https://github.com/torvalds/linux
Revision 70effdc3756c924f4a2b6af1ec4e2e92e18e1b45 authored by Andrey Konovalov on 26 February 2022, 03:10:59 UTC, committed by Linus Torvalds on 26 February 2022, 17:51:17 UTC
With HW_TAGS KASAN and kasan.stacktrace=off, the cache created in the
kmem_cache_double_destroy() test might get merged with an existing one.
Thus, the first kmem_cache_destroy() call won't actually destroy it but
will only decrease the refcount. This causes the test to fail.
Provide an empty constructor for the created cache to prevent the cache
from getting merged.
Link: https://lkml.kernel.org/r/b597bd434c49591d8af00ee3993a42c609dc9a59.1644346040.git.andreyknvl@google.com
Fixes: f98f966cd750 ("kasan: test: add test case for double-kmem_cache_destroy()")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent db110a9
Tip revision: 70effdc3756c924f4a2b6af1ec4e2e92e18e1b45 authored by Andrey Konovalov on 26 February 2022, 03:10:59 UTC
kasan: test: prevent cache merging in kmem_cache_double_destroy
kasan: test: prevent cache merging in kmem_cache_double_destroy
Tip revision: 70effdc
| 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-- | 146 bytes |
| Kbuild.include | -rw-r--r-- | 7.3 KB |
| Kconfig.include | -rw-r--r-- | 2.6 KB |
| Lindent | -rwxr-xr-x | 502 bytes |
| Makefile | -rw-r--r-- | 1.4 KB |
| Makefile.asm-generic | -rw-r--r-- | 1.8 KB |
| Makefile.build | -rw-r--r-- | 19.2 KB |
| Makefile.clang | -rw-r--r-- | 1.6 KB |
| Makefile.clean | -rw-r--r-- | 2.2 KB |
| Makefile.compiler | -rw-r--r-- | 2.7 KB |
| Makefile.debug | -rw-r--r-- | 706 bytes |
| Makefile.dtbinst | -rw-r--r-- | 999 bytes |
| Makefile.extrawarn | -rw-r--r-- | 2.8 KB |
| Makefile.gcc-plugins | -rw-r--r-- | 2.6 KB |
| Makefile.headersinst | -rw-r--r-- | 2.9 KB |
| Makefile.host | -rw-r--r-- | 4.6 KB |
| Makefile.kasan | -rw-r--r-- | 1.7 KB |
| Makefile.kcov | -rw-r--r-- | 333 bytes |
| Makefile.kcsan | -rw-r--r-- | 1004 bytes |
| Makefile.lib | -rw-r--r-- | 19.0 KB |
| Makefile.modfinal | -rw-r--r-- | 2.7 KB |
| Makefile.modinst | -rw-r--r-- | 2.4 KB |
| Makefile.modpost | -rw-r--r-- | 4.4 KB |
| Makefile.package | -rw-r--r-- | 6.9 KB |
| Makefile.ubsan | -rw-r--r-- | 770 bytes |
| Makefile.userprogs | -rw-r--r-- | 1.6 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 | 3.4 KB |
| bootgraph.pl | -rwxr-xr-x | 5.6 KB |
| bpf_doc.py | -rwxr-xr-x | 25.0 KB |
| cc-can-link.sh | -rwxr-xr-x | 166 bytes |
| cc-version.sh | -rwxr-xr-x | 1.5 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 | 224.7 KB |
| checkstack.pl | -rwxr-xr-x | 5.9 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 | 6.6 KB |
| decodecode | -rwxr-xr-x | 2.9 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 | 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-x86_32-has-stack-protector.sh | -rwxr-xr-x | 408 bytes |
| gcc-x86_64-has-stack-protector.sh | -rwxr-xr-x | 198 bytes |
| gen_autoksyms.sh | -rwxr-xr-x | 1.4 KB |
| gen_ksymdeps.sh | -rwxr-xr-x | 556 bytes |
| generate_initcall_order.pl | -rwxr-xr-x | 5.9 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 | 14.3 KB |
| get_maintainer.pl | -rwxr-xr-x | 67.1 KB |
| gfp-translate | -rwxr-xr-x | 1.7 KB |
| headerdep.pl | -rwxr-xr-x | 3.5 KB |
| headers_install.sh | -rwxr-xr-x | 3.4 KB |
| insert-sys-cert.c | -rw-r--r-- | 8.9 KB |
| jobserver-exec | -rwxr-xr-x | 2.2 KB |
| kallsyms.c | -rw-r--r-- | 18.1 KB |
| kernel-doc | -rwxr-xr-x | 68.9 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 | 10.8 KB |
| makelst | -rwxr-xr-x | 808 bytes |
| markup_oops.pl | -rwxr-xr-x | 7.9 KB |
| min-tool-version.sh | -rwxr-xr-x | 558 bytes |
| mkcompile_h | -rwxr-xr-x | 2.5 KB |
| mksysmap | -rwxr-xr-x | 1.3 KB |
| mkuboot.sh | -rwxr-xr-x | 414 bytes |
| module.lds.S | -rw-r--r-- | 1.5 KB |
| modules-check.sh | -rwxr-xr-x | 427 bytes |
| nsdeps | -rw-r--r-- | 1.7 KB |
| objdiff | -rwxr-xr-x | 2.8 KB |
| pahole-flags.sh | -rwxr-xr-x | 519 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 | 708 bytes |
| recordmcount.c | -rw-r--r-- | 16.7 KB |
| recordmcount.h | -rw-r--r-- | 19.4 KB |
| recordmcount.pl | -rwxr-xr-x | 17.6 KB |
| remove-stale-files | -rwxr-xr-x | 1.6 KB |
| setlocalversion | -rwxr-xr-x | 3.6 KB |
| show_delta | -rwxr-xr-x | 3.0 KB |
| sign-file.c | -rw-r--r-- | 9.8 KB |
| sorttable.c | -rw-r--r-- | 8.8 KB |
| sorttable.h | -rw-r--r-- | 12.9 KB |
| spdxcheck-test.sh | -rw-r--r-- | 277 bytes |
| spdxcheck.py | -rwxr-xr-x | 10.1 KB |
| spelling.txt | -rw-r--r-- | 32.2 KB |
| sphinx-pre-install | -rwxr-xr-x | 24.4 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-- | 619 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 | 10.4 KB |
| test_fortify.sh | -rw-r--r-- | 1.8 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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