CVE-2022-49975
- Source
- https://cve.org/CVERecord?id=CVE-2022-49975
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49975.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49975
- Downstream
- Related
- Published
- 2025-06-18T11:00:38Z
- Modified
- 2026-08-12T03:30:12Z
- Summary
- bpf: Don't redirect packets with invalid pkt_len
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Don't redirect packets with invalid pkt_len
Syzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any skbs, that is, the flow->head is null. The root cause, as the [2] says, is because that bpf_prog_test_run_skb() run a bpf prog which redirects empty skbs. So we should determine whether the length of the packet modified by bpf prog or others like bpf_prog_test is valid before forwarding it directly.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49975.json" }- References
-
- https://git.kernel.org/stable/c/6204bf78b2a903b96ba43afff6abc0b04d6e0462
- https://git.kernel.org/stable/c/72f2dc8993f10262092745a88cb2dd0fef094f23
- https://git.kernel.org/stable/c/8b68e53d56697a59b5c53893b53f508bbdf272a0
- https://git.kernel.org/stable/c/a75987714bd2d8e59840667a28e15c1fa5c47554
- https://git.kernel.org/stable/c/fd1894224407c484f652ad456e1ce423e89bb3eb
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49975.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49975
- 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
-
Introduced5293efe62df81908f2e90c9820c7edcc8e61f5e9Fixed8b68e53d56697a59b5c53893b53f508bbdf272a0Fixed6204bf78b2a903b96ba43afff6abc0b04d6e0462Fixeda75987714bd2d8e59840667a28e15c1fa5c47554Fixed72f2dc8993f10262092745a88cb2dd0fef094f23Fixedfd1894224407c484f652ad456e1ce423e89bb3eb