| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20250421122239.4ae189d3@outsider.home>
Date: Mon, 21 Apr 2025 12:22:39 +0200
From: Erhard Furtner <erhard_f@...lbox.org>
To: kunit-dev@...glegroups.com
Cc: linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: WARNING: CPU: 27 PID: 7051 at lib/math/int_log.c:63
intlog2+0xaa/0xe0 at running int_log_kunit test (v6.15-rc1)
Greetings!
Still getting this warning in v6.15-rc3 at running running int_log_kunit test, also with a 'GCC14 -O2'-built kernel:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4436 at lib/math/int_log.c:63 intlog2+0xd3/0x110
Modules linked in: int_log_kunit fortify_kunit kunit snd_hrtimer snd_seq snd_seq_device fuse zram af_packet cfg80211 ccm algif_aead crypto_null des3_ede_x86_64 cbc des_generic libdes cmac md5 bnep bluetooth rfkill nls_iso8859_15 nls_cp437 vfat fat dm_crypt nhpoly1305_avx2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algif_skcipher snd_hda_codec_realtek sg snd_hda_codec_generic snd_hda_scodec_component pkcs8_key_parser snd_hda_codec_hdmi amd_atl amd64_edac nct6775 edac_mce_amd snd_hda_intel nct6775_core hwmon_vid radeon snd_intel_dspcfg snd_hda_codec video joydev uas usb_storage snd_hwdep backlight input_leds snd_hda_core drm_suballoc_helper led_class i2c_algo_bit snd_pcm kvm_amd drm_ttm_helper snd_timer ttm snd drm_exec soundcore drm_display_helper k10temp hwmon wmi_bmof wmi gpio_amdpt evdev gpio_generic button hid_generic usbhid hid efivarfs sha512_ssse3 sha256_ssse3 sha1_ssse3 sha1_generic aesni_intel gf128mul crypto_simd cryptd ccp xhci_pci xhci_hcd usbcore usb_common dm_mod
CPU: 1 UID: 0 PID: 4436 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3-Zen3 #11 PREEMPT
Tainted: [B]=BAD_PAGE, [N]=TEST
Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS L3.46 08/20/2024
RIP: 0010:intlog2+0xd3/0x110
Code: c1 e0 18 48 83 c4 08 89 d1 c1 e2 08 29 cb 01 d0 0f b7 db 0f af dd c1 eb 0f 01 d8 5b 5d 41 5c 31 d2 31 c9 31 ff e9 98 88 d7 fe <0f> 0b 31 c0 31 d2 31 c9 31 ff e9 89 88 d7 fe 89 44 24 04 e8 65 27
RSP: 0018:ffffc90000aafd38 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc9000531f548 RCX: 0000000000000000
RDX: 1ffffffff8353124 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff92000155fa9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffc1a98920
R13: 0000000000000000 R14: ffff888112a96400 R15: ffffc90000aafe18
FS: 0000000000000000(0000) GS:ffff888820ed7000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd26f0f000 CR3: 000000017a363000 CR4: 0000000000350ef0
Call Trace:
<TASK>
intlog2_test+0xcb/0x200 [int_log_kunit]
? intlog10_test+0x200/0x200 [int_log_kunit]
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
? ktime_get_ts64+0x7a/0x220
kunit_try_run_case+0x199/0x2b0 [kunit]
? srso_alias_return_thunk+0x5/0xfbef5
? kunit_try_run_case_cleanup+0xe0/0xe0 [kunit]
? srso_alias_return_thunk+0x5/0xfbef5
? do_raw_spin_unlock+0x4f/0x220
? kunit_try_run_case_cleanup+0xe0/0xe0 [kunit]
? kunit_mem_assert_format+0x460/0x460 [kunit]
kunit_generic_run_threadfn_adapter+0x7b/0xe0 [kunit]
kthread+0x349/0x6c0
? kthread_is_per_cpu+0xd0/0xd0
? kthread_is_per_cpu+0xd0/0xd0
? kthread_is_per_cpu+0xd0/0xd0
ret_from_fork+0x2b/0x70
? kthread_is_per_cpu+0xd0/0xd0
ret_from_fork_asm+0x11/0x20
</TASK>
---[ end trace 0000000000000000 ]---
ok 1 Log base 2 of 0
ok 2 Log base 2 of 1
ok 3 Log base 2 of 2
ok 4 Log base 2 of 3
ok 5 Log base 2 of 4
ok 6 Log base 2 of 8
ok 7 Log base 2 of 16
ok 8 Log base 2 of 32
ok 9 Log base 2 of MAX
# intlog2_test: pass:9 fail:0 skip:0 total:9
ok 1 intlog2_test
KTAP version 1
# Subtest: intlog10_test
------------[ cut here ]------------
WARNING: CPU: 23 PID: 4454 at lib/math/int_log.c:120 intlog10+0xe2/0x110
Modules linked in: int_log_kunit fortify_kunit kunit snd_hrtimer snd_seq snd_seq_device fuse zram af_packet cfg80211 ccm algif_aead crypto_null des3_ede_x86_64 cbc des_generic libdes cmac md5 bnep bluetooth rfkill nls_iso8859_15 nls_cp437 vfat fat dm_crypt nhpoly1305_avx2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algif_skcipher snd_hda_codec_realtek sg snd_hda_codec_generic snd_hda_scodec_component pkcs8_key_parser snd_hda_codec_hdmi amd_atl amd64_edac nct6775 edac_mce_amd snd_hda_intel nct6775_core hwmon_vid radeon snd_intel_dspcfg snd_hda_codec video joydev uas usb_storage snd_hwdep backlight input_leds snd_hda_core drm_suballoc_helper led_class i2c_algo_bit snd_pcm kvm_amd drm_ttm_helper snd_timer ttm snd drm_exec soundcore drm_display_helper k10temp hwmon wmi_bmof wmi gpio_amdpt evdev gpio_generic button hid_generic usbhid hid efivarfs sha512_ssse3 sha256_ssse3 sha1_ssse3 sha1_generic aesni_intel gf128mul crypto_simd cryptd ccp xhci_pci xhci_hcd usbcore usb_common dm_mod
CPU: 23 UID: 0 PID: 4454 Comm: kunit_try_catch Tainted: G B W N 6.15.0-rc3-Zen3 #11 PREEMPT
Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS L3.46 08/20/2024
RIP: 0010:intlog10+0xe2/0x110
Code: db 41 01 c4 0f af dd c1 eb 0f 42 8d 04 23 5b 5d 48 69 c0 a1 26 88 26 41 5c 41 5d 48 c1 e8 1f 31 d2 31 c9 31 ff e9 79 87 d7 fe <0f> 0b 31 c0 31 d2 31 c9 31 ff e9 6a 87 d7 fe e8 4a 26 73 ff e9 73
RSP: 0018:ffffc90001da7d38 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffc9000531f548 RCX: 0000000000000000
RDX: 1ffffffff83530d0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff920003b4fa9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffc1a98680
R13: 0000000000000000 R14: ffff888112a96400 R15: ffffc90001da7e18
FS: 0000000000000000(0000) GS:ffff8888219d7000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0454cf4590 CR3: 0000000152504000 CR4: 0000000000350ef0
Call Trace:
<TASK>
intlog10_test+0xcb/0x200 [int_log_kunit]
? _sub_I_65535_1+0x310/0x310 [led_class]
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
? ktime_get_ts64+0x7a/0x220
kunit_try_run_case+0x199/0x2b0 [kunit]
? srso_alias_return_thunk+0x5/0xfbef5
? kunit_try_run_case_cleanup+0xe0/0xe0 [kunit]
? srso_alias_return_thunk+0x5/0xfbef5
? do_raw_spin_unlock+0x4f/0x220
? kunit_try_run_case_cleanup+0xe0/0xe0 [kunit]
? kunit_mem_assert_format+0x460/0x460 [kunit]
kunit_generic_run_threadfn_adapter+0x7b/0xe0 [kunit]
kthread+0x349/0x6c0
? kthread_is_per_cpu+0xd0/0xd0
? kthread_is_per_cpu+0xd0/0xd0
? kthread_is_per_cpu+0xd0/0xd0
ret_from_fork+0x2b/0x70
? kthread_is_per_cpu+0xd0/0xd0
ret_from_fork_asm+0x11/0x20
</TASK>
---[ end trace 0000000000000000 ]---
ok 1 Log base 10 of 0
ok 2 Log base 10 of 1
ok 3 Log base 10 of 6
ok 4 Log base 10 of 10
ok 5 Log base 10 of 100
ok 6 Log base 10 of 1000
ok 7 Log base 10 of 10000
ok 8 Log base 10 of MAX
# intlog10_test: pass:8 fail:0 skip:0 total:8
ok 2 intlog10_test
# math-int_log: pass:2 fail:0 skip:0 total:2
# Totals: pass:17 fail:0 skip:0 total:17
ok 1 math-int_log
Regards,
Erhard
On Tue, 8 Apr 2025 20:02:08 +0200
Erhard Furtner <erhard_f@...lbox.org> wrote:
> Greetings!
>
> I gave v6.15-rc1 a test ride on my Ryzen 5950 system with some debugging options turned on.
>
> At running int_log_kunit I noticed the following WARNING in dmesg:
>
> [...]
> KTAP version 1
> 1..1
> KTAP version 1
> # Subtest: math-int_log
> # module: int_log_kunit
> 1..2
> KTAP version 1
> # Subtest: intlog2_test
> ------------[ cut here ]------------
> WARNING: CPU: 27 PID: 7051 at lib/math/int_log.c:63 intlog2+0xaa/0xe0
> Modules linked in: int_log_kunit uinput rfcomm btusb btrtl btmtk btbcm btintel fortify_kunit kunit snd_hrtimer snd_seq snd_seq_device fuse zram cfg80211 af_packet ccm algif_aead crypto_null des3_ede_x86_64 cbc des_generic libdes cmac md5 bnep bluetooth rfkill nls_iso8859_15 nls_cp437 vfat fat dm_crypt nhpoly1305_avx2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algif_skcipher pkcs8_key_parser nct6775 hwmon_vid nct6775_core snd_hda_codec_realtek snd_hda_codec_generic uas usb_storage snd_hda_scodec_component snd_hda_codec_hdmi amd_atl radeon amd64_edac snd_hda_intel edac_mce_amd snd_intel_dspcfg snd_hda_codec drm_suballoc_helper snd_hwdep drm_ttm_helper ttm snd_hda_core i2c_algo_bit video snd_pcm kvm_amd backlight drm_exec snd_timer drm_display_helper snd k10temp hwmon soundcore wmi_bmof gpio_amdpt wmi gpio_generic button input_leds joydev led_class evdev hid_generic usbhid hid efivarfs sha512_ssse3 sha256_ssse3 sha1_ssse3 sha1_generic aesni_intel gf128mul crypto_simd cryptd ccp
> xhci_pci xhci_hcd usbcore usb_common dm_mod
> CPU: 27 UID: 0 PID: 7051 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc1-Zen3 #6 PREEMPT
> Tainted: [B]=BAD_PAGE, [N]=TEST
> Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS L3.46 08/20/2024
> RIP: 0010:intlog2+0xaa/0xe0
> Code: 29 c5 41 0f b7 cd 0f af d9 c1 eb 0f c1 e5 18 c1 e0 08 09 e8 01 d8 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c9 31 ff e9 d2 60 1a ff cc <0f> 0b 31 c0 eb e6 44 89 f1 80 e1 07 fe c1 38 c1 7c 9b 4c 89 f7 e8
> RSP: 0018:ffffc90000e1fda8 EFLAGS: 00010246
> RAX: 1ffffffff82fb400 RBX: ffffc9000c5cf630 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: 0000000000208040 R08: 0000000000000000 R09: 0000000000000000
> R10: ffffc90000e1fe40 R11: ffffffffc09fb000 R12: dffffc0000000000
> R13: 0000000000000000 R14: ffffffffc17da1a0 R15: ffffc90000e1fe30
> FS: 0000000000000000(0000) GS:ffff888835418000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007f83bc35c000 CR3: 000000011287f000 CR4: 0000000000350ef0
> Call Trace:
> <TASK>
> intlog2_test+0x6e/0x170 [int_log_kunit]
> ? ktime_get_ts64+0x8f/0x1f0
> kunit_try_run_case+0x119/0x340 [kunit]
> ? kunit_cleanup+0x120/0x120 [kunit]
> kunit_generic_run_threadfn_adapter+0x73/0x100 [kunit]
> kthread+0x46a/0x570
> ? kunit_try_catch_run+0x620/0x620 [kunit]
> ? kthread_blkcg+0xb0/0xb0
> ret_from_fork+0x3c/0x70
> ? kthread_blkcg+0xb0/0xb0
> ret_from_fork_asm+0x11/0x20
> </TASK>
> ---[ end trace 0000000000000000 ]---
> ok 1 Log base 2 of 0
> ok 2 Log base 2 of 1
> ok 3 Log base 2 of 2
> ok 4 Log base 2 of 3
> ok 5 Log base 2 of 4
> ok 6 Log base 2 of 8
> ok 7 Log base 2 of 16
> ok 8 Log base 2 of 32
> ok 9 Log base 2 of MAX
> # intlog2_test: pass:9 fail:0 skip:0 total:9
> ok 1 intlog2_test
> KTAP version 1
> # Subtest: intlog10_test
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 7069 at lib/math/int_log.c:120 intlog10+0x1e/0x30
> Modules linked in: int_log_kunit uinput rfcomm btusb btrtl btmtk btbcm btintel fortify_kunit kunit snd_hrtimer snd_seq snd_seq_device fuse zram cfg80211 af_packet ccm algif_aead crypto_null des3_ede_x86_64 cbc des_generic libdes cmac md5 bnep bluetooth rfkill nls_iso8859_15 nls_cp437 vfat fat dm_crypt nhpoly1305_avx2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algif_skcipher pkcs8_key_parser nct6775 hwmon_vid nct6775_core snd_hda_codec_realtek snd_hda_codec_generic uas usb_storage snd_hda_scodec_component snd_hda_codec_hdmi amd_atl radeon amd64_edac snd_hda_intel edac_mce_amd snd_intel_dspcfg snd_hda_codec drm_suballoc_helper snd_hwdep drm_ttm_helper ttm snd_hda_core i2c_algo_bit video snd_pcm kvm_amd backlight drm_exec snd_timer drm_display_helper snd k10temp hwmon soundcore wmi_bmof gpio_amdpt wmi gpio_generic button input_leds joydev led_class evdev hid_generic usbhid hid efivarfs sha512_ssse3 sha256_ssse3 sha1_ssse3 sha1_generic aesni_intel gf128mul crypto_simd cryptd ccp
> xhci_pci xhci_hcd usbcore usb_common dm_mod
> CPU: 1 UID: 0 PID: 7069 Comm: kunit_try_catch Tainted: G B W N 6.15.0-rc1-Zen3 #6 PREEMPT
> Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
> Hardware name: To Be Filled By O.E.M. B550M Pro4/B550M Pro4, BIOS L3.46 08/20/2024
> RIP: 0010:intlog10+0x1e/0x30
> Code: f7 e8 96 89 92 ff eb 9f 0f 1f 40 00 85 ff 74 1a e8 17 ff ff ff 89 c0 48 69 c0 a1 26 88 26 48 c1 e8 1f 31 ff e9 7e 60 1a ff cc <0f> 0b 31 c0 eb f2 cc cc cc cc cc cc cc cc cc cc cc cc 85 f6 74 2a
> RSP: 0018:ffffc90001c67dd8 EFLAGS: 00010246
> RAX: 1ffffffff82fb400 RBX: ffffc9000c5cf630 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: 0000000000208040 R08: 0000000000000000 R09: 0000000000000000
> R10: ffffc90001c67e40 R11: ffffffffc09fb1b0 R12: dffffc0000000000
> R13: 0000000000000000 R14: ffffffffc17da480 R15: ffffc90001c67e30
> FS: 0000000000000000(0000) GS:ffff888834718000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00003c7cb8987000 CR3: 0000000164e07000 CR4: 0000000000350ef0
> Call Trace:
> <TASK>
> intlog10_test+0x6e/0x170 [int_log_kunit]
> ? ktime_get_ts64+0x8f/0x1f0
> kunit_try_run_case+0x119/0x340 [kunit]
> ? kunit_cleanup+0x120/0x120 [kunit]
> kunit_generic_run_threadfn_adapter+0x73/0x100 [kunit]
> kthread+0x46a/0x570
> ? kunit_try_catch_run+0x620/0x620 [kunit]
> ? kthread_blkcg+0xb0/0xb0
> ret_from_fork+0x3c/0x70
> ? kthread_blkcg+0xb0/0xb0
> ret_from_fork_asm+0x11/0x20
> </TASK>
> ---[ end trace 0000000000000000 ]---
> ok 1 Log base 10 of 0
> ok 2 Log base 10 of 1
> ok 3 Log base 10 of 6
> ok 4 Log base 10 of 10
> ok 5 Log base 10 of 100
> ok 6 Log base 10 of 1000
> ok 7 Log base 10 of 10000
> ok 8 Log base 10 of MAX
> # intlog10_test: pass:8 fail:0 skip:0 total:8
> ok 2 intlog10_test
> # math-int_log: pass:2 fail:0 skip:0 total:2
> # Totals: pass:17 fail:0 skip:0 total:17
> ok 1 math-int_log
>
>
> The test itself however seems to pass. Kernel .config attached.
Powered by blists - more mailing lists