* [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail
@ 2026-03-09 6:42 kernel test robot
2026-03-09 7:40 ` Eric Dumazet
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2026-03-09 6:42 UTC (permalink / raw)
To: Eric Dumazet
Cc: oe-lkp, lkp, Jakub Kicinski, Kuniyuki Iwashima, netdev, ltp,
oliver.sang
Hello,
kernel test robot noticed "ltp.cve-2020-25705.fail" on:
commit: 64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac ("icmp: increase net.ipv4.icmp_msgs_{per_sec,burst}")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
[test failed on linux-next/master a0ae2a256046c0c5d3778d1a194ff2e171f16e5f]
in testcase: ltp
version:
with following parameters:
test: cve-06/cve-2020-25705
config: x86_64-rhel-9.4-ltp
compiler: gcc-14
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4790T CPU @ 2.70GHz (Haswell) with 16G memory
(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/202603091409.866c520c-lkp@intel.com
PATH=/lkp/benchmarks/ltp:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/lkp/lkp/src/bin
2026-03-06 06:12:16 cd /lkp/benchmarks/ltp
2026-03-06 06:12:16 export LTP_RUNTIME_MUL=2
2026-03-06 06:12:16 export LTPROOT=/lkp/benchmarks/ltp
2026-03-06 06:12:16 kirk -f temp_single_test
Host information
Hostname: lkp-hsw-d05
Python: 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0]
Directory: /tmp/kirk.root/tmpyus4a2ag
Connecting to SUT: default
Suite: temp_single_test
───────────────────────
^[[1;37mcve-2020-25705: ^[[0m^[[1;31mfail^[[0m | ^[[1;33mtainted^[[0m (16.104s)
Execution time: 16.158s
Disconnecting from SUT: default
Target information
──────────────────
Kernel: Linux 6.19.0-11801-g64db5933c7ad #1 SMP PREEMPT_DYNAMIC Fri Mar 6 13:49:07 CST 2026
Cmdline: ip=::::lkp-hsw-d05::dhcp
root=/dev/ram0
RESULT_ROOT=/result/ltp/cve-06_cve-2020-25705/lkp-hsw-d05/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-ltp/gcc-14/64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac/0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-9.4-ltp/gcc-14/64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac/vmlinuz-6.19.0-11801-g64db5933c7ad
branch=linux-devel/devel-hourly-20260302-003818
job=/lkp/jobs/scheduled/lkp-hsw-d05/ltp-cve-06_cve-2020-25705-debian-13-x86_64-20250902.cgz-64db5933c7ad-20260306-21371-13x9t7k-1.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-9.4-ltp
commit=64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac
intremap=posted_msi
max_uptime=14400
LKP_SERVER=internal-lkp-server
nokaslr
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw
keep_initrds=/osimage/pkg/debian-13-x86_64-20250902.cgz/ltp-x86_64-92ea0639e-1_20260301.cgz
Machine: unknown
Arch: x86_64
RAM: 14040916 kB
Swap: 0 kB
Distro: debian 13
────────────────────────
TEST SUMMARY
────────────────────────
Suite: temp_single_test
Runtime: 16.104s
Runs: 1
Results:
Passed: 0
Failed: 1
Broken: 0
Skipped: 0
Warnings: 0
^[[1;31mFailures:^[[0m
• cve-2020-25705
Session stopped
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260309/202603091409.866c520c-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail
2026-03-09 6:42 [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail kernel test robot
@ 2026-03-09 7:40 ` Eric Dumazet
2026-03-11 10:33 ` [LTP] " Cyril Hrubis
0 siblings, 1 reply; 4+ messages in thread
From: Eric Dumazet @ 2026-03-09 7:40 UTC (permalink / raw)
To: kernel test robot
Cc: oe-lkp, lkp, Jakub Kicinski, Kuniyuki Iwashima, netdev, ltp
On Mon, Mar 9, 2026 at 7:42 AM kernel test robot <oliver.sang@intel.com> wrote:
>
>
>
> Hello,
>
> kernel test robot noticed "ltp.cve-2020-25705.fail" on:
>
> commit: 64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac ("icmp: increase net.ipv4.icmp_msgs_{per_sec,burst}")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>
> [test failed on linux-next/master a0ae2a256046c0c5d3778d1a194ff2e171f16e5f]
>
> in testcase: ltp
> version:
> with following parameters:
>
> test: cve-06/cve-2020-25705
>
>
>
> config: x86_64-rhel-9.4-ltp
> compiler: gcc-14
> test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4790T CPU @ 2.70GHz (Haswell) with 16G memory
>
> (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/202603091409.866c520c-lkp@intel.com
>
>
> PATH=/lkp/benchmarks/ltp:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/lkp/lkp/src/bin
> 2026-03-06 06:12:16 cd /lkp/benchmarks/ltp
> 2026-03-06 06:12:16 export LTP_RUNTIME_MUL=2
> 2026-03-06 06:12:16 export LTPROOT=/lkp/benchmarks/ltp
> 2026-03-06 06:12:16 kirk -f temp_single_test
> Host information
> Hostname: lkp-hsw-d05
> Python: 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0]
> Directory: /tmp/kirk.root/tmpyus4a2ag
>
> Connecting to SUT: default
>
> Suite: temp_single_test
> ───────────────────────
> [1;37mcve-2020-25705: [0m [1;31mfail [0m | [1;33mtainted [0m (16.104s)
>
> Execution time: 16.158s
>
> Disconnecting from SUT: default
>
> Target information
> ──────────────────
> Kernel: Linux 6.19.0-11801-g64db5933c7ad #1 SMP PREEMPT_DYNAMIC Fri Mar 6 13:49:07 CST 2026
> Cmdline: ip=::::lkp-hsw-d05::dhcp
> root=/dev/ram0
> RESULT_ROOT=/result/ltp/cve-06_cve-2020-25705/lkp-hsw-d05/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-ltp/gcc-14/64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac/0
> BOOT_IMAGE=/pkg/linux/x86_64-rhel-9.4-ltp/gcc-14/64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac/vmlinuz-6.19.0-11801-g64db5933c7ad
> branch=linux-devel/devel-hourly-20260302-003818
> job=/lkp/jobs/scheduled/lkp-hsw-d05/ltp-cve-06_cve-2020-25705-debian-13-x86_64-20250902.cgz-64db5933c7ad-20260306-21371-13x9t7k-1.yaml
> user=lkp
> ARCH=x86_64
> kconfig=x86_64-rhel-9.4-ltp
> commit=64db5933c7adcdc4dd8f5ef6506cc998ecbe63ac
> intremap=posted_msi
> max_uptime=14400
> LKP_SERVER=internal-lkp-server
> nokaslr
> selinux=0
> debug
> apic=debug
> sysrq_always_enabled
> rcupdate.rcu_cpu_stall_timeout=100
> net.ifnames=0
> printk.devkmsg=on
> panic=-1
> softlockup_panic=1
> nmi_watchdog=panic
> oops=panic
> load_ramdisk=2
> prompt_ramdisk=0
> drbd.minor_count=8
> systemd.log_level=err
> ignore_loglevel
> console=tty0
> earlyprintk=ttyS0,115200
> console=ttyS0,115200
> vga=normal
> rw
> keep_initrds=/osimage/pkg/debian-13-x86_64-20250902.cgz/ltp-x86_64-92ea0639e-1_20260301.cgz
> Machine: unknown
> Arch: x86_64
> RAM: 14040916 kB
> Swap: 0 kB
> Distro: debian 13
>
> ────────────────────────
> TEST SUMMARY
> ────────────────────────
> Suite: temp_single_test
> Runtime: 16.104s
> Runs: 1
>
> Results:
> Passed: 0
> Failed: 1
> Broken: 0
> Skipped: 0
> Warnings: 0
>
> [1;31mFailures: [0m
> • cve-2020-25705
>
> Session stopped
>
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20260309/202603091409.866c520c-lkp@intel.com
>
>
I do not want to know what this test is doing or expecting.
If it expects sysctls to have a precise value, it should set them ?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [LTP] [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail
2026-03-09 7:40 ` Eric Dumazet
@ 2026-03-11 10:33 ` Cyril Hrubis
2026-03-11 10:45 ` Eric Dumazet
0 siblings, 1 reply; 4+ messages in thread
From: Cyril Hrubis @ 2026-03-11 10:33 UTC (permalink / raw)
To: Eric Dumazet
Cc: kernel test robot, Kuniyuki Iwashima, lkp, netdev, oe-lkp,
Jakub Kicinski, ltp
Hi!
> I do not want to know what this test is doing or expecting.
>
> If it expects sysctls to have a precise value, it should set them ?
The test is a CVE reproducer that checks if ICMP message ratelimiting is
sufficiently randomized so that we do not leak information about the
system.
See the test source code:
https://github.com/linux-test-project/ltp/blob/master/testcases/cve/icmp_rate_limit01.c
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [LTP] [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail
2026-03-11 10:33 ` [LTP] " Cyril Hrubis
@ 2026-03-11 10:45 ` Eric Dumazet
0 siblings, 0 replies; 4+ messages in thread
From: Eric Dumazet @ 2026-03-11 10:45 UTC (permalink / raw)
To: Cyril Hrubis
Cc: kernel test robot, Kuniyuki Iwashima, lkp, netdev, oe-lkp,
Jakub Kicinski, ltp
On Wed, Mar 11, 2026 at 11:33 AM Cyril Hrubis <chrubis@suse.cz> wrote:
>
> Hi!
> > I do not want to know what this test is doing or expecting.
> >
> > If it expects sysctls to have a precise value, it should set them ?
>
> The test is a CVE reproducer that checks if ICMP message ratelimiting is
> sufficiently randomized so that we do not leak information about the
> system.
>
> See the test source code:
>
> https://github.com/linux-test-project/ltp/blob/master/testcases/cve/icmp_rate_limit01.c
>
This test needs to be tweaked/changed.
It has been written with wrong assumption.
(icmp_msgs_burst == 50)
Thanks.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-03-11 10:45 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-03-09 6:42 [linux-next:master] [icmp] 64db5933c7: ltp.cve-2020-25705.fail kernel test robot
2026-03-09 7:40 ` Eric Dumazet
2026-03-11 10:33 ` [LTP] " Cyril Hrubis
2026-03-11 10:45 ` Eric Dumazet
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox