | 1.6 KB |
| objdiff | -rwxr-xr-x | 2.8 KB |
| objdump-func | -rwxr-xr-x | 711 bytes |
| pahole-flags.sh | -rwxr-xr-x | 585 bytes |
| pahole-version.sh | -rwxr-xr-x | 269 bytes |
| parse-maintainers.pl | -rwxr-xr-x | 4.5 KB |
| patch-kernel | -rwxr-xr-x | 9.9 KB |
| profile2linkerlist.pl | -rwxr-xr-x | 414 bytes |
| prune-kernel | -rwxr-xr-x | 912 bytes |
| recordmcount.c | -rw-r--r-- | 16.7 KB |
| recordmcount.h | -rw-r--r-- | 19.4 KB |
| recordmcount.pl | -rwxr-xr-x | 17.5 KB |
| remove-stale-files | -rwxr-xr-x | 1.7 KB |
| rust_is_available.sh | -rwxr-xr-x | 5.6 KB |
| rust_is_available_bindgen_libclang.h | -rw-r--r-- | 91 bytes |
| setlocalversion | -rwxr-xr-x | 3.6 KB |
| show_delta | -rwxr-xr-x | 3.0 KB |
| sign-file.c | -rw-r--r-- | 9.9 KB |
| sorttable.c | -rw-r--r-- | 7.7 KB |
| sorttable.h | -rw-r--r-- | 12.9 KB |
| spdxcheck-test.sh | -rw-r--r-- | 284 bytes |
| spdxcheck.py | -rwxr-xr-x | 15.2 KB |
| spdxexclude | -rw-r--r-- | 417 bytes |
| spelling.txt | -rw-r--r-- | 32.5 KB |
| sphinx-pre-install | -rwxr-xr-x | 25.8 KB |
| split-man.pl | -rwxr-xr-x | 604 bytes |
| stackdelta | -rwxr-xr-x | 1.8 KB |
| stackusage | -rwxr-xr-x | 794 bytes |
| subarch.include | -rw-r--r-- | 647 bytes |
| syscallhdr.sh | -rwxr-xr-x | 1.9 KB |
| syscallnr.sh | -rwxr-xr-x | 1.5 KB |
| syscalltbl.sh | -rwxr-xr-x | 1.5 KB |
| tags.sh | -rwxr-xr-x | 10.2 KB |
| test_fortify.sh | -rw-r--r-- | 2.2 KB |
| tools-support-relr.sh | -rwxr-xr-x | 546 bytes |
| unifdef.c | -rw-r--r-- | 34.8 KB |
| ver_linux | -rwxr-xr-x | 2.6 KB |
| xen-hypercalls.sh | -rwxr-xr-x | 386 bytes |
| xz_wrap.sh | -rwxr-xr-x | 563 bytes |
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