CVE-2026-63797
CVE CVE-2026-63797EUVD EUVD-2026-45463Published 2026-07-19T12:02:05.000ZLast changed 2026-08-05T12:35:46.000ZCVSS 8.4
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2-rc1; patch: 6.12.95; patch: 6.18.38; patch: 6.6.144; bc69d10665690492421d926b1cd9a7a36bffd691 <104d100212396801f1d9d388282f746e23e2bfd6; patch: 0; 5.18; patch: 7.1.3; bc69d10665690492421d926b1cd9a7a36bffd691 <ddf13f91ca82c94ef7ad9c41a434a03313f8eb1b; bc69d10665690492421d926b1cd9a7a36bffd691 <ff268cd9ccbce6472a0658791b417bf11c31ee39; bc69d10665690492421d926b1cd9a7a36bffd691 <c5ebb06c7e24d531b68707168e04698859d642bc; bc69d10665690492421d926b1cd9a7a36bffd691 <1ff3f528e67d20e2b1483dcaba899dc7832b2e6b; bc69d10665690492421d926b1cd9a7a36bffd691 <1306fc4f76f765727a6d5aefbf08ef0c8f32996f; patch: 6.1.178
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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