CVE-2026-74263
- Source
- https://cve.org/CVERecord?id=CVE-2026-74263
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74263.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74263
- Downstream
- Published
- 2026-08-15T05:57:39.660Z
- Modified
- 2026-08-18T03:31:00.447447581Z
- Summary
- net: wwan: t7xx: check skb_clone in control TX
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: wwan: t7xx: check skb_clone in control TX
t7xxportctrltx() clones each skb fragment before passing it to the port transmit path. The clone is used immediately to set cloned->len, so an skbclone() failure results in a NULL pointer dereference.
Check the clone before using it. If previous fragments were already queued, preserve the driver's existing partial-write behavior by returning the number of bytes submitted so far.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74263.json" }- References
-
- https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039d
- https://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900c
- https://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095
- https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029
- https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74263.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74263
- 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
-
Introduced36bd28c1cb0dbf48645cfe43159907fb3253b33aFixed7edd4db82f9429591de10be4c904c817f12ba029Fixed112490467586146d323cb7230b1d72137e36900cFixedf7aebaee2961bfcb86f282202d3dbd9b69db1a7cFixed4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095Fixed05f789fa90d95d5771230e78453cedff2486039d