CVE-2026-31736
- Source
- https://cve.org/CVERecord?id=CVE-2026-31736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31736
- Downstream
- Related
- Published
- 2026-05-01T14:14:33.583Z
- Modified
- 2026-07-15T01:48:55.661306760Z
- Summary
- net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled
If the gmac0 is disabled, the precheck for a valid ingress device will cause a NULL pointer deref and crash the system. This happens because eth->netdev[0] will be NULL but the code will directly try to access netdev_ops.
Instead of just checking for the first netdevice, it must be checked if any of the mtketh netdevices is matching the netdevops of the ingress device.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31736.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0b832aad33e6f160fda310f0306a6483d85e9d6e
- https://git.kernel.org/stable/c/5dff799c677152dde963c3917bacd9127b03e145
- https://git.kernel.org/stable/c/7b2380f0a0e374010c1a4a13203511b9dee5b166
- https://git.kernel.org/stable/c/976ff48c2ac6e6b25b01428c9d7997bcd0fb2949
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31736.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31736
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73cfd947dbdb25ef9863ac49c4596a7d53ad4025Fixed0b832aad33e6f160fda310f0306a6483d85e9d6eFixed5dff799c677152dde963c3917bacd9127b03e145Fixed7b2380f0a0e374010c1a4a13203511b9dee5b166Fixed976ff48c2ac6e6b25b01428c9d7997bcd0fb2949