CVE-2022-49975
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
bpf: Don't redirect packets with invalid pkt_len
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5293efe62df81908f2e90c9820c7edcc8e61f5e9 | affected | git | 8b68e53d56697a59b5c53893b53f508bbdf272a0 | Unavailable | None listed |
| 5293efe62df81908f2e90c9820c7edcc8e61f5e9 | affected | git | 6204bf78b2a903b96ba43afff6abc0b04d6e0462 | Unavailable | None listed |
| 5293efe62df81908f2e90c9820c7edcc8e61f5e9 | affected | git | a75987714bd2d8e59840667a28e15c1fa5c47554 | Unavailable | None listed |
| 5293efe62df81908f2e90c9820c7edcc8e61f5e9 | affected | git | 72f2dc8993f10262092745a88cb2dd0fef094f23 | Unavailable | None listed |
| 5293efe62df81908f2e90c9820c7edcc8e61f5e9 | affected | git | fd1894224407c484f652ad456e1ce423e89bb3eb | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.9 | Unavailable | None listed |
| 5.4.212 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.141 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.65 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.19.7 | unaffected | semver | Unavailable | 5.19.* | None listed |
| 6.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |