CVE-2026-68361 — hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop
In the Linux kernel, the following vulnerability has been resolved: hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop hid_hw_stop() does not stop the device IO. This results in a race condition between hid_input_report() and the point immediately following the execution of hid_device_io_start() within corsairpsu_probe(). If the probe operation fails after "io start" has been initiated, this race condition will result in a uaf vulnerability [1]. CPU0 CPU1 ==== ==== corsairpsu_probe() hid_device_io_start() ... unlock driver_input_lock hid_hw_stop() kfree(hidraw) __hid_input_report() ... acquire driver_input_lock hid_report_raw_event() hidraw_report_event() ... access hidraw's list_lock // trigger uaf Consequently, when corsairpsu_probe() fails and hid_hw_stop() needs to be executed, the io_started flag is first cleared while holding the driver_input_lock to prevent potential race conditions involving input reports. [1] BUG: KASAN: slab-use-after-free in rt_spin_lock+0x83/0x400 kernel/locking/spinlock_rt.c:56 Call Trace: hidraw_report_event+0x5d/0x3a0 drivers/hid/hidraw.c:577 hid_report_raw_event+0x311/0x1730 drivers/hid/hid-core.c:2076 __hid_input_report drivers/hid/hid-core.c:2152 [inline] hid_input_report+0x44e/0x580 drivers/hid/hid-core.c:2174 hid_irq_in+0x47e/0x6d0 drivers/hid/usbhid/hid-core.c:286 __usb_hcd_giveback_urb+0x3b3/0x5e0 drivers/usb/core/hcd.c:1657 dummy_timer+0x8a9/0x47d0 drivers/usb/gadget/udc/dummy_hcd.c:2005 Allocated by task 10: hidraw_connect+0x57/0x430 drivers/hid/hidraw.c:606 hid_connect+0x5bf/0x19d0 drivers/hid/hid-core.c:2277 hid_hw_start+0xa8/0x120 drivers/hid/hid-core.c:2387 corsairpsu_probe+0xd9/0x3c0 drivers/hwmon/corsair-psu.c:782 Freed by task 10: hidraw_disconnect+0x4f/0x60 drivers/hid/hidraw.c:662 hid_disconnect drivers/hid/hid-core.c:2362 [inline] hid_hw_stop+0x101/0x1e0 drivers/hid/hid-core.c:2407 corsairpsu_probe+0x327/0x3c0 drivers/hwmon/corsair-psu.c:826 Fix the problem by calling hid_device_io_stop() before calling hid_hw_stop(). [groeck: Updated subject and description; call hid_device_io_stop() only if IO has been started]
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.2% (30-day exploitation probability)+1
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
- No fix documented in the sources: reduce exposure and monitor the vendor advisory.
- Search available logs for exploit probes, errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Linux | Linux | ≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < 45dcd8a63069197f64dbda30509b9e224b74c0d8≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < c80ed058f31bb0251a748034d69feb376741dcb2≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < e6e1e0f3050d1a1a3ea1c9d6253363e87fdad67a≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < c0aae8d24f5e52d6910f97d59bc624e131f3ae1a≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < ec477af3a7e8d3964e62fd24ef01cdebb96b8e4e≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < bb25bd980f2d9bd34558e1b1d16636e4945baf14≥ d115b51e0e567199c821fc39e13b6af7e78f247d and < 9ab8656548cd737b98d0b19c4253aff8d68e97f4version 5.11 | Vulnerable | CVE Program (cve.org) e CISA ADP |
EPSS over time FIRST
Oct 15, 2026 → Oct 30, 2026 · 15 reading(s) · max 0.19%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Not enough vector or weakness data: use the affected application’s logs as a starting point.
Timeline
What happened to this CVE, newest first.
- 2026
- Record published
- Affected products added · linux/linux
- Source status changed · → Received
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 15, 2026 – Oct 15, 2026
References
7 on the record
- git.kernel.org/stable/c/45dcd8a63069197f64dbda30509b9e224b74c0d8
- git.kernel.org/stable/c/c0aae8d24f5e52d6910f97d59bc624e131f3ae1a
- git.kernel.org/stable/c/e6e1e0f3050d1a1a3ea1c9d6253363e87fdad67a
- git.kernel.org/stable/c/ec477af3a7e8d3964e62fd24ef01cdebb96b8e4e
- git.kernel.org/stable/c/9ab8656548cd737b98d0b19c4253aff8d68e97f4
- git.kernel.org/stable/c/bb25bd980f2d9bd34558e1b1d16636e4945baf14
- git.kernel.org/stable/c/c80ed058f31bb0251a748034d69feb376741dcb2
Elsewhere on this site
Related CVEs (same products)
- Unknown CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 2d
- Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 2d
- Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 2d
- Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 2d
- Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 2d
- Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 2d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No CVSS score published by NVD, the CNA, CISA or GitHub so far.
- No fixed version, patch or mitigation documented.
- No CISA SSVC assessment.
- No CWE classification.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-68361 is "hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.19% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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