From: kernel test robot <oliver.sang@intel.com>
To: Eric Biggers <ebiggers@google.com>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
<linux-arm-kernel@lists.infradead.org>,
<loongarch@lists.linux.dev>, <linux-s390@vger.kernel.org>,
<linux-crypto@vger.kernel.org>, <oliver.sang@intel.com>
Subject: [linus:master] [crypto] 40b9969796: UBSAN:unsigned-integer-overflow_in_lib/crypto/chacha20poly1305-selftest.c
Date: Wed, 28 May 2025 13:15:05 +0800 [thread overview]
Message-ID: <202505281024.f42beaa7-lkp@intel.com> (raw)
Hello,
by this commit, the config has below diff:
--- /pkg/linux/x86_64-randconfig-101-20250522/clang-20/d469eaed223fa485eabebd3bcd05ddd3c891f54e/.config 2025-05-23 23:44:56.781716572 +0800
+++ /pkg/linux/x86_64-randconfig-101-20250522/clang-20/40b9969796bfa49ed1b0f7ddc254f48cb2ac6d2c/.config 2025-05-24 02:08:29.858605300 +0800
@@ -4837,7 +4837,8 @@ CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
# CONFIG_CRYPTO_USER is not set
-CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
+CONFIG_CRYPTO_SELFTESTS=y
+# CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
# CONFIG_CRYPTO_NULL is not set
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=y
it seems tests are enabled then we observe the UBSAN issues
d469eaed223fa485 40b9969796bfa49ed1b0f7ddc25
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
:6 100% 6:6 dmesg.UBSAN:unsigned-integer-overflow_in_lib/crypto/chacha20poly1305-selftest.c
:6 100% 6:6 dmesg.UBSAN:unsigned-integer-overflow_in_lib/crypto/chacha20poly1305.c
it's hard for bot to apply this commit to previous commits in bisect, so we just
make out below report FYI that we observe UBSAN issues in boot tests.
kernel test robot noticed "UBSAN:unsigned-integer-overflow_in_lib/crypto/chacha20poly1305-selftest.c" on:
commit: 40b9969796bfa49ed1b0f7ddc254f48cb2ac6d2c ("crypto: testmgr - replace CRYPTO_MANAGER_DISABLE_TESTS with CRYPTO_SELFTESTS")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linux-next/master 176e917e010cb7dcc605f11d2bc33f304292482b]
in testcase: boot
config: x86_64-randconfig-101-20250522
compiler: clang-20
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202505281024.f42beaa7-lkp@intel.com
[ 12.442846][ T1] ------------[ cut here ]------------
[ 12.443261][ T1] UBSAN: unsigned-integer-overflow in lib/crypto/chacha20poly1305-selftest.c:8854:47
[ 12.444084][ T1] 16 - 114 cannot be represented in type 'size_t' (aka 'unsigned long')
[ 12.444682][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Tainted: G T 6.15.0-rc5-00342-g40b9969796bf #1 VOLUNTARY
[ 12.444688][ T1] Tainted: [T]=RANDSTRUCT
[ 12.444689][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 12.444691][ T1] Call Trace:
[ 12.444693][ T1] <TASK>
[ 12.444696][ T1] __dump_stack (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/dump_stack.c:95)
[ 12.444705][ T1] dump_stack_lvl (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/dump_stack.c:123 (discriminator 1))
[ 12.444709][ T1] dump_stack (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/dump_stack.c:130)
[ 12.444712][ T1] ubsan_epilogue (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/ubsan.c:232 (discriminator 2))
[ 12.444717][ T1] handle_overflow (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/ubsan.c:?)
[ 12.444729][ T1] __ubsan_handle_sub_overflow (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/ubsan.c:277)
[ 12.444732][ T1] chacha20poly1305_encrypt_bignonce (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/crypto/chacha20poly1305-selftest.c:?)
[ 12.444759][ T1] ? kasan_save_alloc_info (kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/generic.c:563 (discriminator 1))
[ 12.444766][ T1] chacha20poly1305_selftest_encrypt (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/crypto/chacha20poly1305-selftest.c:?)
[ 12.444772][ T1] chacha20poly1305_selftest (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/crypto/chacha20poly1305-selftest.c:8903 (discriminator 1))
[ 12.444787][ T1] chacha20poly1305_init (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/crypto/chacha20poly1305.c:362)
[ 12.444790][ T1] do_one_initcall (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1257)
[ 12.444793][ T1] ? blake2s_random_test (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/crypto/chacha20poly1305.c:360)
[ 12.444801][ T1] ? kasan_save_track (kbuild/obj/consumer/x86_64-randconfig-101-20250522/arch/x86/include/asm/current.h:25 (discriminator 3) kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/common.c:60 (discriminator 3) kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/common.c:69 (discriminator 3))
[ 12.444803][ T1] ? kasan_save_track (kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/common.c:48 kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/common.c:68)
[ 12.444804][ T1] ? kasan_save_alloc_info (kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/generic.c:563 (discriminator 1))
[ 12.444806][ T1] ? __kasan_kmalloc (kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/kasan/common.c:398)
[ 12.444808][ T1] ? __kmalloc_noprof (kbuild/obj/consumer/x86_64-randconfig-101-20250522/include/linux/kasan.h:260 kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/slub.c:4327 kbuild/obj/consumer/x86_64-randconfig-101-20250522/mm/slub.c:4339)
[ 12.444814][ T1] ? do_initcalls (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1329)
[ 12.444817][ T1] ? do_basic_setup (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1355)
[ 12.444824][ T1] ? trace_hardirqs_on (kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/trace/trace_preemptirq.c:80)
[ 12.444829][ T1] ? irqentry_exit (kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/entry/common.c:358)
[ 12.444834][ T1] ? sysvec_apic_timer_interrupt (kbuild/obj/consumer/x86_64-randconfig-101-20250522/arch/x86/kernel/apic/apic.c:1049 (discriminator 256))
[ 12.444840][ T1] ? do_initcall_level (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1303)
[ 12.444847][ T1] ? next_arg (kbuild/obj/consumer/x86_64-randconfig-101-20250522/lib/cmdline.c:273)
[ 12.444853][ T1] ? parameq (kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/params.c:90 (discriminator 1) kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/params.c:99 (discriminator 1))
[ 12.444858][ T1] ? parse_args (kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/params.c:153 kbuild/obj/consumer/x86_64-randconfig-101-20250522/kernel/params.c:186)
[ 12.444869][ T1] do_initcall_level (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1318 (discriminator 6))
[ 12.444874][ T1] do_initcalls (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1332 (discriminator 2))
[ 12.444878][ T1] do_basic_setup (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1355)
[ 12.444882][ T1] kernel_init_freeable (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1571)
[ 12.444885][ T1] ? rest_init (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1449)
[ 12.444887][ T1] kernel_init (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1459)
[ 12.444890][ T1] ? rest_init (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1449)
[ 12.444892][ T1] ret_from_fork (kbuild/obj/consumer/x86_64-randconfig-101-20250522/arch/x86/kernel/process.c:153)
[ 12.444895][ T1] ? rest_init (kbuild/obj/consumer/x86_64-randconfig-101-20250522/init/main.c:1449)
[ 12.444898][ T1] ret_from_fork_asm (kbuild/obj/consumer/x86_64-randconfig-101-20250522/arch/x86/entry/entry_64.S:255)
[ 12.444909][ T1] </TASK>
[ 12.475589][ T1] ---[ end trace ]---
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250528/202505281024.f42beaa7-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2025-05-28 5:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-28 5:15 kernel test robot [this message]
2025-05-28 6:14 ` [linus:master] [crypto] 40b9969796: UBSAN:unsigned-integer-overflow_in_lib/crypto/chacha20poly1305-selftest.c Eric Biggers
2025-05-28 16:45 ` Kees Cook
2025-05-28 16:58 ` Arnd Bergmann
2025-05-28 17:15 ` Jann Horn
2025-05-28 17:41 ` Kees Cook
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202505281024.f42beaa7-lkp@intel.com \
--to=oliver.sang@intel.com \
--cc=ebiggers@google.com \
--cc=herbert@gondor.apana.org.au \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=lkp@intel.com \
--cc=loongarch@lists.linux.dev \
--cc=oe-lkp@lists.linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).