CVE-2026-89823
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)
drm: fix race between partial drm_dev_register() failure and ioctl
In the Linux kernel, the following vulnerability has been resolved: drm: fix race between partial drm_dev_register() failure and ioctl If drm_dev_register() fails after registering a minor (e.g. render minor registered, primary minor fails), userspace could have opened the first minor and entered a drm_dev_enter() critical section. Since the unplugged flag was never set, the ioctl proceeds while the error path tears down device resources. Fix this by introducing drm_dev_synchronize_unplug(), which sets the unplugged flag and waits for the SRCU barrier, ensuring all in-flight drm_dev_enter() critical sections complete before cleanup proceeds; call it on the error path of drm_dev_register().
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) |
|---|---|---|---|---|---|
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 26d9162213952927cd59c0d94b7e0e992b347bec | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 24d28d15c0f7f7d4a1c229f8730314f0f8758810 | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 6729990df9e70623bf53f855b521ae71ca9cb278 | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | a0a7e2e177f2f18b9e7318a4c64ac44efd9ef22c | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 19dbfe4d586aecfed121cb3fa62281761d9d341f | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 79d09cfe90304ff4f195e47d569800f5e0f8b854 | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | 2d1215a72159d00001e08dee162e27718934bee9 | Unavailable | None listed |
| bee330f3d67273a68dcb99f59480d59553c008b2 | affected | git | eb197f7d60f00d0f5b1b3505dfc86a7e36045a3e | 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) |
|---|---|---|---|---|---|
| 4.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.18 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |