CVE-2022-49975 (GCVE-0-2022-49975)
Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-05-11 19:10
VLAI
EPSS
VEX
Title
bpf: Don't redirect packets with invalid pkt_len
Summary
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.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
5293efe62df81908f2e90c9820c7edcc8e61f5e9 , < 8b68e53d56697a59b5c53893b53f508bbdf272a0
(git)
Affected: 5293efe62df81908f2e90c9820c7edcc8e61f5e9 , < 6204bf78b2a903b96ba43afff6abc0b04d6e0462 (git) Affected: 5293efe62df81908f2e90c9820c7edcc8e61f5e9 , < a75987714bd2d8e59840667a28e15c1fa5c47554 (git) Affected: 5293efe62df81908f2e90c9820c7edcc8e61f5e9 , < 72f2dc8993f10262092745a88cb2dd0fef094f23 (git) Affected: 5293efe62df81908f2e90c9820c7edcc8e61f5e9 , < fd1894224407c484f652ad456e1ce423e89bb3eb (git) |
guessed | |
| Linux | Linux |
Affected:
4.9
Unaffected: 0 , < 4.9 (semver) Unaffected: 5.4.212 , ≤ 5.4.* (semver) Unaffected: 5.10.141 , ≤ 5.10.* (semver) Unaffected: 5.15.65 , ≤ 5.15.* (semver) Unaffected: 5.19.7 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix) |
guessed |
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|---|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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