https://github.com/torvalds/linux
Revision 3ff9c075cc767b3060bdac12da72fc94dd7da1b8 authored by Masami Hiramatsu on 23 February 2019, 16:49:52 UTC, committed by Ingo Molnar on 19 April 2019, 12:26:05 UTC
Verify the stack frame pointer on kretprobe trampoline handler, If the stack frame pointer does not match, it skips the wrong entry and tries to find correct one. This can happen if user puts the kretprobe on the function which can be used in the path of ftrace user-function call. Such functions should not be probed, so this adds a warning message that reports which function should be blacklisted. Tested-by: Andrea Righi <righi.andrea@gmail.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/155094059185.6137.15527904013362842072.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 parent 3fe3331
Tip revision: 3ff9c075cc767b3060bdac12da72fc94dd7da1b8 authored by Masami Hiramatsu on 23 February 2019, 16:49:52 UTC
x86/kprobes: Verify stack frame on kretprobe
x86/kprobes: Verify stack frame on kretprobe
Tip revision: 3ff9c07
| File | Mode | Size |
|---|---|---|
| atomic | ||
| basic | ||
| coccinelle | ||
| dtc | ||
| gcc-plugins | ||
| gdb | ||
| genksyms | ||
| kconfig | ||
| ksymoops | ||
| mod | ||
| package | ||
| selinux | ||
| tracing | ||
| .gitignore | -rw-r--r-- | 145 bytes |
| Kbuild.include | -rw-r--r-- | 13.0 KB |
| Kconfig.include | -rw-r--r-- | 852 bytes |
| Lindent | -rwxr-xr-x | 502 bytes |
| Makefile | -rw-r--r-- | 1.6 KB |
| Makefile.asm-generic | -rw-r--r-- | 1.8 KB |
| Makefile.build | -rw-r--r-- | 17.0 KB |
| Makefile.clean | -rw-r--r-- | 2.8 KB |
| Makefile.dtbinst | -rw-r--r-- | 1.1 KB |
| Makefile.extrawarn | -rw-r--r-- | 2.7 KB |
| Makefile.gcc-plugins | -rw-r--r-- | 2.4 KB |
| Makefile.headersinst | -rw-r--r-- | 3.8 KB |
| Makefile.host | -rw-r--r-- | 6.3 KB |
| Makefile.kasan | -rw-r--r-- | 1.4 KB |
| Makefile.kcov | -rw-r--r-- | 319 bytes |
| Makefile.lib | -rw-r--r-- | 15.0 KB |
| Makefile.modbuiltin | -rw-r--r-- | 1.7 KB |
| Makefile.modinst | -rw-r--r-- | 1.1 KB |
| Makefile.modpost | -rw-r--r-- | 5.3 KB |
| Makefile.modsign | -rw-r--r-- | 897 bytes |
| Makefile.ubsan | -rw-r--r-- | 926 bytes |
| adjust_autoksyms.sh | -rwxr-xr-x | 2.8 KB |
| asn1_compiler.c | -rw-r--r-- | 35.5 KB |
| bin2c.c | -rw-r--r-- | 743 bytes |
| bloat-o-meter | -rwxr-xr-x | 3.3 KB |
| bootgraph.pl | -rwxr-xr-x | 6.3 KB |
| bpf_helpers_doc.py | -rwxr-xr-x | 15.5 KB |
| cc-can-link.sh | -rwxr-xr-x | 166 bytes |
| check_extable.sh | -rwxr-xr-x | 4.9 KB |
| checkincludes.pl | -rwxr-xr-x | 1.9 KB |
| checkkconfigsymbols.py | -rwxr-xr-x | 15.5 KB |
| checkpatch.pl | -rwxr-xr-x | 196.9 KB |
| checkstack.pl | -rwxr-xr-x | 5.3 KB |
| checksyscalls.sh | -rwxr-xr-x | 7.3 KB |
| checkversion.pl | -rwxr-xr-x | 1.9 KB |
| clang-version.sh | -rwxr-xr-x | 527 bytes |
| cleanfile | -rwxr-xr-x | 3.5 KB |
| cleanpatch | -rwxr-xr-x | 5.1 KB |
| coccicheck | -rwxr-xr-x | 7.2 KB |
| config | -rwxr-xr-x | 4.5 KB |
| conmakehash.c | -rw-r--r-- | 6.0 KB |
| const_structs.checkpatch | -rw-r--r-- | 964 bytes |
| decode_stacktrace.sh | -rwxr-xr-x | 3.9 KB |
| decodecode | -rwxr-xr-x | 2.6 KB |
| depmod.sh | -rwxr-xr-x | 1.3 KB |
| diffconfig | -rwxr-xr-x | 3.7 KB |
| documentation-file-ref-check | -rwxr-xr-x | 3.7 KB |
| export_report.pl | -rwxr-xr-x | 4.5 KB |
| extract-cert.c | -rw-r--r-- | 3.5 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 | 6.2 KB |
| file-size.sh | -rwxr-xr-x | 86 bytes |
| find-unused-docs.sh | -rwxr-xr-x | 1.3 KB |
| gcc-goto.sh | -rwxr-xr-x | 511 bytes |
| gcc-ld | -rwxr-xr-x | 711 bytes |
| gcc-plugin.sh | -rwxr-xr-x | 1.1 KB |
| gcc-version.sh | -rwxr-xr-x | 588 bytes |
| gcc-x86_32-has-stack-protector.sh | -rwxr-xr-x | 173 bytes |
| gcc-x86_64-has-stack-protector.sh | -rwxr-xr-x | 198 bytes |
| gen_compile_commands.py | -rwxr-xr-x | 5.6 KB |
| gen_ksymdeps.sh | -rwxr-xr-x | 399 bytes |
| get_dvb_firmware | -rwxr-xr-x | 25.2 KB |
| get_maintainer.pl | -rwxr-xr-x | 65.8 KB |
| gfp-translate | -rwxr-xr-x | 1.7 KB |
| headerdep.pl | -rwxr-xr-x | 3.5 KB |
| headers.sh | -rwxr-xr-x | 512 bytes |
| headers_check.pl | -rwxr-xr-x | 3.7 KB |
| headers_install.sh | -rwxr-xr-x | 1.4 KB |
| insert-sys-cert.c | -rw-r--r-- | 8.9 KB |
| kallsyms.c | -rw-r--r-- | 17.9 KB |
| kernel-doc | -rwxr-xr-x | 60.7 KB |
| ld-version.sh | -rwxr-xr-x | 269 bytes |
| leaking_addresses.pl | -rwxr-xr-x | 12.8 KB |
| link-vmlinux.sh | -rwxr-xr-x | 6.1 KB |
| makelst | -rwxr-xr-x | 808 bytes |
| markup_oops.pl | -rwxr-xr-x | 8.1 KB |
| mkcompile_h | -rwxr-xr-x | 2.5 KB |
| mkmakefile | -rwxr-xr-x | 866 bytes |
| mksysmap | -rwxr-xr-x | 1.3 KB |
| mkuboot.sh | -rwxr-xr-x | 414 bytes |
| module-common.lds | -rw-r--r-- | 901 bytes |
| namespace.pl | -rwxr-xr-x | 13.0 KB |
| objdiff | -rwxr-xr-x | 2.8 KB |
| parse-maintainers.pl | -rw-r--r-- | 3.7 KB |
| patch-kernel | -rwxr-xr-x | 9.9 KB |
| pnmtologo.c | -rw-r--r-- | 11.9 KB |
| profile2linkerlist.pl | -rwxr-xr-x | 414 bytes |
| prune-kernel | -rwxr-xr-x | 708 bytes |
| recordmcount.c | -rw-r--r-- | 16.7 KB |
| recordmcount.h | -rw-r--r-- | 16.4 KB |
| recordmcount.pl | -rwxr-xr-x | 18.7 KB |
| setlocalversion | -rwxr-xr-x | 4.3 KB |
| show_delta | -rwxr-xr-x | 3.0 KB |
| sign-file.c | -rw-r--r-- | 9.8 KB |
| sortextable.c | -rw-r--r-- | 8.4 KB |
| sortextable.h | -rw-r--r-- | 5.5 KB |
| spdxcheck-test.sh | -rw-r--r-- | 323 bytes |
| spdxcheck.py | -rwxr-xr-x | 9.8 KB |
| spelling.txt | -rw-r--r-- | 28.1 KB |
| sphinx-pre-install | -rwxr-xr-x | 14.0 KB |
| split-man.pl | -rwxr-xr-x | 600 bytes |
| stackdelta | -rwxr-xr-x | 1.8 KB |
| stackusage | -rwxr-xr-x | 794 bytes |
| subarch.include | -rw-r--r-- | 641 bytes |
| tags.sh | -rwxr-xr-x | 10.0 KB |
| unifdef.c | -rw-r--r-- | 34.8 KB |
| ver_linux | -rwxr-xr-x | 2.7 KB |
| xen-hypercalls.sh | -rw-r--r-- | 386 bytes |
| xz_wrap.sh | -rwxr-xr-x | 562 bytes |
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