CVE-2026-31756
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop()
In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop() dwc2_gadget_exit_clock_gating() internally calls call_gadget() macro, which expects hsotg->lock to be held since it does spin_unlock/spin_lock around the gadget driver callback invocation. However, dwc2_hsotg_udc_stop() calls dwc2_gadget_exit_clock_gating() without holding the lock. This leads to: - spin_unlock on a lock that is not held (undefined behavior) - The lock remaining held after dwc2_gadget_exit_clock_gating() returns, causing a deadlock when spin_lock_irqsave() is called later in the same function. Fix this by acquiring hsotg->lock before calling dwc2_gadget_exit_clock_gating() and releasing it afterwards, which satisfies the locking requirement of the call_gadget() macro.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5cb3cb3db317c58d50b68f3ca3bb8343ea9d1acd | affected | git | e9fcca3e87463013d595c65c2189ffaa32ad3b50 | Unavailable | None listed |
| 1ac826cebc2776f91569f2aa9c9c3da2375d2096 | affected | git | 8ffe31acb3b77a30ae34d01719a269881569fb7f | Unavailable | None listed |
| 41732f9febdccb4f9b87c13cb915d717d68ccafd | affected | git | beab10429439e20708036a66fb0d97ffb79da6a1 | Unavailable | None listed |
| ba78c2b3254c4a458c01776612e8a573e12f8d26 | affected | git | 4ed9d2dd9f29828c311db6ec4b8e0d34bfd6d6a4 | Unavailable | None listed |
| af076a41f8a28faf9ceb9dd2d88aef2c202ef39a | affected | git | 61937f686290494998236c680ce0836b8dd63a3f | Unavailable | None listed |
| af076a41f8a28faf9ceb9dd2d88aef2c202ef39a | affected | git | 51b62286fc668c6eb74dee7624ec0beec3c5a0ed | Unavailable | None listed |
| af076a41f8a28faf9ceb9dd2d88aef2c202ef39a | affected | git | 9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a | Unavailable | None listed |
| b39c203690fa1678daecc60f347e43c8b593b969 | affected | git | Unavailable | Unavailable | None listed |
| 5.15.187 | affected | semver | 5.15.203 | Unavailable | None listed |
| 6.1.143 | affected | semver | 6.1.168 | Unavailable | None listed |
| 6.6.96 | affected | semver | 6.6.134 | Unavailable | None listed |
| 6.12.36 | affected | semver | 6.12.81 | Unavailable | None listed |
| 6.15.5 | affected | semver | 6.16 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.16 | Unavailable | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.134 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.81 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.22 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.12 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |