net: inet: do not leave a dangling sk pointer in inet_create()
In the Linux kernel, the following vulnerability has been resolved: net: inet: do not leave a dangling sk pointer in inet_create() sock_init_data() attaches the allocated sk object to the provided sock object. If inet_create() fails later, the sk object is freed, but the sock object retains the dangling pointer, which may create use-after-free later. Clear the sk pointer in the sock object on error.
02 / AFFECTED SOFTWARE
Affected packages
1720 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: net: inet: do not leave a dangling sk pointer in inet_create() sock_init_data() attaches the allocated sk object to the provided sock object. If inet_create() fails later, the sk object is freed, but the sock object retains the dangling pointer, which may create use-after-free later. Clear the sk pointer in the sock object on error.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/25447c6aaa7235f155292b0c58a067347e8ae891
- https://git.kernel.org/stable/c/2bc34d8c8898ae9fddf4612501aabb22d76c2b2c
- https://git.kernel.org/stable/c/3e8258070b0f2aba66b3ef18883de229674fb288
- https://git.kernel.org/stable/c/691d6d816f93b2a1008c14178399061466e674ef
- https://git.kernel.org/stable/c/9365fa510c6f82e3aa550a09d0c5c6b44dbc78ff
- https://git.kernel.org/stable/c/b4513cfd3a10c03c660d5d3d26c2e322efbfdd9b
- https://git.kernel.org/stable/c/f8a3f255f7509a209292871715cda03779640c8d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56601.json
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-56601