medium 5.5

CVE-2024-36004 json

i40e: Do not use WQ_MEM_RECLAIM flag for workqueue

published 2024-05-20 2 y ago modified 2026-10-15 25 d ago also EUVD-2024-35814

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

Issue reported by customer during SRIOV testing, call trace: When both i40e and the i40iw driver are loaded, a warning in check_flush_dependency is being triggered. This seems to be because of the i40e driver workqueue is allocated with the WQ_MEM_RECLAIM flag, and the i40iw one is not.

Similar error was encountered on ice too and it was fixed by removing the flag. Do the same for i40e too.

[Feb 9 09:08] ------------[ cut here ]------------ [ +0.000004] workqueue: WQ_MEM_RECLAIM i40e:i40e_service_task [i40e] is flushing !WQ_MEM_RECLAIM infiniband:0x0 [ +0.000060] WARNING: CPU: 0 PID: 937 at kernel/workqueue.c:2966 check_flush_dependency+0x10b/0x120 [ +0.000007] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_timer snd_seq_device snd soundcore nls_utf8 cifs cifs_arc4 nls_ucs2_utils rdma_cm iw_cm ib_cm cifs_md4 dns_resolver netfs qrtr rfkill sunrpc vfat fat intel_rapl_msr intel_rapl_common irdma intel_uncore_frequency intel_uncore_frequency_common ice ipmi_ssif isst_if_common skx_edac nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp gnss coretemp ib_uverbs rapl intel_cstate ib_core iTCO_wdt iTCO_vendor_support acpi_ipmi mei_me ipmi_si intel_uncore ioatdma i2c_i801 joydev pcspkr mei ipmi_devintf lpc_ich intel_pch_thermal i2c_smbus ipmi_msghandler acpi_power_meter acpi_pad xfs libcrc32c ast sd_mod drm_shmem_helper t10_pi drm_kms_helper sg ixgbe drm i40e ahci crct10dif_pclmul libahci crc32_pclmul igb crc32c_intel libata ghash_clmulni_intel i2c_algo_bit mdio dca wmi dm_mirror dm_region_hash dm_log dm_mod fuse [ +0.000050] CPU: 0 PID: 937 Comm: kworker/0:3 Kdump: loaded Not tainted 6.8.0-rc2-Feb-net_dev-Qiueue-00279-gbd43c5687e05 #1 [ +0.000003] Hardware name: Intel Corporation S2600BPB/S2600BPB, BIOS SE5C620.86B.02.01.0013.121520200651 12/15/2020 [ +0.000001] Workqueue: i40e i40e_service_task [i40e] [ +0.000024] RIP: 0010:check_flush_dependency+0x10b/0x120 [ +0.000003] Code: ff 49 8b 54 24 18 48 8d 8b b0 00 00 00 49 89 e8 48 81 c6 b0 00 00 00 48 c7 c7 b0 97 fa 9f c6 05 8a cc 1f 02 01 e8 35 b3 fd ff <0f> 0b e9 10 ff ff ff 80 3d 78 cc 1f 02 00 75 94 e9 46 ff ff ff 90 [ +0.000002] RSP: 0018:ffffbd294976bcf8 EFLAGS: 00010282 [ +0.000002] RAX: 0000000000000000 RBX: ffff94d4c483c000 RCX: 0000000000000027 [ +0.000001] RDX: ffff94d47f620bc8 RSI: 0000000000000001 RDI: ffff94d47f620bc0 [ +0.000001] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffff7fff [ +0.000001] R10: ffffbd294976bb98 R11: ffffffffa0be65e8 R12: ffff94c5451ea180 [ +0.000001] R13: ffff94c5ab5e8000 R14: ffff94c5c20b6e05 R15: ffff94c5f1330ab0 [ +0.000001] FS: 0000000000000000(0000) GS:ffff94d47f600000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000001] CR2: 00007f9e6f1fca70 CR3: 0000000038e20004 CR4: 00000000007706f0 [ +0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ +0.000001] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ +0.000001] PKRU: 55555554 [ +0.000001] Call Trace: [ +0.000001] <TASK> [ +0.000002] ? __warn+0x80/0x130 [ +0.000003] ? check_flush_dependency+0x10b/0x120 [ +0.000002] ? report_bug+0x195/0x1a0 [ +0.000005] ? handle_bug+0x3c/0x70 [ +0.000003] ? exc_invalid_op+0x14/0x70 [ +0.000002] ? asm_exc_invalid_op+0x16/0x20 [ +0.000006] ? check_flush_dependency+0x10b/0x120 [ +0.000002] ? check_flush_dependency+0x10b/0x120 [ +0.000002] __flush_workqueue+0x126/0x3f0 [ +0.000015] ib_cache_cleanup_one+0x1c/0xe0 [ib_core] [ +0.000056] __ib_unregister_device+0x6a/0xb0 [ib_core] [ +0.000023] ib_unregister_device_and_put+0x34/0x50 [ib_core] [ +0.000020] i40iw_close+0x4b/0x90 [irdma] [ +0.000022] i40e_notify_client_of_netdev_close+0x54/0xc0 [i40e] [ +0.000035] i40e_service_task+0x126/0x190 [i40e] [ +0.000024] process_one_work+0x174/0x340 [ +0.000003] worker_th ---truncated---

Patch / fix

fixed in 2 distros 6 links 8

Linux Linux 4.19.313, 5.4.275, 5.10.216, 5.15.158, 6.1.90, 6.6.30, 6.8.9, 6.9
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1

debian ubuntu red hat suse almalinux rocky linux

linux Debian 12 6.1.90-1
linux Debian 14, Debian 13 6.8.9-1

debian advisories DEBIAN-CVE-2024-36004

linux Ubuntu 20.04 LTS 5.4.0-189.209
linux Ubuntu 22.04 LTS 5.15.0-116.126
linux Ubuntu 24.04 LTS 6.8.0-40.40
linux-aws Ubuntu 20.04 LTS 5.4.0-1128.138
linux-aws Ubuntu 22.04 LTS 5.15.0-1065.71
linux-aws Ubuntu 24.04 LTS 6.8.0-1013.14
linux-gcp Ubuntu 20.04 LTS 5.4.0-1132.141
linux-gcp Ubuntu 22.04 LTS 5.15.0-1064.72

ubuntu advisories UBUNTU-CVE-2024-36004

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 8 4.18.0-553.8.1.el8_10
perf RHEL 8 4.18.0-553.8.1.el8_10
bpftool RHEL 8 4.18.0-553.8.1.el8_10
kernel-core RHEL 8 4.18.0-553.8.1.el8_10
kernel-tools RHEL 8 4.18.0-553.8.1.el8_10
python3-perf RHEL 8 4.18.0-553.8.1.el8_10
kernel-modules RHEL 8 4.18.0-553.8.1.el8_10
kernel-zfcpdump RHEL 8 4.18.0-553.8.1.el8_10

red hat advisories RHSA-2025:4342 RHSA-2024:4211 RHSA-2024:4352

kernel-rt Linux Micro 6.0 6.4.0-9.1
kernel-source-rt Linux Micro 6.0 6.4.0-9.1
kernel-source Linux Micro 6.0 6.4.0-18.1
kernel-default Linux Micro 6.0 6.4.0-18.1
kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1
kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.5.1

suse advisories SUSE-SU-2025:20028-1 SUSE-SU-2025:20008-1 SUSE-SU-2024:2973-1 SUSE-SU-2024:2947-1 SUSE-SU-2024:2940-1 SUSE-SU-2024:2939-1

kernel-rt AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-kvm AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-core AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-modules AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-kvm AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-core AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-debug-modules AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel-rt-modules-extra AlmaLinux 8 4.18.0-553.8.1.rt7.349.el8_10

almalinux advisories ALSA-2024:4352 ALSA-2024:4211

kernel-rt Rocky Linux 8 4.18.0-553.8.1.rt7.349.el8_10
kernel Rocky Linux 8 4.18.0-553.8.1.el8_10

rocky linux advisories RLSA-2024:4352 RLSA-2024:4211

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-36004 updated 2026-11-06 cvss 5.5

kernel: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue

Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +82 more
affected: no fix available
Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.66.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.66.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.66.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.66.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.66.1.el9_4 Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.66.1.el9_4, perf 5.14.0-427.66.1.el9_4, rtla 5.14.0-427.66.1.el9_4, kernel-devel-matched 5.14.0-427.66.1.el9_4, kernel-64k-devel-matched 5.14.0-427.66.1.el9_4, kernel-debug-devel-matched 5.14.0-427.66.1.el9_4, +6 more
fixed: vendor fix RHSA-2025:4342
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.8.1.el8_10, kernel 4.18.0-553.8.1.el8_10, bpftool 4.18.0-553.8.1.el8_10, kernel-core 4.18.0-553.8.1.el8_10, kernel-tools 4.18.0-553.8.1.el8_10, python3-perf 4.18.0-553.8.1.el8_10, +15 more
fixed: vendor fix RHSA-2024:4211
Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.66.1.el9_4, kernel 5.14.0-427.66.1.el9_4, kernel-64k 5.14.0-427.66.1.el9_4, kernel-core 5.14.0-427.66.1.el9_4, kernel-tools 5.14.0-427.66.1.el9_4, python3-perf 5.14.0-427.66.1.el9_4, +28 more
fixed: vendor fix RHSA-2025:4342
Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.8.1.el8_10
fixed: vendor fix RHSA-2024:4211
Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, +4 more
fixed: vendor fix RHSA-2024:4352
Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.66.1.el9_4, kernel-rt-core 5.14.0-427.66.1.el9_4, kernel-rt-modules 5.14.0-427.66.1.el9_4, kernel-rt-debug-core 5.14.0-427.66.1.el9_4, kernel-rt-modules-core 5.14.0-427.66.1.el9_4, kernel-rt-debug-modules 5.14.0-427.66.1.el9_4, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.66.1.el9_4, kernel-rt-kvm 5.14.0-427.66.1.el9_4, kernel-rt-core 5.14.0-427.66.1.el9_4, kernel-rt-modules 5.14.0-427.66.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.66.1.el9_4, kernel-rt-debug-core 5.14.0-427.66.1.el9_4, +6 more
fixed: vendor fix RHSA-2025:4342

show 2 more

Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules-extra 4.18.0-553.8.1.rt7.349.el8_10, +2 more
fixed: vendor fix RHSA-2024:4352
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux BaseOS (v. 8) kernel-headers 4.18.0-553.8.1.el8_10, kernel-cross-headers 4.18.0-553.8.1.el8_10
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-102-01 updated 2026-05-14 cvss 5.5

Siemens SIMATIC S7-1500 TM MFP

Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-05-20)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /stable/c/09b54d29f05129b092f7c793a70b689ffb3c7b2c
patch
git.kernel.org /stable/c/546d0fe9d76e8229a67369f9cb61e961d99038bd
patch
git.kernel.org /stable/c/fbbb2404340dd6178e281bd427c271f7d5ec1d22
patch
git.kernel.org /stable/c/ff7431f898dd00892a545b7d0ce7adf5b926944f
patch
git.kernel.org /stable/c/152ed360cf2d273f88fc99a518b7eb868aae2939
patch
git.kernel.org /stable/c/8d6105f637883c8c09825e962308c06e977de4f0
patch
git.kernel.org /stable/c/1594dac8b1ed78f9e75c263327e198a2e5e25b0e
patch
git.kernel.org /stable/c/2cc7d150550cc981aceedf008f5459193282425c
patch
lists.debian.org /debian-lts-announce/2024/06/msg00017.html
mailing-list, third-party-advisory
lists.debian.org /debian-lts-announce/2024/06/msg00020.html
mailing-list, third-party-advisory
cert-portal.siemens.com /productcert/html/ssa-265688.html

Sources

CVE List CVE-2024-36004
NVD CVE-2024-36004

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary