CVE-2026-74736
- Source
- https://cve.org/CVERecord?id=CVE-2026-74736
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74736.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74736
- Downstream
- Published
- 2026-08-26T14:36:49.950Z
- Modified
- 2026-08-28T03:47:18.086348867Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- net/sched: cls_bpf: reject dev-bound programs bound to a different device
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/sched: cls_bpf: reject dev-bound programs bound to a different device
clsbpfprogfromefd() obtained a SCHEDCLS program via bpfproggettypedev() but never verified that a device-bound (offloaded) program's bound netdev matches the TC netdev the classifier is being attached to. This let a program loaded with progifindex for device A be attached via clsbpf + skipsw to device B; deleting device A then destroyed the program's offload state while it was still attached to device B, triggering a netdevsim WARN (panic with paniconwarn=1).
Mirror the XDP attach path (net/core/dev.c) and reject the attach with -EINVAL when a dev-bound program's bound device does not match the target device.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74736.json" }- References
-
- https://git.kernel.org/stable/c/120977e2c096deea4e866e4273be9220b957c29e
- https://git.kernel.org/stable/c/5685bbbd3cbfbeb0de96a1d275a5ca073dfebb5e
- https://git.kernel.org/stable/c/adb3e7c26a51a10d94a241c6de7a81a2863dcacf
- https://git.kernel.org/stable/c/daf546ab5763ce6a18280cb4db060e836c515301
- https://git.kernel.org/stable/c/ec5a552f4b2d841c6c021752450716e1a9676661
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74736.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74736
- 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
-
Introduced2b3486bc2d237ec345b3942b7be5deabf8c8fed1Fixedec5a552f4b2d841c6c021752450716e1a9676661Fixeddaf546ab5763ce6a18280cb4db060e836c515301Fixedadb3e7c26a51a10d94a241c6de7a81a2863dcacfFixed5685bbbd3cbfbeb0de96a1d275a5ca073dfebb5eFixed120977e2c096deea4e866e4273be9220b957c29e