Veille CVE
CVE-2026-63797
8.4 ÉlevéeDescription
In the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Fix use-after-free on probe error path rpmsg_chrdev_probe() stores the newly allocated eptdev in the default endpoint's priv pointer before calling rpmsg_chrdev_eptdev_add(). If rpmsg_chrdev_eptdev_add() then fails, its error path frees eptdev while the default endpoint may still dispatch callbacks with the stale priv pointer. Avoid publishing eptdev through the default endpoint until rpmsg_chrdev_eptdev_add() succeeds. Messages received before the priv pointer is published should be ignored by rpmsg_ept_cb(). Flow-control updates can hit rpmsg_ept_flow_cb() in the same window, so make both callbacks return success when priv is NULL.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 8.4 Élevée | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 8.4 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://git.kernel.org/stable/c/104d100212396801f1d9d388282f746e23e2bfd6 Patch
- https://git.kernel.org/stable/c/1306fc4f76f765727a6d5aefbf08ef0c8f32996f Patch
- https://git.kernel.org/stable/c/1ff3f528e67d20e2b1483dcaba899dc7832b2e6b Patch
- https://git.kernel.org/stable/c/c5ebb06c7e24d531b68707168e04698859d642bc Patch
- https://git.kernel.org/stable/c/ddf13f91ca82c94ef7ad9c41a434a03313f8eb1b Patch
- https://git.kernel.org/stable/c/ff268cd9ccbce6472a0658791b417bf11c31ee39 Patch