Description
In the Linux kernel, the following vulnerability has been resolved:
idpf: convert control queue mutex to a spinlock
With VIRTCHNL2_CAP_MACFILTER enabled, the following warning is generated
on module load:
[ 324.701677] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:578
[ 324.701684] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1582, name: NetworkManager
[ 324.701689] preempt_count: 201, expected: 0
[ 324.701693] RCU nest depth: 0, expected: 0
[ 324.701697] 2 locks held by NetworkManager/1582:
[ 324.701702] #0: ffffffff9f7be770 (rtnl_mutex){....}-{3:3}, at: rtnl_newlink+0x791/0x21e0
[ 324.701730] #1: ff1100216c380368 (_xmit_ETHER){....}-{2:2}, at: __dev_open+0x3f0/0x870
[ 324.701749] Preemption disabled at:
[ 324.701752] [<ffffffff9cd23b9d>] __dev_open+0x3dd/0x870
[ 324.701765] CPU: 30 UID: 0 PID: 1582 Comm: NetworkManager Not tainted 6.15.0-rc5+ #2 PREEMPT(voluntary)
[ 324.701771] Hardware name: Intel Corporation M50FCP2SBSTD/M50FCP2SBSTD, BIOS SE5C741.86B.01.01.0001.2211140926 11/14/2022
[ 324.701774] Call Trace:
[ 324.701777] <TASK>
[ 324.701779] dump_stack_lvl+0x5d/0x80
[ 324.701788] ? __dev_open+0x3dd/0x870
[ 324.701793] __might_resched.cold+0x1ef/0x23d
<..>
[ 324.701818] __mutex_lock+0x113/0x1b80
<..>
[ 324.701917] idpf_ctlq_clean_sq+0xad/0x4b0 [idpf]
[ 324.701935] ? kasan_save_track+0x14/0x30
[ 324.701941] idpf_mb_clean+0x143/0x380 [idpf]
<..>
[ 324.701991] idpf_send_mb_msg+0x111/0x720 [idpf]
[ 324.702009] idpf_vc_xn_exec+0x4cc/0x990 [idpf]
[ 324.702021] ? rcu_is_watching+0x12/0xc0
[ 324.702035] idpf_add_del_mac_filters+0x3ed/0xb50 [idpf]
<..>
[ 324.702122] __hw_addr_sync_dev+0x1cf/0x300
[ 324.702126] ? find_held_lock+0x32/0x90
[ 324.702134] idpf_set_rx_mode+0x317/0x390 [idpf]
[ 324.702152] __dev_open+0x3f8/0x870
[ 324.702159] ? __pfx___dev_open+0x10/0x10
[ 324.702174] __dev_change_flags+0x443/0x650
<..>
[ 324.702208] netif_change_flags+0x80/0x160
[ 324.702218] do_setlink.isra.0+0x16a0/0x3960
<..>
[ 324.702349] rtnl_newlink+0x12fd/0x21e0
The sequence is as follows:
rtnl_newlink()->
__dev_change_flags()->
__dev_open()->
dev_set_rx_mode() - > # disables BH and grabs "dev->addr_list_lock"
idpf_set_rx_mode() -> # proceed only if VIRTCHNL2_CAP_MACFILTER is ON
__dev_uc_sync() ->
idpf_add_mac_filter ->
idpf_add_del_mac_filters ->
idpf_send_mb_msg() ->
idpf_mb_clean() ->
idpf_ctlq_clean_sq() # mutex_lock(cq_lock)
Fix by converting cq_lock to a spinlock. All operations under the new
lock are safe except freeing the DMA memory, which may use vunmap(). Fix
by requesting a contiguous physical memory for the DMA mapping.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.7 | 6.12.37 |
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 | 6.12.37-1 | — |
| Debian 13 | linux | 6.12.37-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Nvidia-BlueField 24.04 LTS | linux-bluefield | 6.8.0-1016.20 | — |
| Ubuntu 25.10 | linux-azure-fde | No fix yet | — |
| Ubuntu 24.04 LTS | linux | 6.8.0-100.100 | USN-8028-1 |
| Ubuntu 24.04 LTS | linux-aws +1 | 6.8.0-1046.49 | USN-8028-5 |
| Ubuntu 24.04 LTS | linux-aws-6.14 +1 | 6.14.0-1015.15~24.04.1 | USN-7833-3, USN-7833-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1046.52 | USN-8074-1 |
| Ubuntu 24.04 LTS | linux-azure-6.14 | 6.14.0-1014.14~24.04.1 | USN-7834-1 |
| Ubuntu 24.04 LTS | linux-azure-fde | 6.8.0-1046.53 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia | 6.8.0-1039.42 | — |
| Ubuntu 24.04 LTS | linux-azure-nvidia-6.14 | 6.14.0-1007.7 | USN-7834-1 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1047.50 | USN-8031-3 |
| Ubuntu 24.04 LTS | linux-gcp-6.14 | 6.14.0-1018.19~24.04.1 | USN-7833-4 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1043.48 | USN-8031-3 |
| Ubuntu 24.04 LTS | linux-gkeop | 6.8.0-1030.33 | USN-8028-5 |
| Ubuntu 24.04 LTS | linux-hwe-6.14 | 6.14.0-34.34~24.04.1 | USN-7856-1 |
| Ubuntu 24.04 LTS | linux-ibm | 6.8.0-1044.44 | USN-8028-8 |
| Ubuntu 24.04 LTS | linux-intel +10 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-lowlatency | 6.8.0-100.100.1 | USN-8052-1 |
| Ubuntu 24.04 LTS | linux-nvidia-lowlatency | 6.8.0-1046.49.1 | USN-8028-7 |
| Ubuntu 24.04 LTS | linux-nvidia-tegra | 6.8.0-1020.20 | — |
| Ubuntu 24.04 LTS | linux-oem-6.14 | 6.14.0-1014.14 | USN-7833-1 |
| Ubuntu 24.04 LTS | linux-oracle | 6.8.0-1043.44 | USN-8028-5 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1047.51 | USN-8028-1 |
| Ubuntu 24.04 LTS | linux-riscv-6.14 | 6.14.0-34.34.1~24.04.1 | — |
| Ubuntu 24.04 LTS | linux-xilinx | 6.8.0-1023.24 | USN-8052-2 |
| Ubuntu 22.04 LTS | linux-aws-6.8 +1 | 6.8.0-1046.49~22.04.1 | USN-8028-5 |
| Ubuntu 22.04 LTS | linux-azure-6.8 | 6.8.0-1051.57~22.04.1 | USN-8126-1 |
| Ubuntu 22.04 LTS | linux-azure-fde-6.8 | 6.8.0-1046.53~22.04.1 | — |
| Ubuntu 22.04 LTS | linux-gcp +34 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-gcp-6.8 | 6.8.0-1047.50~22.04.2 | USN-8031-1 |
| Ubuntu 22.04 LTS | linux-hwe-6.8 +1 | 6.8.0-100.100~22.04.1 | USN-8028-6 |
| Ubuntu 22.04 LTS | linux-ibm-6.8 | 6.8.0-1044.44~22.04.1 | USN-8028-8 |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.8 | 6.8.0-100.100.1~22.04.1 | USN-8028-6 |
| Ubuntu 22.04 LTS | linux-oracle-6.8 | 6.8.0-1043.44~22.04.1 | USN-8028-5 |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2037.38 | USN-8028-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1041.42 | USN-8028-3 |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 | 6.14.0-1014.14~24.04.1 | USN-7833-2 |
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime-6.8 | 6.8.1-1041.42~22.04.1 | USN-8028-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-aws-fips | 6.8.0-1046.49+fips1 | USN-8028-4 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-azure-fips | 6.8.0-1046.52+fips1 | USN-8074-2 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-fips | 6.8.0-100.100+fips1 | USN-8028-4 |
| Ubuntu Pro FIPS-updates 24.04 LTS | linux-gcp-fips | 6.8.0-1047.50+fips1 | USN-8031-2 |
| Ubuntu Pro FIPS-updates 22.04 LTS | linux-gcp-fips | No fix yet | — |
| Ubuntu Pro 20.04 LTS | linux-gcp-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rv +77 | 6.12.0-55.33.1.el10_0 | RHSA-2025:15782 |
| RHEL 9 | rv +77 | 5.14.0-570.41.1.el9_6 | RHSA-2025:15429 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.75.1.rt7.416.el8_10 | RHSA-2025:15786 |
| RHEL 8 | perf +26 | 4.18.0-553.75.1.el8_10 | RHSA-2025:15785 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | bpftool | 7.3.0-427.94.1.el9_4 | RHSA-2025:17958 |
| RHEL 9.4 EUS | rv +64 | 5.14.0-427.94.1.el9_4 | RHSA-2025:17958 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | kernel-doc +1 | 6.12.0-55.33.1.el10_0 | ALSA-2025:15782 |
| AlmaLinux 9 | rv +75 | 5.14.0-570.41.1.el9_6 | ALSA-2025:15429 |
| AlmaLinux 8 | kernel-rt +9 | 4.18.0-553.75.1.rt7.416.el8_10 | ALSA-2025:15786 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.75.1.el8_10 | ALSA-2025:15785 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +5 | 6.4.0-150700.53.11.1 | SUSE-SU-2025:02997-1 |
| SLES 15 SP7 | kernel-azure +2 | 6.4.0-150700.20.11.1 | SUSE-SU-2025:03011-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.11.1.150700.17.9.4 | SUSE-SU-2025:02997-1 |
| SLES 15 SP7 | kernel-docs | 6.4.0-150700.53.11.3 | SUSE-SU-2025:02997-1 |
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.65.1 | SUSE-SU-2025:02996-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.48.1 | SUSE-SU-2025:02969-1 |
| SLES 15 SP6 | kernel-coco +3 | 6.4.0-15061.28.coco15sp6.1 | SUSE-SU-2025:02923-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.65.1.150600.12.28.4 | SUSE-SU-2025:02996-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | kernel-64kb +7 | 6.12.0-160000.6.1 | SUSE-SU-2025:21139-1 |
| SLES for SAP 16.0 | kernel-default-base | 6.12.0-160000.6.1.160000.2.4 | SUSE-SU-2025:21139-1 |
| SLES 16.0 | kernel-64kb +7 | 6.12.0-160000.6.1 | SUSE-SU-2025:21179-1, SUSE-SU-2025:21139-1 |
| SLES 16.0 | kernel-default-base | 6.12.0-160000.6.1.160000.2.4 | SUSE-SU-2025:21139-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.6.1.160000.2.4 | SUSE-SU-2025:21074-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.6.1 | SUSE-SU-2026:20560-1, SUSE-SU-2025:21074-1 |
| SLE Micro 6.1 | kernel-default-base | 6.4.0-32.1.21.10 | SUSE-SU-2025:20602-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-35.1 | SUSE-SU-2025:20601-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-32.1 | SUSE-SU-2025:20602-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-32.1.21.10 | SUSE-SU-2025:20586-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-35.1 | SUSE-SU-2025:20577-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-32.1 | SUSE-SU-2025:20586-1 |
| SLE Live Patching 15 SP7 | kernel-default | 6.4.0-150700.53.11.1 | SUSE-SU-2025:02997-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_3 | 1-150700.1.5.1 | SUSE-SU-2025:02853-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_3 | 1-150700.15.3.4 | SUSE-SU-2025:02997-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.65.1 | SUSE-SU-2025:02996-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_14 | 1-150600.1.5.1 | SUSE-SU-2025:03023-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_14 | 1-150600.13.3.4 | SUSE-SU-2025:02996-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt +2 | 6.4.0-150700.7.13.1 | SUSE-SU-2025:02853-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.49.1 | SUSE-SU-2025:03023-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.6.1.160000.2.4 | openSUSE-SU-2025:20081-1 |
| openSUSE Leap 16.0 | kernel-rt +10 | 6.12.0-160000.6.1 | openSUSE-SU-2025:20081-1 |
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.65.1 | SUSE-SU-2025:02996-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.48.1 | SUSE-SU-2025:02969-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.65.1.150600.12.28.4 | SUSE-SU-2025:02996-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.49.1 | SUSE-SU-2025:03023-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | rv +28 | 6.12.0-55.33.1.0.1.el10_0 | ELSA-2025-15782 |
| Oracle Linux 9 | kernel-uek +34 | 6.12.0-103.40.4.1.el10uek | ELSA-2025-20551 |
| Oracle Linux 9 | rv +28 | 5.14.0-570.41.1.0.1.el9_6 | ELSA-2025-15429 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.75.1.el8_10 | ELSA-2025-15785 |
Advisories 50
- RHSA-2025:15782 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2025-1653 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- USN-8028-5 linux-aws, linux-aws-6.8, linux-gkeop, linux-nvidia, linux-nvidia-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8126-1 linux-azure-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-8 linux-ibm, linux-ibm-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-6 linux-hwe-6.8, linux-lowlatency-hwe-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8052-1 linux-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8052-2 linux-xilinx vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8074-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8074-2 linux-azure-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8031-3 linux-gcp, linux-gke vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-1 linux, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-4 linux-aws-fips, linux-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-3 linux-realtime, linux-raspi-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-2 linux-realtime-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8028-7 linux-nvidia-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8031-2 linux-gcp-fips vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-8031-1 linux-gcp-6.8 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7833-2 linux-realtime-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7833-1 linux, linux-aws, linux-gcp, linux-oem-6.14, linux-oracle, linux-oracle-6.14, linux-raspi, linux-realtime vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7834-1 linux-azure, linux-azure-6.14, linux-azure-nvidia-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7833-4 linux-gcp-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- USN-7833-3 linux-aws-6.14 vulnerabilities Ubuntu Security Notices (USN) · Nov 3, 2026
- ALSA-2025:15782 Moderate: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:15429 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:15785 Important: kernel security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2025:15786 Important: kernel-rt security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2025:17958 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- RHSA-2025:15786 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Jul 30, 2026
- RHSA-2025:15785 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jul 30, 2026
- RHSA-2025:15429 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jul 30, 2026
- SUSE-SU-2026:20560-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jul 9, 2026
- USN-7856-1 linux-hwe-6.14 vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- openSUSE-SU-2025:20081-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21179-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21139-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21074-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20601-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20602-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02997-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20586-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20577-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:03011-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02996-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02853-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02923-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02969-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:03023-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2025-15782 Moderate: kernel security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Sep 18, 2025
- ELSA-2025-15785 Important: kernel security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 15, 2025