Description
In the Linux kernel, the following vulnerability has been resolved:
scsi: fnic: Move flush_work initialization out of if block
After commit 379a58caa199 ("scsi: fnic: Move fnic_fnic_flush_tx() to a
work queue"), it can happen that a work item is sent to an uninitialized
work queue. This may has the effect that the item being queued is never
actually queued, and any further actions depending on it will not
proceed.
The following warning is observed while the fnic driver is loaded:
kernel: WARNING: CPU: 11 PID: 0 at ../kernel/workqueue.c:1524 __queue_work+0x373/0x410
kernel: <IRQ>
kernel: queue_work_on+0x3a/0x50
kernel: fnic_wq_copy_cmpl_handler+0x54a/0x730 [fnic 62fbff0c42e7fb825c60a55cde2fb91facb2ed24]
kernel: fnic_isr_msix_wq_copy+0x2d/0x60 [fnic 62fbff0c42e7fb825c60a55cde2fb91facb2ed24]
kernel: __handle_irq_event_percpu+0x36/0x1a0
kernel: handle_irq_event_percpu+0x30/0x70
kernel: handle_irq_event+0x34/0x60
kernel: handle_edge_irq+0x7e/0x1a0
kernel: __common_interrupt+0x3b/0xb0
kernel: common_interrupt+0x58/0xa0
kernel: </IRQ>
It has been observed that this may break the rediscovery of Fibre
Channel devices after a temporary fabric failure.
This patch fixes it by moving the work queue initialization out of
an if block in fnic_probe().
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.8 | 6.11.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 6.11.4-1 | — |
| Debian 13 | linux | 6.11.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux | 6.8.0-56.58 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1025.27 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1025.30 | USN-7384-1 |
| Ubuntu 24.04 LTS | linux-azure-6.11 | 6.11.0-1012.12~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1014.15 | USN-7468-1 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1026.28 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-gcp-6.11 | 6.11.0-1011.11~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1021.25 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1008.10 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1022.22 | USN-7385-1 |
| Ubuntu 24.04 LTS | linux-nvidia | 6.8.0-1024.27 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-nvidia-6.11 | 6.11.0-1007.7 | — |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1024.27.1 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1004.4 | — |
| Ubuntu 24.04 LTS | linux-oem-6.11 | 6.11.0-1015.15 | USN-7310-1 |
| Ubuntu 24.04 LTS | linux-oem-6.8 | 6.8.0-1024.24 | USN-7386-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1022.23 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1028.32 | USN-7524-1 |
| Ubuntu 24.04 LTS | linux-realtime +1 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-riscv +1 | 6.8.0-56.58.1 | USN-7383-1 |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1017.18 | — |
| Ubuntu 22.04 LTS | linux-aws-6.8 | 6.8.0-1027.29~22.04.1 | USN-7451-1 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1025.30~22.04.1 | USN-7384-2 |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1026.28~22.04.1 | USN-7383-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 | 6.8.0-57.59~22.04.1 | USN-7403-1 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1023.23~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-nvidia-6.8 | 6.8.0-1024.27~22.04.1 | USN-7383-1 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1022.23~22.04.1 | USN-7383-1 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv-6.8 +1 | 6.8.0-56.58.1~22.04.1 | USN-7383-1 |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +13 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2023.24 | USN-7523-1 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1018.19 | USN-7383-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1018.19~22.04.1 | — |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-78.78+fips1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.30.1 | SUSE-SU-2024:4318-1 |
| SLES 15 SP6 | kernel-azure | 6.4.0-150600.8.17.2 | SUSE-SU-2024:3984-1 |
| SLES 15 SP6 | kernel-coco +3 | 6.4.0-15061.9.coco15sp6.1 | SUSE-SU-2024:4387-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.30.1.150600.12.12.6 | SUSE-SU-2024:4318-1 |
| SLES 15 SP6 | kernel-syms-azure +1 | 6.4.0-150600.8.17.1 | SUSE-SU-2024:3984-1 |
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.88.1 | SUSE-SU-2024:4364-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.75.1 | SUSE-SU-2024:4376-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.88.1.150500.6.39.4 | SUSE-SU-2024:4364-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | kernel-default-base | 6.4.0-24.1.21.4 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0-RT_Update_4 | 1-1.1 | SUSE-SU-2025:20246-1 |
| SLE Micro 6.1 | kernel-livepatch-MICRO-6-0_Update_4 | 1-1.2 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-22.1 | SUSE-SU-2025:20246-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-24.1 | SUSE-SU-2025:20247-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-24.1.21.4 | SUSE-SU-2025:20164-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0-RT_Update_4 | 1-1.1 | SUSE-SU-2025:20163-1 |
| SLE Micro 6.0 | kernel-livepatch-MICRO-6-0_Update_4 | 1-1.2 | SUSE-SU-2025:20164-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-22.1 | SUSE-SU-2025:20163-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-24.1 | SUSE-SU-2025:20164-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.88.1 | SUSE-SU-2024:4364-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.88.1.150500.6.39.4 | SUSE-SU-2024:4364-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.79.1 | SUSE-SU-2024:4315-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.30.1 | SUSE-SU-2024:4318-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_5 | 1-150600.1.3.1 | SUSE-SU-2024:3986-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_6 | 1-150600.13.3.5 | SUSE-SU-2024:4318-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.88.1 | SUSE-SU-2024:4364-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_23 | 1-150500.11.3.1 | SUSE-SU-2024:4315-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_21 | 1-150500.11.5.1 | SUSE-SU-2024:4364-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.17.1 | SUSE-SU-2024:3986-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.79.1 | SUSE-SU-2024:4315-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 6.11.8-1.1 | openSUSE-SU-2024:14500-1 |
| openSUSE Tumbleweed | kernel-source-longterm | 6.12.11-1.1 | openSUSE-SU-2025:14705-1 |
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.30.1 | SUSE-SU-2024:4318-1 |
| openSUSE Leap 15.6 | kernel-azure | 6.4.0-150600.8.17.2 | SUSE-SU-2024:3984-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.30.1.150600.12.12.6 | SUSE-SU-2024:4318-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.17.1 | SUSE-SU-2024:3986-1 |
| openSUSE Leap 15.6 | kernel-syms-azure +1 | 6.4.0-150600.8.17.1 | SUSE-SU-2024:3984-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.75.1 | SUSE-SU-2024:4376-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.79.1 | SUSE-SU-2024:4315-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.79.1 | SUSE-SU-2024:4315-1 |
Advisories 26
- WID-SEC-2024-3251 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Nov 11, 2026
- USN-7468-1 linux-azure-nvidia vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7451-1 linux-aws-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7524-1 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7523-1 linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7310-1 linux-oem-6.11 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7384-2 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7384-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Oct 30, 2026
- USN-7383-1 linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7386-1 linux-oem-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7383-2 linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7403-1 linux-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- USN-7385-1 linux-ibm vulnerabilities Ubuntu Security Notices (USN) · Oct 29, 2026
- SUSE-SU-2025:20163-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20246-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20164-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20247-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2024:4376-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4318-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3984-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3986-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4364-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14705-1 kernel-devel-longterm-6.12.11-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14500-1 kernel-devel-6.11.8-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4315-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4387-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026