CVE-2026-98030
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: dsa: bcm_sf2: bound the CFP rule dump by the caller's buffer size
In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: bound the CFP rule dump by the caller's buffer size bcm_sf2_cfp_rule_get_all() walks the whole cfp.unique bitmap into rule_locs[] without consulting nfc->rule_cnt, which is how many entries the caller had room for. ETHTOOL_GRXCLSRLALL requires no CAP_NET_ADMIN and the ioctl sizes the buffer from the rule_cnt userspace passes in, so once an admin has installed CFP rules any user can ask for fewer slots than there are rules and run off the end of the allocation. A rule_cnt of 0 leaves the buffer pointer NULL and the walk dereferences it.
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) |
|---|---|---|---|---|---|
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | ca49c526291d7cd3a5cb49b0edd7f50a5ae7176e | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | 8e41ce02589c92356bfd8ef62f6ceff840546e1a | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | f2cf4ef2d94fc15fd2e21c131fc1ab3f76125bf4 | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | f5e93162b3dd195bfda815e8f7a39aaf1d45437b | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | f1a2869b3629c0e8394b77b38cb9f19a018c653c | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | fd1a78c16b1f6978c09cf048e15f349732e4c707 | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | b231b6d8516d3fe0d4bba549908e08d26a4531a5 | Unavailable | None listed |
| 7318166cacad158b46240f66250d7cc5a481653b | affected | git | cdb719f4b8596d9ccee2d56d204c2c4dce982f46 | 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) |
|---|---|---|---|---|---|
| 4.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.11 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.7 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |