- 7.0HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: uio: Fix stale info pointer in failed registration path After device_add(), the UIO device is visible to userspace and /dev/uioX can be opened. If a later setup step fails, __uio_register_device() unwinds the device but leaves idev->info pointing at the caller-owned struct uio_info. That is unsafe when an opener races with the failed registration path. The open file keeps a reference to the uio_device, while the caller sees registration failure and may free its struct uio_info. Later file operations can then follow idev->info and dereference freed memory. Handle post-device_add() failures like unregister: remove UIO attributes while the info pointer is still valid, then clear idev->info under info_lock and wake existing waiters/async users before removing the device and minor. This makes already-open file descriptors observe the same "device gone" state as normal uio_unregister_device().
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 96% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Affected products
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 63eaa7663335d482a8825c231213e312cacea567
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < df4faf65194ec6c315a59be4c6749eaeb3009243
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 506b43dde5f9ac0068b1360e6b5dbee07fda59fb
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 15340b00e665af805523b08515294a1aa1778151
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 234156f6c6d9ec35dc47abbcc3adc3c79fc6a5ac
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 16695e9059d80ea6661e8399064b0c01f641dd8c
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < ec5bd6731183eb6f619140c9bef2ee11ed818c20
- affected a93e7b331568227500186a465fee3c2cb5dffd1f – < 67b6fc084b034a91c3ec7907a3fed89a2450f30b
- affected 085d735c858934e5d5bfaedb1fc98bd9135e6ff1
- affected 4.14.100 – < 4.15
- affected 4.18
- unaffected < 4.18
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/63eaa7663335d482a8825c231213e312cacea567 (opens in a new tab)
- https://git.kernel.org/stable/c/df4faf65194ec6c315a59be4c6749eaeb3009243 (opens in a new tab)
- https://git.kernel.org/stable/c/506b43dde5f9ac0068b1360e6b5dbee07fda59fb (opens in a new tab)
- https://git.kernel.org/stable/c/15340b00e665af805523b08515294a1aa1778151 (opens in a new tab)
- https://git.kernel.org/stable/c/234156f6c6d9ec35dc47abbcc3adc3c79fc6a5ac (opens in a new tab)
- https://git.kernel.org/stable/c/16695e9059d80ea6661e8399064b0c01f641dd8c (opens in a new tab)
- https://git.kernel.org/stable/c/ec5bd6731183eb6f619140c9bef2ee11ed818c20 (opens in a new tab)
- https://git.kernel.org/stable/c/67b6fc084b034a91c3ec7907a3fed89a2450f30b (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82164 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-93054)Record last updated .