Description
In the Linux kernel, the following vulnerability has been resolved:
USB: core: Fix deadlock in port "disable" sysfs attribute
The show and store callback routines for the "disable" sysfs attribute
file in port.c acquire the device lock for the port's parent hub
device. This can cause problems if another process has locked the hub
to remove it or change its configuration:
Removing the hub or changing its configuration requires the
hub interface to be removed, which requires the port device
to be removed, and device_del() waits until all outstanding
sysfs attribute callbacks for the ports have returned. The
lock can't be released until then.
But the disable_show() or disable_store() routine can't return
until after it has acquired the lock.
The resulting deadlock can be avoided by calling
sysfs_break_active_protection(). This will cause the sysfs core not
to wait for the attribute's callback routine to return, allowing the
removal to proceed. The disadvantage is that after making this call,
there is no guarantee that the hub structure won't be deallocated at
any moment. To prevent this, we have to acquire a reference to it
first by calling hub_get().
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.0 | 6.1.84 |
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 | 6.7.12-1 | — |
| Debian 13 | linux | 6.7.12-1 | — |
| Debian 12 | linux | 6.1.85-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux | 6.8.0-35.35 | USN-6816-1 |
| Ubuntu 24.04 LTS | linux-aws | 6.8.0-1009.9 | USN-6817-1 |
| Ubuntu 24.04 LTS | linux-azure | 6.8.0-1008.8 | USN-6817-3 |
| Ubuntu 24.04 LTS | linux-gcp | 6.8.0-1008.9 | USN-6817-1 |
| Ubuntu 24.04 LTS | linux-gke | 6.8.0-1004.7 | USN-6817-3 |
| Ubuntu 24.04 LTS | linux-ibm +2 | 6.8.0-1006.6 | USN-6878-1, USN-6817-2, USN-6816-1 |
| Ubuntu 24.04 LTS | linux-raspi | 6.8.0-1005.5 | USN-6816-1 |
| Ubuntu 24.04 LTS | linux-riscv +1 | 6.8.0-35.35.1 | USN-6816-1 |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| 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 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 24.04 LTS | linux-raspi-realtime | 6.8.0-2004.4 | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime | 6.8.1-1002.2 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | bpftool | 7.4.0-503.11.1.el9_5 | RHSA-2024:9315 |
| RHEL 9 | rv +67 | 5.14.0-503.11.1.el9_5 | RHSA-2024:9315 |
| RHEL 8 | kernel-rt +12 | 4.18.0-553.5.1.rt7.346.el8_10 | RHSA-2024:3627 |
| RHEL 8 | perf +26 | 4.18.0-553.5.1.el8_10 | RHSA-2024:3618 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.4 EUS | bpftool | 7.3.0-427.85.1.el9_4 | RHSA-2025:15016 |
| RHEL 9.4 EUS | rv +64 | 5.14.0-427.85.1.el9_4 | RHSA-2025:15016 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | kernel-rt +11 | 4.18.0-553.5.1.rt7.346.el8_10 | ALSA-2024:3627 |
| AlmaLinux 8 | perf +24 | 4.18.0-553.5.1.el8_10 | ALSA-2024:3618 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | kernel | 4.18.0-553.5.1.el8_10 | RLSA-2024:3618 |
| Rocky Linux 8 | kernel-rt | 4.18.0-553.5.1.rt7.346.el8_10 | RLSA-2024:3627 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | kernel-64kb +3 | 6.4.0-150600.23.7.3 | SUSE-SU-2024:2203-1 |
| SLES 15 SP6 | kernel-azure +1 | 6.4.0-150600.8.5.4 | SUSE-SU-2024:2135-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.7.3.150600.12.2.7 | SUSE-SU-2024:2203-1 |
| SLES 15 SP6 | kernel-docs | 6.4.0-150600.23.7.4 | SUSE-SU-2024:2203-1 |
| SLES 15 SP6 | kernel-source | 6.4.0-150600.23.7.2 | SUSE-SU-2024:2203-1 |
| SLES 15 SP6 | kernel-syms | 6.4.0-150600.23.7.1 | SUSE-SU-2024:2203-1 |
| SLES 15 SP6 | kernel-syms-azure | 6.4.0-150600.8.5.1 | SUSE-SU-2024:2135-1 |
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.0 | kernel-default-base | 6.4.0-17.1.1.51 | SUSE-SU-2025:20008-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-9.1 | SUSE-SU-2025:20028-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-18.1 | SUSE-SU-2025:20008-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.7.3 | SUSE-SU-2024:2203-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | 1-150600.1.5.1 | SUSE-SU-2024:2973-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_1 | 1-150600.13.3.7 | SUSE-SU-2024:2203-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_15 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +2 | 6.4.0-150600.23.7.1 | SUSE-SU-2024:2203-1 |
| openSUSE Leap 15.6 | kernel-64kb +5 | 6.4.0-150600.23.7.3 | SUSE-SU-2024:2203-1 |
| openSUSE Leap 15.6 | kernel-azure +1 | 6.4.0-150600.8.5.4 | SUSE-SU-2024:2135-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.7.3.150600.12.2.7 | SUSE-SU-2024:2203-1 |
| openSUSE Leap 15.6 | kernel-docs | 6.4.0-150600.23.7.4 | SUSE-SU-2024:2203-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.5.1 | SUSE-SU-2024:2973-1 |
| openSUSE Leap 15.6 | kernel-source | 6.4.0-150600.23.7.2 | SUSE-SU-2024:2203-1 |
| openSUSE Leap 15.6 | kernel-syms-azure | 6.4.0-150600.8.5.1 | SUSE-SU-2024:2135-1 |
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.51.1 | SUSE-SU-2024:1644-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.1.84-99.169 | 1.0-0.amzn2023 | ALAS2023-2024-696 |
| Amazon Linux 2023 | perf +14 | 6.1.84-99.169.amzn2023 | ALAS2023-2024-696 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.160.1-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | bpftool | 7.4.0-503.11.1.el9_5 | ELSA-2024-9315 |
| Oracle Linux 9 | rv +28 | 5.14.0-503.11.1.el9_5 | ELSA-2024-9315 |
| Oracle Linux 8 | perf +19 | 4.18.0-553.5.1.el8_10 | ELSA-2024-3618 |
Advisories 25
- RHSA-2024:3627 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2024:3627 Moderate: kernel-rt security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3618 Moderate: kernel update AlmaLinux Security Advisories · Oct 29, 2026
- USN-6878-1 linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- USN-6816-1 linux, linux-ibm, linux-lowlatency, linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- USN-6817-3 linux-azure, linux-gke vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- USN-6817-1 linux-aws, linux-gcp vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- USN-6817-2 linux-oem-6.8 vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- RHSA-2024:9315 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2024:3618 Red Hat Security Advisory: kernel update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- WID-SEC-2024-1008 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Oct 12, 2026
- RHSA-2025:15016 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Sep 11, 2026
- SUSE-SU-2025:20008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:20028-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- RLSA-2024:3627 Moderate: kernel-rt security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2024:3618 Moderate: kernel update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:2973-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2190-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2135-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2024-696 Important: kernel security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 2, 2025
- SUSE-SU-2024:2203-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2024:1644-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2024-9315 Moderate: kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 14, 2024
- ELSA-2024-3618 Moderate: kernel update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jun 5, 2024
References
- https://git.kernel.org/stable/c/9dac54f08198147f5ec0ec52fcf1bc8ac899ac05
- https://git.kernel.org/stable/c/f51849833705dea5b4f9b0c8de714dd87bd6c95c
- https://git.kernel.org/stable/c/4facc9421117ba9d8148c73771b213887fec77f7
- https://git.kernel.org/stable/c/73d1589b91f2099e5f6534a8497b7c6b527e064e
- https://git.kernel.org/stable/c/f4d1960764d8a70318b02f15203a1be2b2554ca1