USB: core: Fix deadlock in usb_deauthorize_interface()
Priority LOW 33CWE-667Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 14 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix deadlock in usb_deauthorize_interface() Among the attribute file callback routines in drivers/usb/core/sysfs.c, the interface_authorized_store() function is the only one which acquires a device lock on an ancestor device: It calls usb_deauthorize_interface(), which locks the interface's parent USB device. The will lead to deadlock if another process already owns that lock and tries to remove the interface, whether through a configuration change or because the device has been disconnected. As part of the removal procedure, device_del() waits for all ongoing sysfs attribute callbacks to complete. But usb_deauthorize_interface() can't complete until the device lock has been released, and the lock won't be released until the removal has finished. The mechanism provided by sysfs to prevent this kind of deadlock is to use the sysfs_break_active_protection() function, which tells sysfs not to wait for the attribute callback. Reported-and-tested by: Yue Sun <[email protected]> Reported by: xingwei lee <[email protected]>
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0019 8th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.312, 5.4.274, 5.10.215 +6Red Hat: 4 advisoriesRed Hat: 14 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.4 and later | 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 4.4 and later Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.4 to before 4.19.312; 4.20.0 to before 5.4.274; 5.5.0 to before 5.10.215; 5.11.0 to before 5.15.154; 5.16.0 to before 6.1.84; 6.2.0 to before 6.6.24; 6.7.0 to before 6.7.12; 6.8.0 to before 6.8.3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:r1:*:*:*:*:*:* | 6.9 r1 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.4 to before 4.19.312; 4.20.0 to before 5.4.274; 5.5.0 to before 5.10.215; 5.11.0 to before 5.15.154; 5.16.0 to before 6.1.84; 6.2.0 to before 6.6.24; 6.7.0 to before 6.7.12; 6.8.0 to before 6.8.3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:r1:*:*:*:*:*:* Versions 6.9 r1 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9
Red Hat 4 advisories
- RHSA-2025:13135 Released 2025-08-06 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.81.1.el9_4, libperf-5.14.0-427.81.1.el9_4
- Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.81.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.81.1.el9_4, kernel-64k-devel-5.14.0-427.81.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.81.1.el9_4, kernel-5.14.0-427.81.1.el9_4, kernel-64k-5.14.0-427.81.1.el9_4 +29
- Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.81.1.el9_4, kernel-rt-core-5.14.0-427.81.1.el9_4, kernel-rt-debug-5.14.0-427.81.1.el9_4 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.81.1.el9_4, kernel-rt-core-5.14.0-427.81.1.el9_4, kernel-rt-debug-5.14.0-427.81.1.el9_4 +11
- RHSA-2024:9315 Released 2024-11-12 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers-5.14.0-503.11.1.el9_5, kernel-tools-libs-devel-5.14.0-503.11.1.el9_5, libperf-5.14.0-503.11.1.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-503.11.1.el9_5, kernel-64k-debug-devel-matched-5.14.0-503.11.1.el9_5, kernel-64k-devel-5.14.0-503.11.1.el9_5 +12
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.4.0-503.11.1.el9_5, kernel-5.14.0-503.11.1.el9_5, kernel-64k-5.14.0-503.11.1.el9_5 +30
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +9
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +11
- RHSA-2024:3627 Released 2024-06-05 · Red Hat rating Moderatekernel-rt security and bug fix update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.5.1.rt7.346.el8_10, kernel-rt-core-4.18.0-553.5.1.rt7.346.el8_10, kernel-rt-debug-4.18.0-553.5.1.rt7.346.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.5.1.rt7.346.el8_10, kernel-rt-core-4.18.0-553.5.1.rt7.346.el8_10, kernel-rt-debug-4.18.0-553.5.1.rt7.346.el8_10 +7
Show 1 more Red Hat advisories
- RHSA-2024:3618 Released 2024-06-05 · Red Hat rating Moderatekernel update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.5.1.el8_10, kernel-4.18.0-553.5.1.el8_10, kernel-abi-stablelists-4.18.0-553.5.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.5.1.el8_10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat CodeReady Linux Builder EUS (v.9.4) | Fixed | RHSA-2025:13135 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:13135 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:3618 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.4) | Fixed | RHSA-2025:13135 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:3618 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2024:3627 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2024:3627 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time EUS (v.9.4) | Fixed | RHSA-2025:13135 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) | Fixed | RHSA-2025:13135 |
Not affected: 2 products
- Red Hat CodeReady Linux Builder (v. 9)
- Red Hat Enterprise Linux AppStream (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-26934
- 2026-10-03 Alias added: GHSA-6wq5-2j9j-6rvr
- 2026-10-29 Affected versions changed · Red Hat
References
Patch 9
- https://git.kernel.org/stable/c/8cbdd324b41528994027128207fae8100dff094f
- https://git.kernel.org/stable/c/12d6a5681a0a5cecc2af7860f0a1613fa7c6e947
- https://git.kernel.org/stable/c/e451709573f8be904a8a72d0775bf114d7c291d9
- https://git.kernel.org/stable/c/1b175bc579f46520b11ecda443bcd2ee4904f66a
- https://git.kernel.org/stable/c/ab062fa3dc69aea88fe62162c5881ba14b50ecc5
- https://git.kernel.org/stable/c/122a06f1068bf5e39089863f4f60b1f5d4273384
- https://git.kernel.org/stable/c/dbdf66250d2d33e8b27352fcb901de79f3521057
- https://git.kernel.org/stable/c/07acf979da33c721357ff27129edf74c23c036c6
- https://git.kernel.org/stable/c/80ba43e9f799cbdd83842fc27db667289b3150f5
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Sources
- CVE-2024-26934 · CVE Program
- CVE-2024-26934 · NVD
- FIRST EPSS
- GHSA-6wq5-2j9j-6rvr · GitHub Advisory Database · CC BY 4.0
- CVE-2024-26934 · Red Hat security data · CC BY 4.0
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