CVE-2026-68361hwmon: (corsair-psu) Stop device IO before calling hid_hw_stop
Updated under an hour ago ()
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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]
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from d115b51e0e567199c821fc39e13b6af7e78f247d before 45dcd8a63069197f64dbda30509b9e224b74c0d8; from d115b51e0e567199c821fc39e13b6af7e78f247d before c80ed058f31bb0251a748034d69feb376741dcb2; from d115b51e0e567199c821fc39e13b6af7e78f247d before e6e1e0f3050d1a1a3ea1c9d6253363e87fdad67a; from d115b51e0e567199c821fc39e13b6af7e78f247d before c0aae8d24f5e52d6910f97d59bc624e131f3ae1a; from d115b51e0e567199c821fc39e13b6af7e78f247d before ec477af3a7e8d3964e62fd24ef01cdebb96b8e4e; from d115b51e0e567199c821fc39e13b6af7e78f247d before bb25bd980f2d9bd34558e1b1d16636e4945baf14; from d115b51e0e567199c821fc39e13b6af7e78f247d before 9ab8656548cd737b98d0b19c4253aff8d68e97f4 | CNA record |
References
- https://git.kernel.org/stable/c/45dcd8a63069197f64dbda30509b9e224b74c0d8
- https://git.kernel.org/stable/c/c80ed058f31bb0251a748034d69feb376741dcb2
- https://git.kernel.org/stable/c/e6e1e0f3050d1a1a3ea1c9d6253363e87fdad67a
- https://git.kernel.org/stable/c/c0aae8d24f5e52d6910f97d59bc624e131f3ae1a
- https://git.kernel.org/stable/c/ec477af3a7e8d3964e62fd24ef01cdebb96b8e4e
- https://git.kernel.org/stable/c/bb25bd980f2d9bd34558e1b1d16636e4945baf14
- https://git.kernel.org/stable/c/9ab8656548cd737b98d0b19c4253aff8d68e97f4
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.