CVE-2026-74290
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net/sched: cls_flow: Dont expose folded kernel pointers
In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_flow: Dont expose folded kernel pointers The flow classifier falls back to addr_fold() for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can observe the resulting classid through class statistics. This allows a tc classifier in a user/network namespace to recover the 32-bit folded value of skb->sk, skb_dst() or skb_nfct(). Align with standard kernel practices for pointer hashing and replace the XOR folding with a keyed siphash (which is cryptographically secure)
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) |
|---|---|---|---|---|---|
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | 19f2ecf8ea564562c7e7a919cf38068dd9aa1c96 | Unavailable | None listed |
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | 3d054001860270748405a3f9270c5fa0bf7ffc19 | Unavailable | None listed |
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | fb31fbe51c233f3bf47021121f63d2e42cac2d08 | Unavailable | None listed |
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | 0a8b5b74f0e6b6b9ce453bcfa4baa502c4c7577a | Unavailable | None listed |
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | 6151159618198675e01c391676e579738286c135 | Unavailable | None listed |
| e5dfb815181fcb186d6080ac3a091eadff2d98fe | affected | git | f294fc71c4a0fa4964f6428a1b4e7929c1d83125 | 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) |
|---|---|---|---|---|---|
| 2.6.25 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.25 | Unavailable | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |